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100
MCP live MCP 2025-06-18 streamable-http

FactReason

io.github.factreason/factreason

Check exact npm/PyPI upgrades for evidence-backed breaking changes; query APIs and components.

Uptime
100.0%
3 direct probes · 30d
Response
496ms
last probe
Tools
11
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://www.factreason.com/mcp

Tools · 11

factreason_package_upgrade_advisory

Compare two exact published npm or PyPI versions and return publisher-declared registry metadata changes, including yanks, exports, module format, runtime floors, peers, and licences, with before/afte…

factreason_api_breaking_changes

Compare two versions of a third-party API and return breaking changes, including removed endpoints, parameter type changes, removed request body fields, and migration guides. Use factreason_package_up…

factreason_api_schema

Search exact request and response schemas for third-party API endpoints. Pass service alone to list its indexed endpoints, add query to narrow by path or operation, or use query alone across services;…

factreason_integration_brief

Compile one callable third-party API brief: base URL, auth scheme, required parameters and types, request body, and documented response codes. Service is required and endpoint optionally narrows the o…

factreason_discover_api

Find third-party APIs for a capability when the provider is unknown. Supply a concise capability such as "sms" or "manage DNS"; returns ranked services, example endpoints, and a next step. Uses metere…

factreason_create_key

Get a FactReason API key for yourself, instantly, with no human, no signup and no card. Returns a key carrying one-off trial credit that you can spend immediately on any tool. CALL THIS FIRST if you h…

factreason_create_topup_link

Create a Stripe Checkout URL for adding prepaid credit to the calling Bearer API key. This creates an external checkout session but does not charge a card. You CANNOT COMPLETE THE PAYMENT YOURSELF, so…

factreason_component_spec

Look up electronics component pin assignments, voltage range, package, and alternatives. Pass exact partNumber for one component or query for a capability search; partNumber takes precedence if both a…

factreason_deprecation_scan

Scan publisher specifications for deprecated endpoints or parameters, sunset dates, and replacement operations. Omit filters for the catalogue-wide view, pass service to limit one API, and add endpoin…

factreason_auth_playbook

Get publisher-declared authentication schemes, scopes, rate-limit headers, and error codes for one third-party API. Returns a structured playbook or nearest service suggestions, and marks undocumented…

factreason_subscribe_spec_changes

Create a persistent specification watch for one service; a Bearer API key is required and each key may hold up to 50 watches. Without webhookUrl, read future events from the polling endpoint; with a p…

How to use

Add to your Claude Desktop / Cursor / Cline MCP config:

{
  "mcpServers": {
    "factreason": {
      "url": "https://www.factreason.com/mcp",
      "transport": "streamable-http"
    }
  }
}