For AI agents

357 deterministic tools your agent can call directly. The model passes structured input; a golden-verified engine computes the output — so tool results never hallucinate. Everything below is first-party and free (anonymous tier).

MCP server

The fastest way to give an assistant these tools. The list is derived from the same engine bindings the API uses.

Remote: https://tools.demystifysystem.com/api/mcp
Local (stdio): npx @demystify/tools-mcp
Descriptor: https://tools.demystifysystem.com/api/mcp · see /mcp

REST API

Call any api-worthy tool over HTTP. Typed by the same zod schema as the UI; RFC 9457 errors; a catalogued-but-unbound tool answers a clear 501.

Endpoint: POST https://tools.demystifysystem.com/api/v1/<tool>
Spec: https://tools.demystifysystem.com/api/openapi.json (OpenAPI 3.1)
Rate limit: per-client; RateLimit-* + Retry-After headers · see /api

Machine indexes

Everything an answer engine needs, generated from the registry.

https://tools.demystifysystem.com/llms.txt — the concise index
https://tools.demystifysystem.com/llms-full.txt — the full detail
https://tools.demystifysystem.com/sitemap.xml · https://tools.demystifysystem.com/robots.txt (GPTBot / ClaudeBot / PerplexityBot / Google-Extended allowed)

The privacy contract

Client tools make zero third-party requests and work offline. The API/MCP run server-side, log no request data, and store nothing. Your keys (BYOK AI) transit server-side only and are never stored or logged.

Trust & privacy →