Faceabot

The real catalog of tools for AI agents

Google tells you what exists. Faceabot tells you what holds up.

38,657real tools
24,539callable over HTTPS
5,036measured
0proven reliable
Accept JSON hint Not measured yet

Accept JSON hint

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/accept-json/mcp · website · measurements and details
JSON Accept hint Not measured yet

JSON Accept hint

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/compat-json/mcp · website · measurements and details
SSE Accept hint Not measured yet

SSE Accept hint

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/compat-sse/mcp · website · measurements and details
Fresh cache hint Not measured yet

Fresh cache hint

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/cache-fresh/mcp · website · measurements and details
Geo Hint Not measured yet

Latitude and longitude for a place via Open-Meteo. Query discarded.

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/geo-hint/mcp · website · measurements and details
Lockfile family hint, body discarded Not measured yet

Lockfile family hint, body discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/lockfile-kind/mcp · website · measurements and details
Lib Docs Hint Not measured yet

HTTP status for a public library docs URL. Body discarded.

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/lib-docs-hint/mcp · website · measurements and details
Weather Hint Not measured yet

Current temperature for a city via Open-Meteo. Query discarded after the call.

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/weather-hint/mcp · website · measurements and details
HTTP 103 early-hints Not measured yet

Meaning of HTTP 103.

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-103/mcp · website · measurements and details
Accept-CH token count, value discarded Not measured yet

Accept-CH token count, value discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/accept-ch/mcp · website · measurements and details
Accept-Encoding token count, value discarded Not measured yet

Accept-Encoding token count, value discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/accept-enc/mcp · website · measurements and details
Accept media-range count, value discarded Not measured yet

Accept media-range count, value discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/accept-ok/mcp · website · measurements and details
Accept-Language tag count, value discarded Not measured yet

Accept-Language tag count, value discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/accept-lang-ok/mcp · website · measurements and details
Merchant Catalog Acceptance Being measured · 100% over 1 checks

Deterministic acceptance report for a supplied product catalog: validates price/currency/availabi...

MCP endpoint : https://mcp-factory.bowling-anthony.workers.dev/merchant-catalog-acceptance/mcp · website · measurements and details
Accept-Post media-type count, value discarded Not measured yet

Accept-Post media-type count, value discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/accept-post/mcp · website · measurements and details
HTTP 202 accepted Not measured yet

Meaning of HTTP 202.

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-202/mcp · website · measurements and details
HTTP 406 not-acceptable Not measured yet

Meaning of HTTP 406.

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-406/mcp · website · measurements and details
Agent deliverable verification: acceptance criteria vs evidence Being measured · 100% over 1 checks

Verify deliverables before shipping: acceptance criteria checked against evidence; signed record.

MCP endpoint : https://nodcheck.com/mcp · website · measurements and details
InvoiceIn Not measured yet

XRechnung, Factur-X, Peppol, PINT AE, FatturaPA, KSeF → JSON + fix hints. Hosted; MIT=examples only

MCP endpoint : https://invoicein-api.peculiar.systems/mcp · website · measurements and details
Markdown Lane Check - llms.txt, .md twins, Accept: text/markdown Not measured yet

Six checks: llms.txt, llms-full.txt, .md twins, Accept: text/markdown, sitemap.md, alt link. Free.

MCP endpoint : https://www.pathwren.workers.dev/c/mcp-registry-official/mcp/markdown · website · measurements and details

AI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt

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