Attio with Mastra AI

How to integrate Attio MCP with Mastra AI

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Introduction Also integrate Attio with TL;DR What is Mastra AI What is the Attio MCP server Supported Tools & Triggers Creating MCP Server - Stand-alone vs Composio SDK Step-by-step Guide Complete Code Conclusion How to build Attio MCP Agent with another framework Explore Other Toolkits FAQ

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Introduction

This guide walks you through connecting Attio to Mastra AI using the Composio tool router. By the end, you'll have a working Attio agent that can add a meeting note to john smith’s record, find all companies added this week, list recent notes for acme corp through natural language commands.

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

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

Also integrate Attio with

ChatGPT Antigravity OpenAI Agents SDK Claude Agent SDK Claude Code Claude Cowork Codex OpenCode Cursor VS Code OpenClaw Hermes CLI Google ADK LangChain Vercel AI SDK LlamaIndex CrewAI

TL;DR

Here's what you'll learn:

Set up your environment so Mastra, OpenAI, and Composio work together
Create a Tool Router session in Composio that exposes Attio tools
Connect Mastra's MCP client to the Composio generated MCP URL
Fetch Attio tool definitions and attach them as a toolset
Build a Mastra agent that can reason, call tools, and return structured results
Run an interactive CLI where you can chat with your Attio agent

What is Mastra AI?

Mastra AI is a TypeScript framework for building AI agents with tool support. It provides a clean API for creating agents that can use external services through MCP.

Key features include:

MCP Client: Built-in support for Model Context Protocol servers
Toolsets: Organize tools into logical groups
Step Callbacks: Monitor and debug agent execution
OpenAI Integration: Works with OpenAI models via @ai-sdk/openai

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

The Attio MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Attio account. It provides structured and secure access to your team’s relationship and workflow data, so your agent can perform actions like creating records, managing notes, searching your CRM, and organizing lists on your behalf.

Automated record management: Effortlessly create, update, or permanently delete records for people, companies, deals, and more in your Attio workspace.
Smart note taking and retrieval: Let your agent create, list, or delete notes attached to any record, keeping important context and meeting details organized for your team.
Powerful object and list navigation: Retrieve and explore all available objects or lists within your workspace, making it easy for your AI to understand and organize your CRM structure.
Advanced record search and filtering: Find specific CRM records either by unique ID or by searching with custom attributes, ensuring your agent surfaces the right data when you need it.
Comprehensive workspace insight: Get detailed information about object types and their attributes, so your AI-powered workflows always use the right fields and relationships.

Supported Tools & Triggers

Tools

Assert Company (Create or Update)Creates or updates a company record in Attio using a unique attribute to search for existing companies.

Assert Person RecordTool to create or update person records using a unique attribute to search for existing people.

Assert User Record (Create or Update)Creates or updates a user record in Attio using a unique attribute to search for existing users.

Assert Workspace (Create or Update)Creates or updates a workspace record in Attio using a unique attribute to search for existing workspaces.

Create AttributeTool to create a new attribute on an object or list in Attio.

Create CommentTool to create a new comment on a thread, record, or list entry in Attio.

Create CompanyCreates a new company record in Attio.

Create Deal RecordTool to create a new deal record in Attio.

Create ListTool to create a new list in Attio.

Create NoteThis tool creates a new note on a given record in Attio.

Create ObjectTool to create a new custom object in your Attio workspace.

Create PersonCreates a new person record in Attio.

Create RecordThis tool creates a new record in Attio for a specified object type (people, companies, deals, users, workspaces, etc.

Create Select OptionTool to add a new select option to a select or multiselect attribute in Attio.

Create StatusTool to add a new status to a status attribute on either an object or a list.

Create TaskTool to create a new task in Attio.

Create User RecordCreates a new user record in Attio.

Create WebhookTool to create a webhook and subscribe to events in Attio.

Create Workspace RecordCreates a new workspace record in Attio.

Delete CommentTool to delete a comment by its comment_id.

Delete CompanyTool to delete a company record from Attio by its record_id.

Delete DealTool to delete a deal record from Attio by its record_id.

Delete List EntryTool to delete a single list entry by its entry_id in Attio.

Delete NoteThis tool allows users to delete a specific note in Attio by its ID.

Delete PersonTool to delete a person record from Attio by its record_id.

Delete RecordThis tool allows you to delete a record from Attio permanently.

Delete TaskTool to delete a task by its task_id.

Delete UserTool to delete a user record from Attio by its record_id.

Delete WebhookTool to delete a webhook by its webhook_id.

Delete Workspace RecordTool to delete a workspace record from Attio by its record_id.

Find RecordThis tool allows users to find a record in Attio by either its unique ID or by searching using unique attributes.

Get Attribute DetailsTool to get information about a single attribute on either an object or a list.

Get CommentTool to get a single comment by its comment_id in Attio.

Get CompanyTool to get a single company record by its record_id in Attio.

Get Deal RecordTool to get a single deal record by its record_id in Attio.

Get ListTool to retrieve details of a single list in your Attio workspace.

Get List EntryTool to get a single list entry by its entry_id.

Get NoteTool to get a single note by its note_id in Attio.

Get ObjectTool to get a single object by its object_id or slug.

List Record EntriesTool to list all entries, across all lists, for which a record is the parent.

Get Current Token InfoTool to identify the current access token, the workspace it is linked to, and any permissions it has.

Get TaskTool to get a single task by its task_id in Attio.

List TasksTool to list all tasks in the workspace.

Get WebhookTool to get a single webhook by its webhook_id in Attio.

Get Workspace MemberTool to get a single workspace member by their workspace_member_id.

Get Workspace RecordTool to get a single workspace record by its record_id.

List Attribute OptionsTool to list all select options for a particular attribute on either an object or a list.

List AttributesTool to list the attribute schema for an Attio object or list (including slugs, types, select/status config) to enable correct filtering and writes.

List Attribute StatusesTool to list all statuses for a particular status attribute on either an object or a list.

List Call RecordingsTool to list all call recordings for a meeting in Attio.

List CompaniesTool to list company records in Attio with optional filtering and sorting.

List Company Attribute ValuesTool to get all values for a given attribute on a company record.

List Company Record EntriesTool to list all entries across all lists for which a company record is the parent in Attio.

List Deal EntriesTool to list all entries across all lists for which a deal record is the parent in Attio.

List Deal Record Attribute ValuesTool to retrieve all values for a specified attribute on a deal record in Attio.

List Deal RecordsTool to list deal records in Attio with the option to filter and sort results.

List List Entry Attribute ValuesTool to retrieve all values for a specified attribute on a list entry in Attio.

List ListsThis tool retrieves all lists available in the Attio workspace, sorted as they appear in the sidebar.

List MeetingsTool to list all meetings in the workspace using a deterministic sort order.

List NotesLists notes in Attio.

List ObjectsThis tool retrieves a list of all available objects (both system-defined and user-defined) in the Attio workspace via GET /v2/objects, returning key metadata including slugs and IDs for each object.

List People Attribute ValuesTool to get all values for a given attribute on a person record.

List People Record EntriesTool to list all entries across all lists for which a person record is the parent in Attio.

List Record Attribute ValuesTool to retrieve all values for a specified attribute on a record in Attio.

List RecordsThis tool lists records from a specific object type in Attio.

List ThreadsTool to list threads of comments on a record or list entry in Attio.

List User Record EntriesTool to list all entries across all lists for which a user record is the parent in Attio.

List User RecordsTool to list user records in Attio with optional filtering and sorting.

List WebhooksTool to get all webhooks in your Attio workspace.

List Workspace MembersTool to list workspace members (actors) so agents can reliably assign owners and resolve workspace-member IDs even when the optional Users standard object is disabled.

List Workspace Record Attribute ValuesTool to retrieve all values for a specified attribute on a workspace record in Attio.

List Workspace Record EntriesTool to list all entries across all lists for which a workspace record is the parent in Attio.

List Workspace RecordsTool to list workspace records with filtering and sorting options.

Patch RecordTool to update people, companies, and other records by record_id using PATCH method.

Update List Entry by Entry IDTool to update list entries by entry_id in Attio.

Get PersonTool to get a single person record by its record_id in Attio.

List Person RecordsTool to list person records from Attio with optional filtering and sorting.

Create List EntryTool to add a record to a list as a new list entry in Attio.

List List EntriesTool to list entries in a given list, with the option to filter and sort results.

List Records with QueryTool to list people, company or other records in Attio with the option to filter and sort results.

Assert List Entry by ParentTool to create or update a list entry for a given parent record in Attio.

Update List Entry by Entry ID (PUT)Tool to update list entries by entry_id in Attio using PUT method.

Assert Record (Create or Update)Tool to create or update people, companies and other records in Attio using a matching attribute.

Put Record (Overwrite)Tool to update people, companies, and other records by record_id using PUT method.

Query RecordsTool to query records for a specific Attio object using server-side filtering operators and sorting.

Search RecordsTool to fuzzy search for records across multiple objects in Attio.

Update AttributeTool to update an existing attribute by its attribute_id or slug.

Update CompanyTool to update a company record in Attio by its record_id.

Update Deal RecordTool to update an existing deal record in Attio by record ID.

Update ListTool to update an existing list in Attio.

Update ObjectTool to update a single object's configuration in Attio.

Update PersonTool to update a person record in Attio by its record_id.

Update RecordThis tool updates an existing record in Attio for a specified object type (people, companies, deals, users, workspaces, etc.

Update Select OptionTool to update an existing select option for a select or multiselect attribute in Attio.

Update StatusTool to update a status on a status attribute on either an object or a list in Attio.

Update TaskTool to update an existing task in Attio by its task_id.

Update User RecordTool to update a user record in Attio by its record_id.

Update WebhookTool to update a webhook's target URL and/or event subscriptions.

Update Workspace RecordTool to update a workspace record by ID using PATCH method.

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:

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

Step-by-step Guide

Prerequisites

Before starting, make sure you have:

Node.js 18 or higher
A Composio account with an active API key
An OpenAI API key
Basic familiarity with TypeScript

Getting API Keys for OpenAI and Composio

OpenAI API Key

Go to the OpenAI dashboard and create an API key.
You need credits or a connected billing setup to use the models.
Store the key somewhere safe.

Composio API Key

Log in to the Composio dashboard.
Go to Settings and copy your API key.
This key lets your Mastra agent talk to Composio and reach Attio through MCP.

Install dependencies

bash

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

Install the required packages.

What's happening:

@composio/core is the Composio SDK for creating MCP sessions
@mastra/core provides the Agent class
@mastra/mcp is Mastra's MCP client
@ai-sdk/openai is the model wrapper for OpenAI
dotenv loads environment variables from .env

Set up environment variables

bash

COMPOSIO_API_KEY=your_composio_api_key_here
COMPOSIO_USER_ID=your_user_id_here
OPENAI_API_KEY=your_openai_api_key_here

Create a .env file in your project root.

What's happening:

COMPOSIO_API_KEY authenticates your requests to Composio
COMPOSIO_USER_ID tells Composio which user this session belongs to
OPENAI_API_KEY lets the Mastra agent call OpenAI models

Import libraries and validate environment

typescript

import "dotenv/config";
import { openai } from "@ai-sdk/openai";
import { Agent } from "@mastra/core/agent";
import { MCPClient } from "@mastra/mcp";
import { Composio } from "@composio/core";
import * as readline from "readline";

import type { AiMessageType } from "@mastra/core/agent";

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

if (!openaiAPIKey) 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 as string,
});

What's happening:

dotenv/config auto loads your .env so process.env.* is available
openai gives you a Mastra compatible model wrapper
Agent is the Mastra agent that will call tools and produce answers
MCPClient connects Mastra to your Composio MCP server
Composio is used to create a Tool Router session

Create a Tool Router session for Attio

typescript

async function main() {
  const session = await composio.create(
    composioUserID as string,
    {
      toolkits: ["attio"],
    },
  );

  const composioMCPUrl = session.mcp.url;
  console.log("Attio MCP URL:", composioMCPUrl);

What's happening:

create spins up a short-lived MCP HTTP endpoint for this user
The toolkits array contains "attio" for Attio access
session.mcp.url is the MCP URL that Mastra's MCPClient will connect to

Configure Mastra MCP client and fetch tools

typescript

const mcpClient = new MCPClient({
    id: composioUserID as string,
    servers: {
      nasdaq: {
        url: new URL(composioMCPUrl),
        requestInit: {
          headers: session.mcp.headers,
        },
      },
    },
    timeout: 30_000,
  });

console.log("Fetching MCP tools from Composio...");
const composioTools = await mcpClient.getTools();
console.log("Number of tools:", Object.keys(composioTools).length);

What's happening:

MCPClient takes an id for this client and a list of MCP servers
The headers property includes the x-api-key for authentication
getTools fetches the tool definitions exposed by the Attio toolkit

Create the Mastra agent

typescript

const agent = new Agent({
    name: "attio-mastra-agent",
    instructions: "You are an AI agent with Attio tools via Composio.",
    model: "openai/gpt-5",
  });

What's happening:

Agent is the core Mastra agent
name is just an identifier for logging and debugging
instructions guide the agent to use tools instead of only answering in natural language
model uses openai("gpt-5") to configure the underlying LLM

Set up interactive chat interface

typescript

let messages: AiMessageType[] = [];

console.log("Chat started! Type 'exit' or 'quit' to end.\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({
    id: crypto.randomUUID(),
    role: "user",
    content: trimmedInput,
  });

  console.log("\nAgent is thinking...\n");

  try {
    const response = await agent.generate(messages, {
      toolsets: {
        attio: composioTools,
      },
      maxSteps: 8,
    });

    const { text } = response;

    if (text && text.trim().length > 0) {
      console.log(`Agent: ${text}\n`);
        messages.push({
          id: crypto.randomUUID(),
          role: "assistant",
          content: text,
        });
      }
    } catch (error) {
      console.error("\nError:", error);
    }

    rl.prompt();
  });

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

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

What's happening:

messages keeps the full conversation history in Mastra's expected format
agent.generate runs the agent with conversation history and Attio toolsets
maxSteps limits how many tool calls the agent can take in a single run
onStepFinish is a hook that prints intermediate steps for debugging

Complete Code

Here's the complete code to get you started with Attio and Mastra AI:

typescript

import "dotenv/config";
import { openai } from "@ai-sdk/openai";
import { Agent } from "@mastra/core/agent";
import { MCPClient } from "@mastra/mcp";
import { Composio } from "@composio/core";
import * as readline from "readline";

import type { AiMessageType } from "@mastra/core/agent";

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

if (!openaiAPIKey) 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 as string });

async function main() {
  const session = await composio.create(composioUserID as string, {
    toolkits: ["attio"],
  });

  const composioMCPUrl = session.mcp.url;

  const mcpClient = new MCPClient({
    id: composioUserID as string,
    servers: {
      attio: {
        url: new URL(composioMCPUrl),
        requestInit: {
          headers: session.mcp.headers,
        },
      },
    },
    timeout: 30_000,
  });

  const composioTools = await mcpClient.getTools();

  const agent = new Agent({
    name: "attio-mastra-agent",
    instructions: "You are an AI agent with Attio tools via Composio.",
    model: "openai/gpt-5",
  });

  let messages: AiMessageType[] = [];

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

  rl.prompt();

  rl.on("line", async (input: string) => {
    const trimmed = input.trim();
    if (["exit", "quit"].includes(trimmed.toLowerCase())) {
      rl.close();
      return;
    }

    messages.push({ id: crypto.randomUUID(), role: "user", content: trimmed });

    const { text } = await agent.generate(messages, {
      toolsets: { attio: composioTools },
      maxSteps: 8,
    });

    if (text) {
      console.log(`Agent: ${text}\n`);
      messages.push({ id: crypto.randomUUID(), role: "assistant", content: text });
    }

    rl.prompt();
  });

  rl.on("close", async () => {
    await mcpClient.disconnect();
    process.exit(0);
  });
}

main();

Conclusion

You've built a Mastra AI agent that can interact with Attio through Composio's Tool Router. You can extend this further by:

Adding other toolkits like Gmail, Slack, or GitHub
Building a web-based chat interface around this agent
Using multiple MCP endpoints to enable cross-app workflows

How to build Attio MCP Agent with another framework

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Claude Cowork

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Codex

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OpenClaw

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Hermes

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CLI

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LangChain

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Vercel AI SDK

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LlamaIndex

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OpenCode

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VS Code

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TOOLKIT MARKETPLACE

FAQ

What are the differences in Tool Router MCP and Attio MCP?

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

Can I use Tool Router MCP with Mastra AI?

Yes, you can. Mastra AI 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 Attio tools.

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

Yes, absolutely. You can configure which Attio 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 Attio data and credentials are handled as safely as possible.

Used by agents from

Never worry about agent reliability

We handle tool reliability, observability, and security so you never have to second-guess an agent action.

Get started for free Get a demo↗

Harsha GaddipatiCo-founder, Slashy

Karan skipped his own birthday party to fix our critical issue. It was 10 pm and he diverted his Waymo to help us instead. This really sets the bar, shows you the commitment you need to have when users rely on your software.

Abhi AryaCo-founder, Opennote

A lot of students tell us that the moment their connected tools start talking to each other inside Opennote feels almost magical. The agent just knows them, and it has immensely helped in keeping new users on the platform.

Nirman DaveCEO, Zams

We chose Composio over Pipedream because it delivered depth where it mattered. It supported niche tools and tricky edge cases that other platforms simply ignored. Giving us confidence to scale without compromising.

Ryan YuFounder, Extra Thursday

As a solo builder, shipping fast is life or death. The only way I can outcompete incumbents is by outmanoeuvring them. Getting bogged down in the complexities of managing agent auth would have been a death sentence for Extra Thursday.

Tomisin JenrolaFounder & CEO, SwarmZero

Before partnering with Composio, adding tool integrations was a slow, resource-intensive process. Each integration could take weeks or months of engineering time, and maintaining them meant constantly keeping up with API changes.

Jerome LeclancheCo-Founder, Ingram Technologies

With hands-on help from their founder, we integrated Gmail and Google Drive in just 30 minutes. This level of personal support and commitment is exactly what startups should strive for.

Harsha GaddipatiCo-founder, Slashy

Abhi AryaCo-founder, Opennote

Nirman DaveCEO, Zams

Ryan YuFounder, Extra Thursday

Tomisin JenrolaFounder & CEO, SwarmZero

Jerome LeclancheCo-Founder, Ingram Technologies

With hands-on help from their founder, we integrated Gmail and Google Drive in just 30 minutes. This level of personal support and commitment is exactly what startups should strive for.

Harsha GaddipatiCo-founder, Slashy

Abhi AryaCo-founder, Opennote

Nirman DaveCEO, Zams

Ryan YuFounder, Extra Thursday

Tomisin JenrolaFounder & CEO, SwarmZero

Jerome LeclancheCo-Founder, Ingram Technologies

With hands-on help from their founder, we integrated Gmail and Google Drive in just 30 minutes. This level of personal support and commitment is exactly what startups should strive for.

How to integrate Attio MCP with Mastra AI

Table of Contents

Connect Attio without Auth hassles

Introduction

Also integrate Attio with

TL;DR

What is Mastra AI?

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

Supported Tools & Triggers

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

What is Composio SDK?

How the Composio SDK works

Step-by-step Guide

Prerequisites

Getting API Keys for OpenAI and Composio

Install dependencies

Set up environment variables

Import libraries and validate environment

Create a Tool Router session for Attio

Configure Mastra MCP client and fetch tools

Create the Mastra agent

Set up interactive chat interface

Complete Code

Conclusion

How to build Attio MCP Agent with another framework

ChatGPT

Antigravity

OpenAI Agents SDK

Claude Agent SDK

Claude Code

Claude Cowork

Codex

Cursor

OpenClaw

Hermes

CLI

Google ADK

LangChain

Vercel AI SDK

LlamaIndex

CrewAI

OpenCode

VS Code

Explore Other Toolkits

Hubspot

Pipedrive

Salesforce

FAQ

What are the differences in Tool Router MCP and Attio MCP?

Can I use Tool Router MCP with Mastra AI?

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

How safe is my data with Composio Tool Router?

Used by agents from

Never worry about agent reliability