# How to integrate Proabono MCP with Vercel AI SDK v6

```json
{
  "title": "How to integrate Proabono MCP with Vercel AI SDK v6",
  "toolkit": "Proabono",
  "toolkit_slug": "proabono",
  "framework": "Vercel AI SDK",
  "framework_slug": "ai-sdk",
  "url": "https://composio.dev/toolkits/proabono/framework/ai-sdk",
  "markdown_url": "https://composio.dev/toolkits/proabono/framework/ai-sdk.md",
  "updated_at": "2026-03-29T06:46:34.812Z"
}
```

## Introduction

This guide walks you through connecting Proabono to Vercel AI SDK v6 using the Composio tool router. By the end, you'll have a working Proabono agent that can list all active subscriptions for a customer, create a new subscription for acme corp, show overdue invoices for a specific customer through natural language commands.
This guide will help you understand how to give your Vercel AI SDK agent real control over a Proabono account through Composio's Proabono MCP server.
Before we dive in, let's take a quick look at the key ideas and tools involved.

## Also integrate Proabono with

- [OpenAI Agents SDK](https://composio.dev/toolkits/proabono/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/proabono/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/proabono/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/proabono/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/proabono/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/proabono/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/proabono/framework/hermes-agent)
- [CLI](https://composio.dev/toolkits/proabono/framework/cli)
- [Google ADK](https://composio.dev/toolkits/proabono/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/proabono/framework/langchain)
- [Mastra AI](https://composio.dev/toolkits/proabono/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/proabono/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/proabono/framework/crew-ai)

## TL;DR

Here's what you'll learn:
- How to set up and configure a Vercel AI SDK agent with Proabono integration
- Using Composio's Tool Router to dynamically load and access Proabono tools
- Creating an MCP client connection using HTTP transport
- Building an interactive CLI chat interface with conversation history management
- Handling tool calls and results within the Vercel AI SDK framework

## What is Vercel AI SDK?

The Vercel AI SDK is a TypeScript library for building AI-powered applications. It provides tools for creating agents that can use external services and maintain conversation state.
Key features include:
- streamText: Core function for streaming responses with real-time tool support
- MCP Client: Built-in support for Model Context Protocol via @ai-sdk/mcp
- Step Counting: Control multi-step tool execution with stopWhen: stepCountIs()
- OpenAI Provider: Native integration with OpenAI models

## What is the Proabono MCP server, and what's possible with it?

The Proabono MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Proabono account. It provides structured and secure access so your agent can perform Proabono operations on your behalf.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `PROABONO_ANONYMIZE_CUSTOMER` | Anonymize Customer | Tool to anonymize a customer for GDPR compliance. Use when you need to permanently remove personal data from a customer record while maintaining the account structure. The customer must have no active subscriptions, all invoices must be settled, and the balance must be empty before anonymization. |
| `PROABONO_BILL_CUSTOMER` | Bill Customer | Tool to trigger billing for a customer. Use when you need to create invoices for pending charges for a specific customer. |
| `PROABONO_CREATE_CUSTOMER` | Create Customer | Tool to create or declare a customer in ProAbono via the Backoffice API. Use when you need to register a new customer with billing and subscription management capabilities. |
| `PROABONO_CREATE_FEATURE` | Create Feature | Tool to create a new feature in ProAbono via the Backoffice API. Features define capabilities or usage limits that can be attached to offers. Use when you need to define a new feature (OnOff, Limitation, or Consumption type) for your subscription plans. |
| `PROABONO_DELETE_CUSTOMER` | Delete Customer | Tool to delete a customer from ProAbono by ID. Use when you need to remove a customer record from the system. |
| `PROABONO_DELETE_OFFER` | Delete Offer | Tool to delete an offer from ProAbono by ID. Use when you need to permanently remove an offer from the system. |
| `PROABONO_DELETE_PRICING_TABLE` | Delete Pricing Table | Tool to delete a pricing table from ProAbono by its ID. Use when you need to remove a pricing table from the system. |
| `PROABONO_DELETE_PRICING_TABLE_OFFER` | Delete Pricing Table Offer | Tool to delete a pricing table offer via the ProAbono Backoffice API. Use when you need to remove an existing pricing table offer by its ID. |
| `PROABONO_DELETE_SUBSCRIPTION_DISCOUNT` | Delete Subscription Discount | Tool to delete a subscription discount via the Backoffice API. Use when you need to remove a discount from a subscription after confirming its ID. |
| `PROABONO_ENABLE_WEBHOOK` | Enable Webhook | Tool to enable a webhook in ProAbono via the Notification API. Use when you need to activate a previously disabled webhook for receiving event notifications. |
| `PROABONO_GET_CUSTOMER_BY_ID` | Get Customer by ID | Tool to retrieve a single customer by ID from ProAbono Backoffice API. Use when you need to fetch detailed information about a specific customer including their billing details, status, and related resource links. |
| `PROABONO_GET_CUSTOMER_BILLING_ADDRESS` | Get Customer Billing Address | Tool to retrieve a customer's billing address via the Backoffice API. Use when you need to fetch billing information including company name, contact details, address lines, and tax information for a specific customer. |
| `PROABONO_GET_CUSTOMER_BILLING_ADDRESS_BY_REFERENCE` | Get Customer Billing Address by Reference | Tool to retrieve the billing address for a customer by reference from ProAbono API. Use when you need to fetch billing address details including company, contact information, address lines, and tax information using the customer's reference identifier. |
| `PROABONO_GET_CUSTOMER_BY_REFERENCE` | Get Customer by Reference | Tool to retrieve a customer by their reference identifier from ProAbono API. Use when you need to fetch customer details using the unique reference identifier from your own application rather than the ProAbono internal ID. |
| `PROABONO_GET_CUSTOMER_PAYMENT_SETTINGS` | Get Customer Payment Settings | Tool to retrieve customer payment settings via the Backoffice API. Use when you need to check a customer's payment configuration, billing schedule, or payment method type. |
| `PROABONO_GET_DISCOUNT` | Get Discount | Tool to retrieve a discount by ID via the Backoffice API. Use when you need to fetch details of a specific discount including its amount, type, target fees, and state. |
| `PROABONO_GET_FEATURE_BY_ID` | Get Feature by ID | Tool to retrieve a feature by ID from ProAbono Backoffice API. Use when you need to fetch details about a specific feature. |
| `PROABONO_GET_FEATURE_BY_REFERENCE` | Get Feature by Reference | Tool to retrieve a single feature by its reference from ProAbono API. Use when you need to fetch details about a specific feature using its unique reference identifier. |
| `PROABONO_GET_INVOICE` | Get Invoice | Tool to retrieve a specific invoice or credit note by ID from ProAbono. Use when you need to fetch detailed information about an invoice. |
| `PROABONO_GET_OFFER_BY_ID` | Get Offer by ID | Tool to retrieve a single offer by its ID from ProAbono Backoffice API. Use when you need to fetch detailed information about a specific offer. |
| `PROABONO_GET_SUBSCRIPTION_BY_CUSTOMER_REFERENCE` | Get Subscription by Customer Reference | Tool to retrieve a subscription by customer reference from ProAbono. Use when you need to fetch subscription details for a specific customer using their reference key. |
| `PROABONO_GET_SUBSCRIPTION_CREATION_QUOTE` | Get Subscription Creation Quote | Tool to get a pricing quote for creating a new subscription without actually creating it. Use when you need to calculate the cost of a subscription before committing to its creation. |
| `PROABONO_GET_USAGE_RECORD` | Get Usage Record | Tool to retrieve a single usage record for a specific feature and customer combination from ProAbono. Use when you need to check current usage status, remaining quota, or feature availability for a customer. The response varies based on feature type: OnOff features return IsIncluded/IsEnabled, while Limitation and Consumption features return quantity information. |
| `PROABONO_GET_USAGES_FOR_CUSTOMER` | Get Usages for Customer | Tool to retrieve usage data for customers from ProAbono. Use when you need to fetch feature usage information including OnOff, Limitation, and Consumption features. Parameters can be combined to filter results by customer reference, customer ID, or subscription ID. |
| `PROABONO_INVALIDATE_CUSTOMER` | Invalidate Customer | Tool to invalidate a customer by their reference. Use when you need to revoke a customer's access to subscribed services while keeping the account record. |
| `PROABONO_INVALIDATE_CUSTOMER_BY_ID` | Invalidate Customer by ID | Tool to invalidate a customer by their ProAbono internal ID. Use when you need to free up a customer reference for reuse. This operation replaces the customer's ReferenceCustomer with a new value and regenerates all encrypted portal links. |
| `PROABONO_LIST_BALANCE_LINES` | List Balance Lines | Tool to list all balance lines from ProAbono. Use when you need to retrieve one-time charges or credits associated with a customer or subscription. Either ReferenceCustomer or IdSubscription parameter is required. |
| `PROABONO_LIST_BUSINESSES` | List Businesses | Tool to list all businesses from ProAbono via the Backoffice API. Use when you need to retrieve business information with optional filtering by state or update date. |
| `PROABONO_LIST_BUSINESS_LOCALIZATION` | List Business Localization | Tool to list localization entries by business from ProAbono via the HostedPages API. Use when you need to retrieve customizable text, HTML, or URL content for hosted pages with optional filtering by language, customization status, content, or code keywords. Returns paginated results with localization details. |
| `PROABONO_LIST_CUSTOMER_MOVES` | List Customer Moves | Tool to list all customer balance moves via the ProAbono Backoffice API. Use when you need to retrieve balance transactions, credits, debits, or billing movements for customers. Supports filtering by customer, billing status, and date range with pagination. |
| `PROABONO_LIST_CUSTOMERS` | List Customers | Tool to list all customers from ProAbono via the Backoffice API. Use when you need to retrieve customer information with optional filtering by business, state, language, or creation date. Returns paginated results with customer details including ID, name, email, and status. |
| `PROABONO_LIST_CUSTOMERS_BY_FEATURE` | List Customers by Feature | Tool to list customers that have access to a specific feature via the ProAbono API. Use when you need to identify which customers have subscriptions containing a particular feature. Returns feature-specific details including quota usage and billing period information. Note: Returns HTTP 204 (No Content) when no customers match the feature filter. |
| `PROABONO_LIST_DISCOUNTS` | List Discounts | Tool to list all discounts from ProAbono's Backoffice API. Use when you need to retrieve discounts for a business, optionally filtering by state (Enabled/Draft). |
| `PROABONO_LIST_FEATURES` | List Features | Tool to list all features via the ProAbono Backoffice API. Use when you need to retrieve features with optional filtering by business ID, lifecycle state, visibility, or creation date. Returns a paginated collection of feature objects. |
| `PROABONO_LIST_FEATURES_V1` | List Features (V1) | Tool to retrieve all features from ProAbono API using the /v1/Features endpoint. Use when you need to get a list of all available features, optionally filtered by business ID. |
| `PROABONO_LIST_GATEWAY_ACCOUNTS` | List Gateway Accounts | Tool to list payment gateway accounts from ProAbono Backoffice API. Use when you need to retrieve gateway account information with optional filtering by business, currency, real money mode, or creation date. Returns paginated results with account details including ID, name, type, and state. |
| `PROABONO_LIST_GATEWAY_PERMISSIONS` | List Gateway Permissions | Tool to list gateway permissions from ProAbono API. Use when you need to retrieve payment permissions with optional filtering by business, customer, or creation date. |
| `PROABONO_LIST_GATEWAY_REQUESTS` | List Gateway Requests | Tool to list gateway requests from ProAbono. Use when you need to retrieve payment gateway request history with optional filtering by account, permission, transaction, dates, or request state. Returns paginated results with detailed information about each gateway request including status, amount, and timing. |
| `PROABONO_LIST_GATEWAY_TRANSACTIONS` | List Gateway Transactions | Tool to list gateway transactions from ProAbono. Use when you need to retrieve payment gateway transaction records with optional filtering by business, customer, or update date. Returns paginated results with transaction details including status, amount, and payment type. |
| `PROABONO_LIST_INVOICE_LINES` | List Invoice Lines | Tool to list all invoice lines from ProAbono via the Backoffice API. Use when you need to retrieve invoice line items with optional filtering by business, invoice, or minimum amount. |
| `PROABONO_LIST_INVOICES_AND_CREDIT_NOTES` | List Invoices and Credit Notes | Tool to list all invoices and credit notes from ProAbono Backoffice API. Use when you need to retrieve invoice data with optional filtering by business, payment state, or date range. Supports pagination for large result sets. |
| `PROABONO_LIST_INVOICES_BY_CUSTOMER_REFERENCE` | List Invoices by Customer Reference | Tool to list invoices for a specific customer by their reference identifier from ProAbono API. Use when you need to retrieve all invoices associated with a particular customer using their unique reference from your application. |
| `PROABONO_LIST_OFFERS` | List Offers | Tool to list all subscription offers (plans) from ProAbono Backoffice API. Use when you need to retrieve available offers with optional filtering by business, state, visibility, or update date. |
| `PROABONO_LIST_PAYMENTS` | List Payments | Tool to list all payments from ProAbono Backoffice API. Use when you need to retrieve payments with optional filters by business, customer, or update date. |
| `PROABONO_LIST_PRICING_TABLE_OFFERS` | List Pricing Table Offers | Tool to list all pricing table offers via the ProAbono Backoffice API. Use when you need to retrieve all offers configured in pricing tables for a specific business. |
| `PROABONO_LIST_PRICING_TABLES` | List Pricing Tables | Tool to list all pricing tables from ProAbono Backoffice API. Use when you need to retrieve pricing tables with optional filtering by business ID, visibility, or creation date. |
| `PROABONO_LIST_SEGMENT_LOCALIZATIONS` | List Segment Localizations | Tool to list localization entries by segment from ProAbono Backoffice API. Use when you need to retrieve hosted page localizations for a specific segment with optional filtering by language, custom status, content, or code. |
| `PROABONO_LIST_SEGMENTS` | List Segments | Tool to list all segments from ProAbono via the Backoffice API. Use when you need to retrieve segments with optional filtering by business ID or currency. Returns a paginated collection of segment objects including configuration details, hosts, and navigation links. |
| `PROABONO_LIST_SUBSCRIPTION_DISCOUNTS` | List Subscription Discounts | Tool to list all subscription discounts via the ProAbono Backoffice API. Use when you need to retrieve discounts applied to subscriptions for a specific business. Returns paginated results with discount details including IDs, creation/update timestamps, and associated subscription and discount references. |
| `PROABONO_LIST_SUBSCRIPTION_FEATURES` | List Subscription Features | Tool to list all subscription features via the ProAbono Backoffice API. Use when you need to retrieve subscription features with optional filtering by Business ID, Feature ID, or minimum update date. |
| `PROABONO_LIST_SUBSCRIPTION_PERIODS` | List Subscription Periods | Tool to list all subscription periods (billing cycles) from ProAbono Backoffice API. Use when you need to retrieve subscription period information with optional filtering by business ID, subscription ID, or start date. Supports pagination for large result sets. |
| `PROABONO_LIST_SUBSCRIPTIONS` | List Subscriptions | Tool to list all subscriptions from ProAbono via the Backoffice API. Use when you need to retrieve subscription information with optional filtering by business, state, or start date. Returns paginated results with subscription details including customer, offer, dates, and status. |
| `PROABONO_LIST_SUBSCRIPTIONS_V1` | List Subscriptions (V1) | Tool to retrieve all subscriptions from ProAbono API using the /v1/Subscriptions endpoint. Use when you need to get a paginated list of all subscriptions, optionally filtered by business ID. |
| `PROABONO_LIST_TAX_PROFILE_EXCEPTIONS` | List Tax Profile Exceptions | Tool to list tax profile exceptions from ProAbono Organization API. Use when you need to retrieve tax exceptions with optional filtering by business, tax profile, country, or region. Returns a paginated collection of tax exception records including rates, geographic scope, and applicability. |
| `PROABONO_LIST_TAX_PROFILES` | List Tax Profiles | Tool to list all tax profiles from ProAbono via the Backoffice API. Use when you need to retrieve tax configurations with optional filtering by business ID. Returns a paginated collection of tax profile objects with rates and settings. |
| `PROABONO_LIST_UPGRADE_OFFERS` | List Upgrade Offers | Tool to retrieve offers available to upgrade an existing customer subscription. Use when you need to show upgrade options to a customer based on their current subscription status. |
| `PROABONO_LIST_WEBHOOK_NOTIFICATIONS` | List Webhook Notifications | Tool to list webhook notifications from ProAbono via the Notification API. Use when you need to retrieve webhook notification history with optional filtering by business, segment, date range, state, or webhook ID. Returns paginated results with notification details including sending status and related resources. |
| `PROABONO_LIST_WEBHOOKS` | List Webhooks | Tool to list webhooks from ProAbono Notification API. Use when you need to retrieve configured webhooks with optional filtering by creation date, update date, or state. |
| `PROABONO_QUOTE_BALANCE_LINE_CREATION` | Quote Balance Line Creation | Tool to get a pricing quote for creating a balance line (one-time charge or credit). Use when you need to calculate the total amount including taxes before creating a balance line for a customer. |
| `PROABONO_REVOKE_CUSTOMER_PORTAL_LINKS` | Revoke Customer Portal Links | Tool to revoke encrypted customer portal links and generate new ones in ProAbono. Use when you need to invalidate previously generated customer portal links for security purposes (e.g., after a potential link compromise or as part of security best practices). |
| `PROABONO_UPDATE_BUSINESS_BILLING_ADDRESS` | Update Business Billing Address | Tool to update business billing address via the Backoffice API. Use when you need to modify billing information including company name, contact details, address lines, and tax information for a specific business. |
| `PROABONO_UPDATE_CUSTOMER` | Update Customer | Tool to update an existing customer in ProAbono via the Backoffice API. Use when you need to modify customer properties such as name, email, or language preferences. Allows partial updates. |
| `PROABONO_UPDATE_CUSTOMER_BILLING_ADDRESS` | Update Customer Billing Address | Tool to update the billing address for a customer in ProAbono via the API. Use when you need to modify billing address information including company name, contact details, address lines, and tax information. Once updated, ProAbono will use this information for future invoices. |
| `PROABONO_UPDATE_CUSTOMER_PAYMENT_SETTINGS` | Update Customer Payment Settings | Tool to update payment settings for a specific customer in ProAbono. Use when you need to set a customer's payment method preference or update their billing configuration. |
| `PROABONO_UPDATE_CUSTOMER_SHIPPING_ADDRESS` | Update Customer Shipping Address | Tool to update customer shipping address via the Backoffice API. Use when you need to modify shipping information including company name, contact details, address lines, and tax information for a specific customer. |
| `PROABONO_UPDATE_FEATURE` | Update Feature | Tool to update an existing feature in ProAbono via the Backoffice API. Use when you need to modify feature properties such as name, visibility, type, or display order. |
| `PROABONO_UPDATE_TAX_PROFILES` | Update Tax Profiles | Tool to update an existing tax profile in ProAbono via the Backoffice API. Use when you need to modify tax profile properties such as name, description, label, or tax rates. |

## Supported Triggers

None listed.

## Creating MCP Server - Stand-alone vs Composio SDK

The Proabono MCP server is an implementation of the Model Context Protocol that connects your AI agent to Proabono. It provides structured and secure access so your agent can perform Proabono operations on your behalf through a secure, permission-based interface.
With Composio's managed implementation, you don't have to create your own developer app. For production, if you're building an end product, we recommend using your own credentials. The managed server helps you prototype fast and go from 0-1 faster.

## Step-by-step Guide

### 1. Prerequisites

Before you begin, make sure you have:
- Node.js and npm installed
- A Composio account with API key
- An OpenAI API key

### 1. Getting API Keys for OpenAI and Composio

OpenAI API Key
- Go to the [OpenAI dashboard](https://platform.openai.com/settings/organization/api-keys) and create an API key. You'll need credits to use the models, or you can connect to another model provider.
- Keep the API key safe.
Composio API Key
- Log in to the [Composio dashboard](https://dashboard.composio.dev?utm_source=toolkits&utm_medium=framework_docs).
- Navigate to your API settings and generate a new API key.
- Store this key securely as you'll need it for authentication.

### 2. Install required dependencies

First, install the necessary packages for your project.
What you're installing:
- @ai-sdk/openai: Vercel AI SDK's OpenAI provider
- @ai-sdk/mcp: MCP client for Vercel AI SDK
- @composio/core: Composio SDK for tool integration
- ai: Core Vercel AI SDK
- dotenv: Environment variable management
```bash
npm install @ai-sdk/openai @ai-sdk/mcp @composio/core ai dotenv
```

### 3. Set up environment variables

Create a .env file in your project root.
What's needed:
- OPENAI_API_KEY: Your OpenAI API key for GPT model access
- COMPOSIO_API_KEY: Your Composio API key for tool access
- COMPOSIO_USER_ID: A unique identifier for the user session
```bash
OPENAI_API_KEY=your_openai_api_key_here
COMPOSIO_API_KEY=your_composio_api_key_here
COMPOSIO_USER_ID=your_user_id_here
```

### 4. Import required modules and validate environment

What's happening:
- We're importing all necessary libraries including Vercel AI SDK's OpenAI provider and Composio
- The dotenv/config import automatically loads environment variables
- The MCP client import enables connection to Composio's tool server
```typescript
import "dotenv/config";
import { openai } from "@ai-sdk/openai";
import { Composio } from "@composio/core";
import * as readline from "readline";
import { streamText, type ModelMessage, stepCountIs } from "ai";
import { createMCPClient } from "@ai-sdk/mcp";

const composioAPIKey = process.env.COMPOSIO_API_KEY;
const composioUserID = process.env.COMPOSIO_USER_ID;

if (!process.env.OPENAI_API_KEY) throw new Error("OPENAI_API_KEY is not set");
if (!composioAPIKey) throw new Error("COMPOSIO_API_KEY is not set");
if (!composioUserID) throw new Error("COMPOSIO_USER_ID is not set");

const composio = new Composio({
  apiKey: composioAPIKey,
});
```

### 5. Create Tool Router session and initialize MCP client

What's happening:
- We're creating a Tool Router session that gives your agent access to Proabono tools
- The create method takes the user ID and specifies which toolkits should be available
- The returned mcp object contains the URL and authentication headers needed to connect to the MCP server
- This session provides access to all Proabono-related tools through the MCP protocol
```typescript
async function main() {
  // Create a tool router session for the user
  const session = await composio.create(composioUserID!, {
    toolkits: ["proabono"],
  });

  const mcpUrl = session.mcp.url;
```

### 6. Connect to MCP server and retrieve tools

What's happening:
- We're creating an MCP client that connects to our Composio Tool Router session via HTTP
- The mcp.url provides the endpoint, and mcp.headers contains authentication credentials
- The type: "http" is important - Composio requires HTTP transport
- tools() retrieves all available Proabono tools that the agent can use
```typescript
const mcpClient = await createMCPClient({
  transport: {
    type: "http",
    url: mcpUrl,
    headers: session.mcp.headers, // Authentication headers for the Composio MCP server
  },
});

const tools = await mcpClient.tools();
```

### 7. Initialize conversation and CLI interface

What's happening:
- We initialize an empty messages array to maintain conversation history
- A readline interface is created to accept user input from the command line
- Instructions are displayed to guide the user on how to interact with the agent
```typescript
let messages: ModelMessage[] = [];

console.log("Chat started! Type 'exit' or 'quit' to end the conversation.\n");
console.log(
  "Ask any questions related to proabono, like summarize my last 5 emails, send an email, etc... :)))\n",
);

const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
  prompt: "> ",
});

rl.prompt();
```

### 8. Handle user input and stream responses with real-time tool feedback

What's happening:
- We use streamText instead of generateText to stream responses in real-time
- toolChoice: "auto" allows the model to decide when to use Proabono tools
- stopWhen: stepCountIs(10) allows up to 10 steps for complex multi-tool operations
- onStepFinish callback displays which tools are being used in real-time
- We iterate through the text stream to create a typewriter effect as the agent responds
- The complete response is added to conversation history to maintain context
- Errors are caught and displayed with helpful retry suggestions
```typescript
rl.on("line", async (userInput: string) => {
  const trimmedInput = userInput.trim();

  if (["exit", "quit", "bye"].includes(trimmedInput.toLowerCase())) {
    console.log("\nGoodbye!");
    rl.close();
    process.exit(0);
  }

  if (!trimmedInput) {
    rl.prompt();
    return;
  }

  messages.push({ role: "user", content: trimmedInput });
  console.log("\nAgent is thinking...\n");

  try {
    const stream = streamText({
      model: openai("gpt-5"),
      messages,
      tools,
      toolChoice: "auto",
      stopWhen: stepCountIs(10),
      onStepFinish: (step) => {
        for (const toolCall of step.toolCalls) {
          console.log(`[Using tool: ${toolCall.toolName}]`);
          }
          if (step.toolCalls.length > 0) {
            console.log(""); // Add space after tool calls
          }
        },
      });

      for await (const chunk of stream.textStream) {
        process.stdout.write(chunk);
      }

      console.log("\n\n---\n");

      // Get final result for message history
      const response = await stream.response;
      if (response?.messages?.length) {
        messages.push(...response.messages);
      }
    } catch (error) {
      console.error("\nAn error occurred while talking to the agent:");
      console.error(error);
      console.log(
        "\nYou can try again or restart the app if it keeps happening.\n",
      );
    } finally {
      rl.prompt();
    }
  });

  rl.on("close", async () => {
    await mcpClient.close();
    console.log("\n👋 Session ended.");
    process.exit(0);
  });
}

main().catch((err) => {
  console.error("Fatal error:", err);
  process.exit(1);
});
```

## Complete Code

```typescript
import "dotenv/config";
import { openai } from "@ai-sdk/openai";
import { Composio } from "@composio/core";
import * as readline from "readline";
import { streamText, type ModelMessage, stepCountIs } from "ai";
import { createMCPClient } from "@ai-sdk/mcp";

const composioAPIKey = process.env.COMPOSIO_API_KEY;
const composioUserID = process.env.COMPOSIO_USER_ID;

if (!process.env.OPENAI_API_KEY) throw new Error("OPENAI_API_KEY is not set");
if (!composioAPIKey) throw new Error("COMPOSIO_API_KEY is not set");
if (!composioUserID) throw new Error("COMPOSIO_USER_ID is not set");

const composio = new Composio({
  apiKey: composioAPIKey,
});

async function main() {
  // Create a tool router session for the user
  const session = await composio.create(composioUserID!, {
    toolkits: ["proabono"],
  });

  const mcpUrl = session.mcp.url;

  const mcpClient = await createMCPClient({
    transport: {
      type: "http",
      url: mcpUrl,
      headers: session.mcp.headers, // Authentication headers for the Composio MCP server
    },
  });

  const tools = await mcpClient.tools();

  let messages: ModelMessage[] = [];

  console.log("Chat started! Type 'exit' or 'quit' to end the conversation.\n");
  console.log(
    "Ask any questions related to proabono, like summarize my last 5 emails, send an email, etc... :)))\n",
  );

  const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    prompt: "> ",
  });

  rl.prompt();

  rl.on("line", async (userInput: string) => {
    const trimmedInput = userInput.trim();

    if (["exit", "quit", "bye"].includes(trimmedInput.toLowerCase())) {
      console.log("\nGoodbye!");
      rl.close();
      process.exit(0);
    }

    if (!trimmedInput) {
      rl.prompt();
      return;
    }

    messages.push({ role: "user", content: trimmedInput });
    console.log("\nAgent is thinking...\n");

    try {
      const stream = streamText({
        model: openai("gpt-5"),
        messages,
        tools,
        toolChoice: "auto",
        stopWhen: stepCountIs(10),
        onStepFinish: (step) => {
          for (const toolCall of step.toolCalls) {
            console.log(`[Using tool: ${toolCall.toolName}]`);
          }
          if (step.toolCalls.length > 0) {
            console.log(""); // Add space after tool calls
          }
        },
      });

      for await (const chunk of stream.textStream) {
        process.stdout.write(chunk);
      }

      console.log("\n\n---\n");

      // Get final result for message history
      const response = await stream.response;
      if (response?.messages?.length) {
        messages.push(...response.messages);
      }
    } catch (error) {
      console.error("\nAn error occurred while talking to the agent:");
      console.error(error);
      console.log(
        "\nYou can try again or restart the app if it keeps happening.\n",
      );
    } finally {
      rl.prompt();
    }
  });

  rl.on("close", async () => {
    await mcpClient.close();
    console.log("\n👋 Session ended.");
    process.exit(0);
  });
}

main().catch((err) => {
  console.error("Fatal error:", err);
  process.exit(1);
});
```

## Conclusion

You've successfully built a Proabono agent using the Vercel AI SDK with streaming capabilities! This implementation provides a powerful foundation for building AI applications with natural language interfaces and real-time feedback.
Key features of this implementation:
- Real-time streaming responses for a better user experience with typewriter effect
- Live tool execution feedback showing which tools are being used as the agent works
- Dynamic tool loading through Composio's Tool Router with secure authentication
- Multi-step tool execution with configurable step limits (up to 10 steps)
- Comprehensive error handling for robust agent execution
- Conversation history maintenance for context-aware responses
You can extend this further by adding custom error handling, implementing specific business logic, or integrating additional Composio toolkits to create multi-app workflows.

## How to build Proabono MCP Agent with another framework

- [OpenAI Agents SDK](https://composio.dev/toolkits/proabono/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/proabono/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/proabono/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/proabono/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/proabono/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/proabono/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/proabono/framework/hermes-agent)
- [CLI](https://composio.dev/toolkits/proabono/framework/cli)
- [Google ADK](https://composio.dev/toolkits/proabono/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/proabono/framework/langchain)
- [Mastra AI](https://composio.dev/toolkits/proabono/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/proabono/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/proabono/framework/crew-ai)

## Related Toolkits

- [Google Sheets](https://composio.dev/toolkits/googlesheets) - Google Sheets is a cloud-based spreadsheet tool for real-time collaboration and data analysis. It lets teams work together from anywhere, updating information instantly.
- [Notion](https://composio.dev/toolkits/notion) - Notion is a collaborative workspace for notes, docs, wikis, and tasks. It streamlines team knowledge, project tracking, and workflow customization in one place.
- [Airtable](https://composio.dev/toolkits/airtable) - Airtable combines the flexibility of spreadsheets with the power of a database for easy project and data management. Teams use Airtable to organize, track, and collaborate with custom views and automations.
- [Asana](https://composio.dev/toolkits/asana) - Asana is a collaborative work management platform for teams to organize and track projects. It streamlines teamwork, boosts productivity, and keeps everyone aligned on goals.
- [Google Tasks](https://composio.dev/toolkits/googletasks) - Google Tasks is a to-do list and task management tool integrated into Gmail and Google Calendar. It helps you organize, track, and complete tasks across your Google ecosystem.
- [Linear](https://composio.dev/toolkits/linear) - Linear is a modern issue tracking and project planning tool for fast-moving teams. It helps streamline workflows, organize projects, and boost productivity.
- [Jira](https://composio.dev/toolkits/jira) - Jira is Atlassian’s platform for bug tracking, issue tracking, and agile project management. It helps teams organize work, prioritize tasks, and deliver projects efficiently.
- [Clickup](https://composio.dev/toolkits/clickup) - ClickUp is an all-in-one productivity platform for managing tasks, docs, goals, and team collaboration. It streamlines project workflows so teams can work smarter and stay organized in one place.
- [Monday](https://composio.dev/toolkits/monday) - Monday.com is a customizable work management platform for project planning and collaboration. It helps teams organize tasks, automate workflows, and track progress in real time.
- [Addressfinder](https://composio.dev/toolkits/addressfinder) - Addressfinder is a data quality platform for verifying addresses, emails, and phone numbers. It helps you ensure accurate customer and contact data every time.
- [Agiled](https://composio.dev/toolkits/agiled) - Agiled is an all-in-one business management platform for CRM, projects, and finance. It helps you streamline workflows, consolidate client data, and manage business processes in one place.
- [Ascora](https://composio.dev/toolkits/ascora) - Ascora is a cloud-based field service management platform for service businesses. It streamlines scheduling, invoicing, and customer operations in one place.
- [Basecamp](https://composio.dev/toolkits/basecamp) - Basecamp is a project management and team collaboration tool by 37signals. It helps teams organize tasks, share files, and communicate efficiently in one place.
- [Beeminder](https://composio.dev/toolkits/beeminder) - Beeminder is an online goal-tracking platform that uses monetary pledges to keep you motivated. Stay accountable and hit your targets with real financial incentives.
- [Boxhero](https://composio.dev/toolkits/boxhero) - Boxhero is a cloud-based inventory management platform for SMBs, offering real-time updates, barcode scanning, and team collaboration. It helps businesses streamline stock tracking and analytics for smarter inventory decisions.
- [Breathe HR](https://composio.dev/toolkits/breathehr) - Breathe HR is cloud-based HR software for SMEs to manage employee data, absences, and performance. It simplifies HR admin, making it easy to keep employee records accurate and up to date.
- [Breeze](https://composio.dev/toolkits/breeze) - Breeze is a project management platform designed to help teams plan, track, and collaborate on projects. It streamlines workflows and keeps everyone on the same page.
- [Bugherd](https://composio.dev/toolkits/bugherd) - Bugherd is a visual feedback and bug tracking tool for websites. It helps teams and clients report website issues directly on live sites for faster fixes.
- [Canny](https://composio.dev/toolkits/canny) - Canny is a platform for managing customer feedback and feature requests. It helps teams prioritize product decisions based on real user insights.
- [Chmeetings](https://composio.dev/toolkits/chmeetings) - Chmeetings is a church management platform for events, members, donations, and volunteers. It streamlines church operations and improves community engagement.

## Frequently Asked Questions

### What are the differences in Tool Router MCP and Proabono MCP?

With a standalone Proabono MCP server, the agents and LLMs can only access a fixed set of Proabono tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Proabono and many other apps based on the task at hand, all through a single MCP endpoint.

### Can I use Tool Router MCP with Vercel AI SDK v6?

Yes, you can. Vercel AI SDK v6 fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Proabono tools.

### Can I manage the permissions and scopes for Proabono while using Tool Router?

Yes, absolutely. You can configure which Proabono scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

### How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Proabono data and credentials are handled as safely as possible.

---
[See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)