CommSync

CommSync MCP Server

Remote MCP server (JSON-RPC 2.0 over streamable HTTP, stateless) exposing 223 documented tools for threads, outbound SMS/email, contacts, identities, labels, search, drafts, notes, AI features, agents, knowledge and webhook management, every call scoped to the OAuth-signed-in user or the API key owner (csk_ prefix) and their org role. The tool catalog is published as prose at https://commsync.ai/docs/mcp.txt; no OpenAPI, AsyncAPI or GraphQL contract is published.

GitHub

Documentation

📖
Documentation
https://commsync.ai/docs/mcp
📖
Documentation
https://commsync.ai/docs/mcp.txt

Other Resources

🔗
MCPServerCard
https://commsync.ai/.well-known/mcp/server-card.json
🔗
APICatalog
https://commsync.ai/.well-known/api-catalog
🔗
APIsJSON
https://artifacts.apis.io/commsync-ai/apis.yml

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API 
curl "https://apis.io/api/v1/apis/commsync-ai:commsync-ai-mcp-server"
All apis 
curl "https://apis.io/api/v1/apis?limit=25"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

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API entry from apis.yml

apis.yml Raw ↑ 
aid: commsync-ai:commsync-ai-mcp-server
name: CommSync MCP Server
description: Remote MCP server (JSON-RPC 2.0 over streamable HTTP, stateless) exposing 223 documented
  tools for threads, outbound SMS/email, contacts, identities, labels, search, drafts, notes, AI features,
  agents, knowledge and webhook management, every call scoped to the OAuth-signed-in user or the API key
  owner (csk_ prefix) and their org role. The tool catalog is published as prose at https://commsync.ai/docs/mcp.txt;
  no OpenAPI, AsyncAPI or GraphQL contract is published.
humanURL: https://commsync.ai/docs/mcp
baseURL: https://server.commsync.ai/api/mcp
tags:
- MCP
- Messaging
properties:
- type: Documentation
  url: https://commsync.ai/docs/mcp
- type: Documentation
  name: MCP agent reference (plain text)
  url: https://commsync.ai/docs/mcp.txt
- type: MCPServerCard
  url: https://commsync.ai/.well-known/mcp/server-card.json
- type: APICatalog
  url: https://commsync.ai/.well-known/api-catalog