# How to integrate Corrently MCP with Vercel AI SDK v6 ```json { "title": "How to integrate Corrently MCP with Vercel AI SDK v6", "toolkit": "Corrently", "toolkit_slug": "corrently", "framework": "Vercel AI SDK", "framework_slug": "ai-sdk", "url": "https://composio.dev/toolkits/corrently/framework/ai-sdk", "markdown_url": "https://composio.dev/toolkits/corrently/framework/ai-sdk.md", "updated_at": "2026-05-12T10:07:39.206Z" } ``` ## Introduction This guide walks you through connecting Corrently to Vercel AI SDK v6 using the Composio tool router. By the end, you'll have a working Corrently agent that can log your household's latest electricity reading, forecast solar output for your address tomorrow, update co₂ meter with last week's consumption through natural language commands. This guide will help you understand how to give your Vercel AI SDK agent real control over a Corrently account through Composio's Corrently MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved. ## Also integrate Corrently with - [OpenAI Agents SDK](https://composio.dev/toolkits/corrently/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/corrently/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/corrently/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/corrently/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/corrently/framework/codex) - [OpenClaw](https://composio.dev/toolkits/corrently/framework/openclaw) - [Hermes](https://composio.dev/toolkits/corrently/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/corrently/framework/cli) - [Google ADK](https://composio.dev/toolkits/corrently/framework/google-adk) - [LangChain](https://composio.dev/toolkits/corrently/framework/langchain) - [Mastra AI](https://composio.dev/toolkits/corrently/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/corrently/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/corrently/framework/crew-ai) ## TL;DR Here's what you'll learn: - How to set up and configure a Vercel AI SDK agent with Corrently integration - Using Composio's Tool Router to dynamically load and access Corrently 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 Corrently MCP server, and what's possible with it? The Corrently MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Corrently account. It provides structured and secure access so your agent can perform Corrently operations on your behalf. ## Supported Tools | Tool slug | Name | Description | |---|---|---| | `CORRENTLY_CO2_METER_UPDATE_READING` | CO₂ Meter Update | Tool to create or update a CO₂ meter reading for emissions tracking. Use when sending new or updated electricity consumption readings to Corrently. | | `CORRENTLY_COMMIT_QUITTUNG` | Commit Strom-Quittung | Tool to finalize a Strom-Quittung (electricity receipt) after collecting transaction data. Use after gathering seller, buyer, and transaction details to create the final receipt. | | `CORRENTLY_GEOCODE_LOCATION` | Geocode Location | Tool to geocode a free-text location into coordinates. Use when you need latitude and longitude from a place name. | | `CORRENTLY_GET_ENERGY_SCHEDULE` | Energy Schedule Computation | Create an optimized operation schedule for energy-consuming devices based on the GrünstromIndex (Green Power Index). This tool determines the best time slots to run energy-intensive devices (heat pumps, EV chargers, etc.) by analyzing regional renewable energy availability, electricity prices, and CO2 emissions forecasts. Use this after collecting: - German postal code (required for regional data) - Desired optimization goal (price, co2, or comfort) - Number of hours the device needs to run | | `CORRENTLY_GET_METERING_READING` | Get Metering Reading | Tool to retrieve metered electricity reading with green/grey energy split and CO2 emissions data. Use when you need to check current meter readings or analyze energy consumption patterns for a Stromkonto. | | `CORRENTLY_GET_STROMKONTO_BALANCES` | Get Stromkonto Balances | Retrieve Stromkonto account balances from the energy blockchain ledger. Stromkonto is a ledger for green energy related transactions backed by Energychain blockchain to provide consensus of balances and transactions. Returns balance details across multiple sub-account types (green power bonus, generation, self-consumption, carbon offset, trees planted). | | `CORRENTLY_GET_STROMKONTO_CHOICES` | Get Stromkonto Choices | Tool to get selectable contract choices for a Stromkonto customer. Use when you need to retrieve available balance and transaction options for an account. | | `CORRENTLY_GET_WIM_PROCESS_STATUS` | Get WiM Process Status | Retrieve status information for WiM (Wechselprozesse im Messwesen) metering change processes. WiM processes handle meter changes and allocation workflows in the German electricity system. Use this tool to check the current status of ongoing or completed metering change processes, track process progress, or verify when a WiM process was initiated. | | `CORRENTLY_GRUNSTROM_INDEX_FORECAST` | GrünstromIndex Forecast | Tool to retrieve hourly green power forecast and CO2 data. Use after obtaining the user API key. | | `CORRENTLY_GSI_BEST_HOUR` | GSI Best Hour | Determines if now is the best time to turn on a device based on regional green energy (GrünstromIndex) forecasts in Germany. Returns true if the current hour has high renewable energy availability within the specified timeframe, false if waiting would be more sustainable. | | `CORRENTLY_LOGIN_STROMKONTO` | Login to Stromkonto | Tool to initiate login to Stromkonto via email. Use when authenticating a user with their email address. | | `CORRENTLY_MARKET_DATA` | Electricity Market Data | Retrieve real-time and forecast electricity pricing data for Germany by postal code (Postleitzahl). Returns wholesale market prices (EUR/MWh) and localized prices for specific grid areas. Data is provided in time intervals with timestamps in milliseconds since Unix epoch. Use this tool when you need current or forecasted electricity prices for energy optimization, cost analysis, or smart grid applications in Germany. | | `CORRENTLY_PHEV_NAVIGATOR` | PHEV Navigator | Tool to get PHEV charge-or-fuel recommendation for German locations. Compares real-time fuel prices at nearby stations with electricity costs to recommend whether charging or fueling is more economical and eco-friendly. Requires a German postal code (PLZ). | | `CORRENTLY_POST_METERING_READING` | Post Metering Reading | Tool to post a meter reading and get it decorated with green/grey energy split. Use when you need to split consumption readings into green power (1.8.1) and grey power (1.8.2) according to the local GreenPowerIndex value. | | `CORRENTLY_PREPARE_RECEIPT_DATA` | Prepare Receipt Data | Tool to collect data for a receipt before finalizing. During the first call, an account parameter will be returned. Use this when you need to incrementally build receipt data through multiple requests. Call without an account parameter first to create a new session, then use the returned account identifier in subsequent calls to add more data. | | `CORRENTLY_PV_GENERATION_GET_FORECAST` | PV Generation Forecast | Get hourly solar PV generation forecasts for a German location. Returns predicted energy output in watt-hours (Wh) for each hour over the specified forecast period. Use this tool when you need to optimize energy scheduling, estimate solar production, or plan energy storage based on expected PV generation. | | `CORRENTLY_REGISTER_STROMKONTO` | Register Stromkonto Account | Tool to register a new Stromkonto energy account in the Corrently system. Use when creating a new account with email, name, and location details. All balances are initialized to zero upon registration. | | `CORRENTLY_RENEWABLE_ENERGY_DISPATCH` | Renewable Energy Dispatch | Tool to get renewable energy flow and mix for a German ZIP code. Use when you need import/export and dispatch sources/destinations breakdown. | | `CORRENTLY_STROMMIX` | Electricity Generation Mix | Tool to retrieve real-time electricity generation mix in Germany. Use when you need the current breakdown of generation by source. | | `CORRENTLY_TARIFF_COMPONENTS` | Tariff Components | Retrieve detailed German electricity tariff cost breakdown by postal code. Returns comprehensive cost components including: - Grundgebühr (base monthly fee) - Arbeitspreis (energy price per kWh) - Network fees (Netznutzungsentgelt) - Taxes (Stromsteuer, Mehrwertsteuer) - Levies (EEG, KWKG, Offshore-Netzumlage) - Renewable energy credits Use this tool to understand electricity pricing transparency in Germany. | | `CORRENTLY_TARIFF_SLPH0` | Standard Load Profile Tariff SLPH0 | Tool to retrieve standard load profile H0 tariff information. Use after providing a German postal code to get local SLPH0 tariffs. | | `CORRENTLY_WEATHER_FORECAST` | Weather Forecast | Tool to retrieve hourly weather forecasts (wind speed and UV index) by geographic coordinates. Use when you need wind and UV data for a specific location. Returns up to 5 days of hourly forecasts. | | `CORRENTLY_WIM_STATUS` | TyDID Consent Status | Check TyDID consent/grant status for an SSI (Self-Sovereign Identity). This tool queries the Corrently TyDID API to verify whether a given Ethereum-based identity has granted consent or if the consent has been revoked. Use cases: - Verify user consent before processing data - Check if a user has revoked access to their data - Monitor consent status changes in blockchain-based identity systems | ## Supported Triggers None listed. ## Creating MCP Server - Stand-alone vs Composio SDK The Corrently MCP server is an implementation of the Model Context Protocol that connects your AI agent to Corrently. It provides structured and secure access so your agent can perform Corrently 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 Corrently 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 Corrently-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: ["corrently"], }); 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 Corrently 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 corrently, 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 Corrently 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: ["corrently"], }); 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 corrently, 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 Corrently 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 Corrently MCP Agent with another framework - [OpenAI Agents SDK](https://composio.dev/toolkits/corrently/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/corrently/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/corrently/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/corrently/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/corrently/framework/codex) - [OpenClaw](https://composio.dev/toolkits/corrently/framework/openclaw) - [Hermes](https://composio.dev/toolkits/corrently/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/corrently/framework/cli) - [Google ADK](https://composio.dev/toolkits/corrently/framework/google-adk) - [LangChain](https://composio.dev/toolkits/corrently/framework/langchain) - [Mastra AI](https://composio.dev/toolkits/corrently/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/corrently/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/corrently/framework/crew-ai) ## Related Toolkits - [Excel](https://composio.dev/toolkits/excel) - Microsoft Excel is a robust spreadsheet application for organizing, analyzing, and visualizing data. 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Get detailed environmental insights directly from your own sensors for smarter apps and automations. - [Anonyflow](https://composio.dev/toolkits/anonyflow) - Anonyflow is a service for encryption-based data anonymization and secure data sharing. It helps organizations meet GDPR, CCPA, and HIPAA data privacy compliance requirements. - [Api ninjas](https://composio.dev/toolkits/api_ninjas) - Api ninjas offers 120+ public APIs spanning categories like weather, finance, sports, and more. Developers use it to supercharge apps with real-time data and actionable endpoints. - [Api sports](https://composio.dev/toolkits/api_sports) - Api sports is a comprehensive sports data platform covering 2,000+ competitions with live scores and 15+ years of stats. Instantly access up-to-date sports information for analysis, apps, or chatbots. - [Apify](https://composio.dev/toolkits/apify) - Apify is a cloud platform for building, deploying, and managing web scraping and automation tools called Actors. It lets you automate data extraction and workflow tasks at scale—no infrastructure headaches. - [Autom](https://composio.dev/toolkits/autom) - Autom is a lightning-fast search engine results data platform for Google, Bing, and Brave. Developers use it to access fresh, low-latency SERP data on demand. - [Beaconchain](https://composio.dev/toolkits/beaconchain) - Beaconchain is a real-time analytics platform for Ethereum 2.0's Beacon Chain. It provides detailed insights into validators, blocks, and overall network performance. - [Big data cloud](https://composio.dev/toolkits/big_data_cloud) - BigDataCloud provides APIs for geolocation, reverse geocoding, and address validation. Instantly access reliable location intelligence to enhance your applications and workflows. - [Bigpicture io](https://composio.dev/toolkits/bigpicture_io) - BigPicture.io offers APIs for accessing detailed company and profile data. Instantly enrich your applications with up-to-date insights on 20M+ businesses. - [Bitquery](https://composio.dev/toolkits/bitquery) - Bitquery is a blockchain data platform offering indexed, real-time, and historical data from 40+ blockchains via GraphQL APIs. Get unified, reliable access to complex on-chain data for analytics, trading, and research. - [Brightdata](https://composio.dev/toolkits/brightdata) - Brightdata is a leading web data platform offering advanced scraping, SERP APIs, and anti-bot tools. It lets you collect public web data at scale, bypassing blocks and friction. - [Builtwith](https://composio.dev/toolkits/builtwith) - BuiltWith is a web technology profiler that uncovers the technologies powering any website. Gain actionable insights into analytics, hosting, and content management stacks for smarter research and lead generation. - [Byteforms](https://composio.dev/toolkits/byteforms) - Byteforms is an all-in-one platform for creating forms, managing submissions, and integrating data. It streamlines workflows by centralizing form data collection and automation. ## Frequently Asked Questions ### What are the differences in Tool Router MCP and Corrently MCP? With a standalone Corrently MCP server, the agents and LLMs can only access a fixed set of Corrently tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Corrently 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 Corrently tools. ### Can I manage the permissions and scopes for Corrently while using Tool Router? Yes, absolutely. You can configure which Corrently 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 Corrently data and credentials are handled as safely as possible. --- [See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)