Composio
Composio is an agent execution platform that bridges AI decision-making and real-world action across 1000+ apps through just-in-time tool calls, secure delegated auth, sandboxed environments, an MCP gateway, parallel execution, and context-aware sessions. Developers get managed OAuth, a tool router for runtime tool discovery, webhook triggers, and a CLI so agents turn intent into action without custom integration work.
Composio publishes 17 API contracts indexed on the APIs.io network, including Auth Configs API, Authentication API, CLI API, and 14 more. Tagged areas include AI Agents, Authentication, Integration, MCP, and OAuth.
The Composio catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.
Composio’s developer surface includes changelog, CLI, authentication, developer portal, documentation, getting-started guide, API reference, and 59 more developer resources.
What this lets a business do 2
Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →
Kin Score
What adopting Composio moves on the Kin Score 1
Composio is an area vendor: providers adopt it to run part of their developer surface. This is the Kin Score checks its features can move for a provider that adopts it, what each one really earns, and what it earns nothing for.
Composio’s toolkits are written and hosted by Composio for its developer customers, not for the API providers they wrap: a Composio toolkit for your API earns your Kin Score nothing. If a provider chose to declare a Composio-hosted MCP URL as its server, 0.22.0 would grade it platform (0.25 of 12 agent-readiness points) — a shared tool shape on backend.composio.dev. Composio’s Agent Skill, llms.txt, CLI and SDKs describe Composio, not the provider.
| Check | Earns | Through |
|---|---|---|
| MCP Serverconditional Agent ReadinessOnly if the provider itself declares the Composio-hosted MCP URL in its own mcp/ manifest. Composio publishing a toolkit about the API, without the provider, puts nothing in the provider’s repo and earns nothing. |
3.0 of 12 | Single-toolkit MCP servers |
What Composio ships that earns nothing (6)
- 1,500+ prebuilt toolkits — A toolkit Composio builds about a provider’s API, without the provider, is Composio’s product. The rubric reads the provider’s own mcp/ manifest; it has nothing to read.
- Composio Agent Skill — The skill teaches agents to use Composio; it is not an Agent Skill for the provider’s API authored by the provider.
- Managed auth configs and white-label OAuth — OAuth is brokered on Composio’s backend with Composio’s (or the developer’s) OAuth app; nothing is served at the provider’s /.well-known/oauth-protected-resource.
- Managed auth configs and white-label OAuth — No registration_endpoint appears in the provider’s discovery document; Composio registers OAuth apps by hand, per toolkit.
- Single-toolkit MCP servers — The endpoint is backend.composio.dev/v3/mcp/
?user_id= , created per developer config; nothing public fills in the server id, which grades `templated` (0.0). - Custom tools and toolkits — Custom tools are code in the developer’s app; they are not a published artifact on the provider’s surface.
A model, not a score. Adopting this vendor changes a provider's Kin Score only when the provider publishes the resulting artifacts on its own surface; nothing here writes a score, and no sponsorship or partnership can. The rating is not for sale → · Full vendor facets artifact
Markets this provider is in provisional
The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.
| Market | Position | Depth | Registered MCP server | Declares compatibility |
|---|---|---|---|---|
| Agent Skills (SKILL.md packages) | builds-on | 44.8 | - | 1 |
| Stripe App Marketplace and Partner Ecosystem (builders on Stripe) | builds-on | 44.8 | - | 1 |
| Zoom App Marketplace and Partner Ecosystem (builders and partners on Zoom) | builds-on | 44.8 | - | 1 |
| Discord App Directory (builders of apps on Discord) | builds-on | 44.8 | - | 1 |
Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.
Standards implemented 3
Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.
APIs 17
Individual APIs this provider publishes, each with its own machine-readable definition.
Composio Auth Configs API
Authentication configuration management
Composio Authentication API
Authentication related endpoints
Composio CLI API
CLI integration endpoints
Composio CLI Authentication API
The CLI Authentication API from Composio — 2 operation(s) for cli authentication.
Composio Connected Accounts API
Connected account management
Composio Files API
File management
Composio Logs API
Logging and monitoring
Composio MCP API
MCP server management
Composio Migration API
Endpoints to help with migration from v1 to v3
Composio Organization Management API
The Organization Management API from Composio — 5 operation(s) for organization management.
Composio Projects API
The Projects API from Composio — 6 operation(s) for projects.
Composio Tool Router API
(Labs) Tool router endpoints
Composio Toolkits API
Toolkit and tool management
Composio Tools API
Tool execution endpoints
Composio Triggers API
Trigger management and execution
Composio Webhook Endpoints API
Per-OAuth-app webhook ingress endpoints. Inbound URLs the provider posts to, plus signing secret storage and verification.
Composio Webhook Subscriptions API
Webhook delivery subscriptions. Outbound URLs Composio posts trigger events to, plus signing secret rotation and event-type filters.
Scroll for all 17
Postman Collections 1
Ready-to-run Postman collections for exercising this provider's APIs.
Composio Platform API
POSTMANOpen Collections 39
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Composio Platform Account Management API
OPEN COLLECTIONComposio Platform Account Management AI API
OPEN COLLECTIONComposio Platform Account Management API Keys API
OPEN COLLECTIONComposio Platform Account Management Applications API
OPEN COLLECTIONComposio Platform Account Management Auth Configs API
OPEN COLLECTIONComposio Platform Account Management Authentication API
OPEN COLLECTIONComposio Platform Account Management Categories API
OPEN COLLECTIONComposio Platform Account Management CLI API
OPEN COLLECTIONComposio Platform Account Management CLI Authentication API
OPEN COLLECTIONComposio Platform Account Management Configuration API
OPEN COLLECTIONComposio Platform Account Management Connected Accounts API
OPEN COLLECTIONComposio Platform Account Management Custom API
OPEN COLLECTIONComposio Platform Account Management Execution API
OPEN COLLECTIONComposio Platform Account Management Files API
OPEN COLLECTIONComposio Platform Account Management Instances API
OPEN COLLECTIONComposio Platform Account Management Integration API
OPEN COLLECTIONComposio Platform Account Management Logs API
OPEN COLLECTIONComposio Platform Account Management MCP API
OPEN COLLECTIONComposio Platform Account Management Migration API
OPEN COLLECTIONComposio Platform API
OPEN COLLECTIONComposio Platform Account Management Organization API
OPEN COLLECTIONComposio Platform Account Management Projects API
OPEN COLLECTIONComposio Platform Account Management Proxy API
OPEN COLLECTIONComposio Platform Account Management Realtime API
OPEN COLLECTIONComposio Platform Account Management Servers API
OPEN COLLECTIONComposio Platform Account Management Session API
OPEN COLLECTIONComposio Platform Account Management Tool Router API
OPEN COLLECTIONComposio Platform Account Management Toolkits API
OPEN COLLECTIONComposio Platform Account Management Tools API
OPEN COLLECTIONComposio Platform Account Management Triggers API
OPEN COLLECTIONComposio Platform Account Management Upload API
OPEN COLLECTIONComposio Platform Account Management URL Generation API
OPEN COLLECTIONComposio Platform Account Management User API
OPEN COLLECTIONComposio Platform Account Management UUID Conversion API
OPEN COLLECTIONComposio Platform Account Management Webhook Endpoints API
OPEN COLLECTIONComposio Platform Account Management x-internal API
OPEN COLLECTIONScroll for all 39
Arazzo Workflows 11
Multi-step API workflows described with the Arazzo specification.
Composio Connect an Account via a New Auth Config
Create an auth config for a toolkit, open a connection, and poll until it becomes active.
ARAZZOComposio Discover and Execute a Tool
Browse toolkits, list the tools they expose, and execute one tool for a user.
ARAZZOComposio Execute a Tool on a User's Connected Account
Resolve a user's active connected account for a toolkit and execute a tool against it.
ARAZZOComposio Generate a Hosted Auth Link
Pick an existing auth config and mint a hosted OAuth link for a user, then wait for the account to connect.
ARAZZOComposio Natural Language Tool Execution
Turn a plain-English instruction into tool arguments and execute the tool.
ARAZZOComposio Provision an MCP Server
Create an auth config, stand up an MCP server bound to it, and create a per-user MCP instance.
ARAZZOComposio Refresh a Connected Account
Detect an expired connected account and refresh its authentication, then confirm it is active again.
ARAZZOComposio Set Up a Trigger
Discover a trigger type, create a trigger instance on a connected account, and confirm it is active.
ARAZZOComposio Tool Router Connect a Toolkit
Open a tool router session, inspect its toolkits, and mint an auth link for an unconnected toolkit.
ARAZZOComposio Tool Router Session
Open a tool router session, search for a tool by use case, and execute it.
ARAZZOScroll for all 11
MCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
Composio MCP Server
Composio exposes its 1000+ toolkits over the Model Context Protocol as a hosted, per-session MCP server. The recommended path is the Tool Router: create a session with `mcp: tru...
MCP SERVERComposio API pricing
Prices published by Composio, read 2026-10-28 from composio.dev/pricing.
| Plan | Price |
|---|---|
| Hobby | $0 Includes: 100,000 tool calls / mo, Connect unlimited accounts, 50,000 triggers / mo, 3 team members |
| Pro | $29/ mo Includes: Everything in Hobby, $29 monthly usage credit included, Unlimited team members, Spend controls + all |
| Enterprise | Custom Includes: Everything in Pro, plus maximum limits; committed volume + discounts; SSO / SCIM / customer-managed |
Plan details, limits and sources →
Rate limits
- Hobby Tier Monthly Quota: 20000 tool calls per month
- Starter Tier Monthly Quota: 200000 tool calls per month
- Professional Tier Monthly Quota: 2000000 tool calls per month
Compiled by API Evangelist, not yet checked against Composio's documentation. All 5 limits →
Billed by: subscription · FinOps profile →
Pricing Plans 2
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Composio Rate Limits
RATE LIMITSService Levels 1
Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.
Composio
SLAFinOps 1
Cost, billing, and metering signals for API financial operations.
Composio Finops
FINOPSSemantic Vocabularies 1
JSON-LD contexts and semantic vocabularies used across these APIs.
Composio Context
JSON-LDSpectral Rules 2
Spectral governance rulesets for linting and validating these APIs.
Composio — jsonschema rules
SPECTRALComposio API Rules
SPECTRALOpenAPI Overlays 1
Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.
JSON Schema 24
Standalone JSON Schema definitions for this provider's data models.
AuthConfigListResponse
JSON SCHEMAAuthConfigResponse
JSON SCHEMAComposio Connected Account
JSON SCHEMAConnectedAccountListResponse
JSON SCHEMAConnectedAccountResponse
JSON SCHEMACreateAuthConfigRequest
JSON SCHEMACreateConnectedAccountRequest
JSON SCHEMACreateTriggerRequest
JSON SCHEMADeprecatedToolkitInfo
JSON SCHEMAError
JSON SCHEMAErrorResponse
JSON SCHEMAExecuteToolRequest
JSON SCHEMAExecuteToolResponse
JSON SCHEMAPatchConnectedAccountBody
JSON SCHEMASessionResponse
JSON SCHEMAComposio Tool
JSON SCHEMAComposio Toolkit
JSON SCHEMAToolkitListResponse
JSON SCHEMAToolkitResponse
JSON SCHEMAToolListResponse
JSON SCHEMAToolRouterToolkitsListResponse
JSON SCHEMAToolsPaginated
JSON SCHEMATriggerListResponse
JSON SCHEMATriggerResponse
JSON SCHEMAScroll for all 24
JSON Structure 1
JSON Structure definitions describing this provider's data shapes.
Composio Structure
JSON STRUCTUREExamples 13
Example request and response payloads for these APIs.
Scroll for all 13
Security Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 4
Portal, sign-up, and the first successful call
Documentation 7
Reference material describing how the API behaves
Scroll for all 7
Agent Surfaces 6
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 17
Pagination, idempotency, versioning, errors, and events
Scroll for all 17
Build 9
SDKs, sample code, and the tooling you integrate with
Scroll for all 9
Access & Security 5
Authentication, authorization, and security posture
Operate 6
Status, limits, changes, and where to get help
Commercial 6
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
Other 3
Properties that don't map to a standard resource type
Source (apis.yml)
Composio API — frequently asked questions
Does Composio have an API?
Yes. APIs.io lists 17 APIs from Composio, including Composio Auth Configs API, Composio Authentication API and Composio CLI API, and 14 more.
Is there an OpenAPI specification for the Composio API?
Yes. APIs.io indexes 17 OpenAPI specifications for Composio, each linked for download from this page.
How do I authenticate with the Composio API?
Composio uses bearer-token authentication (apiKey · 4 schemes). The details are profiled on APIs.io as Composio Authentication.
How much does the Composio API cost?
Composio publishes its prices; its Hobby plan is $0 as of 2026-10-28. APIs.io lists 3 pricing plans for Composio, with each plan's price, limits and inclusions under Pricing on this page.
Does Composio have an MCP server?
Yes. APIs.io lists 1 MCP server for Composio: Composio exposes its 1000+ toolkits over the Model Context Protocol as a hosted, per-session MCP server. The recommended path is the Tool Router: create a session with `mcp: true` and read the hosted
Is the Composio API ready for AI agents?
Composio has a Kin Score of 62.3 out of 100 (strong) and an Agent Readiness score of 30.9 (agent-ready), scored by API Evangelist on 2026-11-06.
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.