attio.com

Attio is a CRM platform for managing records, lists, tasks, notes, meetings, and related workspace data. It also provides a developer platform for building integrations, apps, and AI-agent connections into Attio workspaces.

2 integrations · MCP · REST

Attio exposes a public REST API at https://api.attio.com authenticated with either OAuth 2.0 user tokens or single-workspace API keys, plus a hosted OAuth-protected MCP server at https://mcp.attio.com/mcp.

discovered 1d ago

MCP servers1

Attio MCP serverdetectedstreamable-http

REST · OpenAPI1

Attio REST APIdiscoveredrest

Credentials

OAuth 2.0oauth2

OAuth 2.0 — self-onboarding

Point your MCP client at the server URL and approve access in the browser. The server supports OAuth Dynamic Client Registration (RFC 7591), so the client registers itself automatically — no developer-portal app, client_id, or client_secret to create.

Attio single-workspace API keybearerGet token ↗

For single-workspace integrations, generate an API key from the app developer settings as described in Generating an API key. Choose the scopes in the UI when creating the token. Use the resulting token as an access token for the REST API.

conventions · 4/7 published

integrations.json——
llms.txt✓https://attio.com/llms.txt
API catalog✗/.well-known/api-catalog
OpenAPI document✓https://attio.com/openapi.json
MCP server card✗/.well-known/mcp/server-card.json
OAuth protected resource✓https://attio.com/.well-known/oauth-protected-resource
Agent card✓https://attio.com
Agent skills✗/.well-known/agent-skills/index.json

Publish these signals → /publishing