DemiSignal

DemiSignal MCP Server

Remote MCP server over streamable HTTP at https://demisignal.com/mcp with three read-only tools (check_domain, generate_spf_record, generate_dmarc_record); usable with no account, or with a free dsk_ API key for a personal monthly allowance.

GitHub

Documentation

📖
Documentation
https://demisignal.com/tools/mcp-server

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/demisignal-com:demisignal-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.

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API entry from apis.yml

apis.yml Raw ↑ 
aid: demisignal-com:demisignal-mcp-server
name: DemiSignal MCP Server
description: Remote MCP server over streamable HTTP at https://demisignal.com/mcp with three read-only
  tools (check_domain, generate_spf_record, generate_dmarc_record); usable with no account, or with a
  free dsk_ API key for a personal monthly allowance.
humanURL: https://demisignal.com/tools/mcp-server
baseURL: https://demisignal.com/mcp
tags:
- MCP
- Email Authentication
properties:
- type: Documentation
  url: https://demisignal.com/tools/mcp-server