Composio

Managed integrations and MCP gateway that gives AI agents authenticated tool access.

Hand-reviewed by the Toolglade team·Updated Aug 2026

mcp#mcp#integrations#tool-calling#oauth

Free plan Claimed API Teams

Toolglade’s take

Composio is one of the more mature managed-integration layers for agents, and its OAuth/multi-tenant auth handling genuinely removes painful glue code. The breadth of connectors and framework support is a real strength. The big caveat is pricing: the 2026 shift to usage-based billing produced steep cost jumps at production scale, so model your tool-call volume before adopting. As with everything in MCP, connectors and pricing move fast, so verify current terms with the vendor.

About Composio

Composio is a managed integration and MCP gateway platform that lets AI agents call hundreds of external apps through a unified, authenticated tool layer. It handles OAuth, token storage, and multi-tenant auth so developers avoid building and maintaining integrations. It works with major agent frameworks and LLM providers. In 2026 it moved to usage-based pricing that can get expensive at high volume.

Composio positions itself as the authentication and tool-execution layer for agentic applications. Instead of wiring up each SaaS API and its OAuth flow, developers point their agents at Composio's managed connectors, which expose actions as callable tools over MCP or native SDKs for frameworks like OpenAI, LangChain, and CrewAI. The platform emphasizes reliability features such as managed auth, per-user credential isolation, and observability. The product moved aggressively to a usage-based model in 2026. A hard-capped free tier is aimed at development, with paid tiers billed on executed actions/tool calls. Composio's 2026 pricing change drew criticism for large cost increases at production volume, with existing customers grandfathered through the end of 2026, so teams should model expected call volume carefully before committing.

TL;DR

Composio is a managed integration/MCP gateway that handles OAuth and multi-tenant auth so agents can call hundreds of apps as tools, though 2026 usage pricing can get pricey at scale.

Company overview

Composio is a developer-infrastructure company focused on tool-calling and integrations for AI agents. It provides a hosted platform where connectors, authentication, and tool execution are managed centrally.

The company targets developers and teams building agentic products who don't want to maintain per-app OAuth and integration code, offering both MCP endpoints and native framework SDKs.

Product features

The platform provides a large catalog of app connectors exposed as callable tools, managed OAuth with per-user token isolation, and observability over tool calls. It integrates with major LLM providers and agent frameworks.

MCP support lets any MCP-aware client consume Composio's tools, while SDKs give tighter integration for framework users. Reliability and auth handling are the main differentiators.

Target market

Primarily software teams and developers building production agentic applications, especially multi-tenant SaaS products that need each end user to connect their own accounts securely.

Buyer personas

End users

Developers and AI engineers wiring tools into agents.

Buyers

Engineering leads and CTOs at startups building agent products.

Key influencers

Framework communities (LangChain, CrewAI) and AI infra advocates.

Ideal customer profile

A startup or team shipping a multi-tenant agentic product that needs managed OAuth and broad tool coverage without building integrations in-house.

Funding & performance

Composio is a venture-backed startup; specific round details should be verified, as funding information changes and is not always current in public sources.

Pros & cons

Pros

Handles OAuth and per-user token storage so you don't have to
Large catalog of prebuilt app connectors
Exposes tools over MCP and native framework SDKs
Strong multi-tenant/auth story for production apps
Observability and logging for tool calls
Backed by active development and frequent releases
Startup credits available for early-stage teams

Cons

2026 usage-based pricing can escalate sharply at production volume
Free tier is hard-capped and mainly for development
Hosted-only core; limited self-hosting
Vendor lock-in around the managed auth layer
Connector quality and coverage vary by app
Pricing and terms have changed rapidly

Pricing plans

Free

~20K tool calls/month
Full connector catalog
Managed OAuth
For development/testing

Pro

$29 / month

~200K tool calls/month
Usage-based overages
Observability
Priority features

Enterprise

Custom

Volume discounts
Dedicated support
Custom integrations
Enhanced security

Key features

API

Team collaboration

Multi-language

Integrations

Gmail, Slack, GitHub, Notion, Salesforce, Linear

Input types

text

Output types

text

Best For

Adding authenticated tools to agents, Managing per-user OAuth at scale

Compare key features

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Feature

Composio

Public

Inworld AI

Pricing

Freemium

Free plan

Yes

Free trial

API

Yes

Team support

Yes

Frequently asked questions

Does Composio support MCP?+

Yes. Composio exposes its managed integrations as MCP endpoints in addition to native SDKs for frameworks like OpenAI, LangChain, and CrewAI.

Does Composio handle OAuth for my users?+

Yes. A core value proposition is managed authentication, including per-user (multi-tenant) OAuth flows and token storage.

Is there a free plan?+

Yes, but it is hard-capped (around 20K tool calls/month) and intended primarily for development rather than production.

Why did people complain about Composio's 2026 pricing?+

A 2026 move to usage-based billing raised effective costs substantially at production scale. Existing customers were grandfathered through the end of 2026.

Can I self-host Composio?+

The core product is a hosted managed service; self-hosting options are limited, so confirm current deployment choices with the vendor.