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Composio

Composio Tools API

Tool execution endpoints

Documentation Provider Profile APIs.io OpenAPI GitHub

Composio Tools API is one of 17 APIs that Composio publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Tools. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

This API exposes 8 operations across 8 paths, and defines 7 schemas. It is described by OpenAPI 3.2.0, at version 1.0.

Requests are made against 2 base URLs: https://backend.composio.dev, https://backend.composio.dev/api/v3.

8 operations 8 paths 7 schemas 4 GET4 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0
Base URL
https://backend.composio.dev/api/v3
Authentication
API Key, API Key, API Key, API Key, API Key
Resource Areas
1

Authentication & Security 5

Composio Tools API declares 5 security schemes for authenticating requests. An API key is passed in the header as x-api-key (ApiKeyAuth). An API key is passed in the header as x-user-api-key (UserApiKeyAuth). An API key is passed in the cookie as authToken (CookieAuth). An API key is passed in the header as x-org-api-key (OrgApiKeyAuth). An API key is passed in the header as x-api-key (apiKeyAuth).

  • ApiKeyAuth — Project API key authentication
  • UserApiKeyAuth — User API key authentication
  • CookieAuth — Cookie-based session authentication
  • OrgApiKeyAuth — Organization API key authentication
  • apiKeyAuth — API key for authenticating requests to the Composio platform. Obtain from the Composio dashboard at app.composio.dev.

Paths & Operations 8

Across 8 paths, the API surfaces 8 operations — 4 GET, 4 POST. Each is listed below with its method, path, parameters, and response codes.

Tools 8

Tool execution endpoints

GET
/api/v3/tools
List available tools
getTools 12 params → 200400401403404429500
GET
/api/v3/tools/enum
Get tool enum list
getToolsEnum → 200400401403404500
GET
/api/v3/tools/{tool_slug}
Get tool by slug
getToolsByToolSlug 3 params → 200400401404500
POST
/api/v3/tools/execute/{tool_slug}
Execute tool
postToolsExecuteByToolSlug 2 params body → 200400401403404408410413
POST
/api/v3/tools/execute/{tool_slug}/input
Generate tool inputs from natural language
postToolsExecuteByToolSlugInput 1 param body → 200400401404422429500
POST
/api/v3/tools/execute/proxy
Execute proxy request
postToolsExecuteProxy body → 200400401403404422429500
GET
/tools
Composio List available tools
listTools 4 params → 200401
POST
/tools/{toolId}/execute
Composio Execute a tool action
executeTool 1 param body → 200400401404

Schemas 7

The contract defines 7 schemas that model the data the API accepts and returns. The most detailed are Tool (15 properties), Tool_2 (6 properties), ToolsPaginated (5 properties), ExecuteToolResponse (3 properties). Each schema is shown below with its type and property counts.

Tool
object
15 properties 14 required
Error
object
1 property 1 required
ToolsPaginated
object
5 properties 4 required
ToolListResponse
object
2 properties
Tool_2
object
6 properties
ExecuteToolResponse
object
3 properties
ExecuteToolRequest
object
2 properties 1 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

composio-tools-api-openapi.yml Raw ↑

Other APIs Composio publishes across the network.

Composio Auth Configs API
AE Profile APIs.io
Composio Authentication API
AE Profile APIs.io
Composio CLI API
AE Profile APIs.io
Composio CLI Authentication API
AE Profile APIs.io
Composio Connected Accounts API
AE Profile APIs.io
Composio Files API
AE Profile APIs.io
Composio Logs API
AE Profile APIs.io
Composio MCP API
AE Profile APIs.io
Composio Migration API
AE Profile APIs.io
Composio Organization Management API
AE Profile APIs.io
Composio Projects API
AE Profile APIs.io
Composio Tool Router API
AE Profile APIs.io
#Tools
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API Details
ID
composio:composio-tools-api
Base URL
https://backend.composio.dev/api/v3
Docs
https://docs.composio.dev/reference
Provider
Composio
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