How to integrate Celigo MCP with Vercel AI SDK v6

This guide walks you through connecting Celigo to Vercel AI SDK v6 using the Composio tool router. By the end, you'll have a working Celigo agent that can list failed celigo flows today, restart failed netsuite shopify syncs, check recent celigo job errors through natural language commands. This guide will help you understand how to give your Vercel AI SDK agent real control over a Celigo account through Composio's Celigo MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

Celigo logoCeligo
Api Key

Celigo is an integration platform as a service for connecting apps, data, and business workflows. It helps teams automate cross-system processes without building every integration from scratch.

117 Tools

Introduction

This guide walks you through connecting Celigo to Vercel AI SDK v6 using the Composio tool router. By the end, you'll have a working Celigo agent that can list failed celigo flows today, restart failed netsuite shopify syncs, check recent celigo job errors through natural language commands.

This guide will help you understand how to give your Vercel AI SDK agent real control over a Celigo account through Composio's Celigo MCP server.

Before we dive in, let's take a quick look at the key ideas and tools involved.

Also integrate Celigo with

TL;DR

Here's what you'll learn:
  • How to set up and configure a Vercel AI SDK agent with Celigo integration
  • Using Composio's Tool Router to dynamically load and access Celigo 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 Celigo MCP server, and what's possible with it?

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

What is the Composio tool router, and how does it fit here?

What is Composio SDK?

Composio's Composio SDK helps agents find the right tools for a task at runtime. You can plug in multiple toolkits (like Gmail, HubSpot, and GitHub), and the agent will identify the relevant app and action to complete multi-step workflows. This can reduce token usage and improve the reliability of tool calls. Read more here: Getting started with Composio SDK

The tool router generates a secure MCP URL that your agents can access to perform actions.

How the Composio SDK works

The Composio SDK follows a three-phase workflow:

  1. Discovery: Searches for tools matching your task and returns relevant toolkits with their details.
  2. Authentication: Checks for active connections. If missing, creates an auth config and returns a connection URL via Auth Link.
  3. Execution: Executes the action using the authenticated connection.

Step-by-step Guide

Step by step09 STEPS
1

Prerequisites

Before you begin, make sure you have:
  • Node.js and npm installed
  • A Composio account with API key
  • An OpenAI API key
2

Getting API Keys for OpenAI and Composio

OpenAI API Key
  • Go to the OpenAI dashboard 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.
  • Navigate to your API settings and generate a new API key.
  • Store this key securely as you'll need it for authentication.
3

Install required dependencies

bash
npm install @ai-sdk/openai @ai-sdk/mcp @composio/core ai dotenv

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
4

Set up environment variables

bash
OPENAI_API_KEY=your_openai_api_key_here
COMPOSIO_API_KEY=your_composio_api_key_here
COMPOSIO_USER_ID=your_user_id_here

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
5

Import required modules and validate environment

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,
});
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
6

Create Tool Router session and initialize MCP client

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

  const mcpUrl = session.mcp.url;
What's happening:
  • We're creating a Tool Router session that gives your agent access to Celigo 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 Celigo-related tools through the MCP protocol
7

Connect to MCP server and retrieve tools

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();
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 Celigo tools that the agent can use
8

Initialize conversation and CLI interface

typescript
let messages: ModelMessage[] = [];

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

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

rl.prompt();
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
9

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

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);
});
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 Celigo 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

Complete Code

Here's the complete code to get you started with Celigo and Vercel AI SDK:

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: ["celigo"],
  });

  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 celigo, 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 Celigo 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.
TOOLS

Supported Tools

Every Celigo action and event your agent gets out of the box.

Assign Export Error

Tool to assign an export error to a user in Celigo.

Clone Export

Tool to clone a specific export to create a copy.

Clone Flow

Tool to clone a specific flow to create a copy.

Clone Import

Tool to clone a specific import to create a copy with remapped connections.

Clone Integration

Tool to clone a specific integration to create a copy.

Create Connection

Tool to create a new connection in Celigo to store credentials and application access information.

Create Export

Tool to create a new export in Celigo for extracting data from an application.

Create File Definition

Tool to create a file definition in Celigo for defining data file structure and format.

Create Flow

Tool to create a new flow in Celigo that composes export and import components together.

Create iClient

Tool to create a new iClient for SmartConnector authentication in Celigo.

Create Import

Tool to create a new import for inserting data into an application.

Create Integration

Tool to create a new integration in Celigo to group flows together.

Create Integration Revision

Tool to create a snapshot revision of a specific integration.

Create Script

Tool to create a new custom JavaScript script in Celigo for data transformation operations.

Create Tag

Tool to create a new tag in Celigo for organizing and categorizing resources.

Delete All Resource State

Tool to delete all state keys and values stored under a specific resource.

Delete All State

Tool to delete all global state keys and values in Celigo.

Delete Connection

Tool to delete a specific connection in Celigo.

Delete Export

Tool to delete a specific export from Celigo.

Delete Flow

Tool to delete a specific flow from Celigo.

Delete iClient

Tool to delete a specific iClient from Celigo.

Delete Import

Tool to delete a specific import from Celigo integrator.

Delete Integration

Tool to delete a specific integration from Celigo integrator.

Delete Resolved Errors

Tool to delete resolved errors for a specific export in Celigo.

Delete Resource State Value

Tool to delete the resource-specific key and value from state.

Delete Script

Tool to delete a specific script from Celigo.

Delete State Value

Tool to delete the specified state key and its value.

Delete Tag

Tool to delete a specific tag from Celigo integrator.

Delete User

Tool to delete a specific user from your Celigo account.

Evaluate Virtual Import Map

Evaluate the mapping step of a virtual import and return post-mapped records.

Execute Virtual Export

Execute a virtual export using a connection by posting the export model.

Execute Virtual Import

Tool to execute a virtual import by posting import configuration and data to a connection.

Virtual Export with Paging

Tool to execute a virtual export with paging support for Celigo connections.

Generate Structured File

Tool to generate sample EDI data or structured files from input data.

Get Connection by ID

Tool to get a specific connection by its ID.

Get Connection Audit Logs

Tool to retrieve audit logs for a specific connection.

Get Connection Debug Logs

Tool to retrieve debug logs for a connection by its ID.

Get Connection Dependencies

Tool to retrieve all resources using or used by a specific connection.

Get EDI Profiles

Tool to retrieve all EDI profiles for the account.

Get Export

Tool to retrieve a specific export by its ID from Celigo Integrator.

Get Export Audit Log

Tool to retrieve audit logs for a specific export in Celigo.

Get Export Errors

Tool to retrieve all open errors for a specific export within a flow.

Get File Definition

Tool to retrieve a specific file definition by its ID from Celigo Integrator.

Get File Definitions

Tool to retrieve all file definitions from Celigo.

Get Flow by ID

Tool to retrieve a specific Celigo flow by its ID.

Get Flow Audit Logs

Tool to retrieve audit logs for a specific flow.

Get Flow Dependencies

Tool to retrieve all resources using or used by a specific flow.

Get Flow Descendants

Tool to retrieve all descendant resources of a specific flow.

Get Flow Last Export Datetime

Tool to retrieve the last export datetime for a specific Celigo flow.

Get Flow Latest Jobs

Tool to retrieve the latest job executions for a specific flow.

Get Flow Template

Tool to download a Celigo flow as a template.

Get iClient by ID

Tool to get a specific iClient by its ID.

Get Import

Tool to retrieve a specific import by its ID from the Celigo Integrator API.

Get Import Audit Logs

Tool to retrieve audit logs for a specific import.

Get Import Dependencies

Tool to retrieve all resources using or used by a specific import.

Get Integration Audit Logs

Tool to retrieve audit logs for a specific integration.

Get Integration Connections

Tool to retrieve all connections associated with a specific integration.

Get Integration Dependencies

Tool to retrieve all resources using or used by a specific integration.

Get Integration Errors

Tool to retrieve all open errors for a specific integration in Celigo.

Get Integration Exports

Tool to retrieve all exports associated with a specific integration.

Get Integration Flows

Tool to retrieve all flows associated with a specific integration.

Get Integration Imports

Tool to retrieve all imports associated with a specific integration.

Get Integration Template

Tool to download a Celigo integration as a template.

Get Integration Users

Tool to retrieve users associated with a specific integration.

Get Job Errors

Tool to retrieve errors for a specific job in Celigo.

Get Resolved Errors

Tool to retrieve resolved errors for a specific export within a flow in Celigo.

Get Resource State Value

Tool to get the resource-specific value associated with a state key.

Get Script

Tool to retrieve a specific script by its ID from Celigo.

Get Script Logs

Tool to retrieve logs for a specific Celigo script by its ID.

Get State Value

Tool to get the value associated with a specified state key.

Get Tag

Tool to retrieve a specific tag by its ID from Celigo Integrator.

Get Tags

Tool to retrieve all tags from Celigo.

Get Token Info

Tool to retrieve information about the current API token.

Get User Share

Tool to retrieve a specific user share (ashare) by its ID.

Get All Users

Tool to retrieve all users from your Celigo account.

Invite Multiple Users

Tool to invite multiple users to a Celigo account with specified access levels.

Invite User

Tool to invite a user to a Celigo account with specified access levels.

Invoke Import

Tool to trigger/invoke a Celigo import by its ID.

List Audit Logs

Tool to retrieve all audit logs for resource changes.

List Connections

Tool to retrieve all connections in Celigo.

List Exports

Tool to retrieve all exports from Celigo integrator.

List Flows

Tool to retrieve all flows from Celigo.

List iClients

Tool to retrieve all iClients in Celigo.

List Imports

Tool to retrieve all imports from Celigo integrator.

List Integrations

Tool to retrieve all integrations from Celigo.

List Jobs

Fetches one page of jobs from Celigo with optional filters.

List Licenses

Tool to retrieve all SmartConnector licenses in Celigo.

List Resource State

Tool to retrieve all state keys for a specific resource in Celigo.

List State Keys

Tool to retrieve all global state keys from Celigo.

Parse CSV to JSON

Tool to convert CSV data to JSON format using Celigo's CSV parser.

Parse Structured File

Tool to convert EDI or structured file data (delimited or fixed-width) to JSON format.

Parse XML to JSON

Tool to convert XML data to JSON format using Celigo's XML parser processor.

Patch Connection

Tool to update part of a connection using JSON Patch operations (RFC 6902).

Patch Export

Tool to update specific fields of an export using JSON Patch operations.

Patch Flow

Tool to update part of a specific flow using JSON Patch operations (RFC 6902).

Patch iClient

Tool to update part of an iClient using JSON Patch operations (RFC 6902).

Patch Import

Tool to update specific fields of an import using JSON Patch operations.

Patch Integration

Tool to update part of an integration using JSON Patch operations (RFC 6902).

Ping Connection

Test that a specific Celigo connection is operational by pinging it.

Register Connection

Tool to register a connection to an integration in Celigo.

Register Connections Bulk

Tool to register multiple connections to an integration in Celigo at once.

Resolve Errors

Tool to resolve specified errors for an export in Celigo.

Retry Errors

Tool to retry specified errors for an export in Celigo.

Test Virtual Connection

Test a virtual connection where all details are submitted in the POST body but not saved.

Unregister Connection from Integration

Tool to unregister a connection from an integration in Celigo.

Update Connection

Tool to update a connection's configuration or credentials in Celigo.

Update Export

Tool to update an existing export configuration in Celigo.

Update Flow

Tool to update a specific flow's configuration in Celigo.

Update Flow Error Tags

Tool to update error tags for a specific flow export in Celigo.

Update iClient

Tool to update a specific iClient's configuration in Celigo.

Update Import

Tool to update a specific import's configuration in Celigo.

Update Integration

Tool to update a specific integration's configuration in Celigo.

Update Resource State Value

Tool to create or update the resource-specific state value for any Celigo resource type.

Update Script

Tool to update a specific script's code or configuration in Celigo.

Update State Value

Tool to create or update the value associated with a specified state key.

Update Tag

Tool to update a tag's name in Celigo.

Update User

Tool to update a specific user's account in Celigo.

FAQ

Frequently asked questions

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

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 Celigo tools.

Yes, absolutely. You can configure which Celigo 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.

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 Celigo data and credentials are handled as safely as possible.

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