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
3,610measured
0proven reliable
HTTP 413 payload-too-large Not measured yet

Meaning of HTTP 413.

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-413/mcp · website · measurements and details
HTTP 431 header-fields-too-large Not measured yet

Meaning of HTTP 431.

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-431/mcp · website · measurements and details
HTTP 425 too-early Not measured yet

Meaning of HTTP 425.

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-425/mcp · website · measurements and details
HTTP 414 uri-too-long Not measured yet

Meaning of HTTP 414.

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-414/mcp · website · measurements and details
HTTP 429 too-many-requests Not measured yet

Meaning of HTTP 429.

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-429/mcp · website · measurements and details
Execute base64-payload-decoder-mcp Not measured yet

Premium agentic endpoint for base64-payload-decoder-mcp.

MCP endpoint : https://api.m2mcent.com/base64-payload-decoder-mcp/sse · measurements and details
JWT header shape, payload discarded Not measured yet

JWT header shape, payload discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/jwt-header/mcp · website · measurements and details
KSUID payload charset, value discarded Not measured yet

KSUID payload charset, value discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/ksuid-pay/mcp · website · measurements and details
Payload Validator Being measured · 100% over 1 checks Real task being tested · 1/1

Validate JSON, YAML, XML and CSV with exact line/column errors and silent-corruption warnings.

MCP endpoint : https://payload-validator.gumballtools.com/api/mcp · website · measurements and details
Austin Oaks Payload Rescue Being measured · 100% over 1 checks

Repair malformed JSON that fails a schema. Deterministic only; refuses to guess; signed receipt.

MCP endpoint : https://ao-payload-rescue-production.up.railway.app/mcp · website · measurements and details
JWT header.payload.sig shape, value discarded Not measured yet

JWT header.payload.sig shape, value discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/jwt-hdr/mcp · website · measurements and details
data: URI media-type only, payload discarded Not measured yet

data: URI media-type only, payload discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/data-uri-ok/mcp · website · measurements and details
DocSlicer Not measured yet

Answer questions from documents too large to fit in context, reading only the sections you need.

Package mcpb : https://github.com/DocSlicer/DocSlicer/releases/download/v0.2.5/docslicer-0.2.5.mcpb · website · measurements and details
api-payload-auditor Not measured yet

Cloudflare Workers MCP server: api-payload-auditor

MCP endpoint : https://api.lazy-mac.com/api-payload-auditor/mcp · website · measurements and details
HAL Not measured yet

HAL (HTTP API Layer) - An MCP server that provides HTTP API capabilities to Large Language Models

Package npm : hal-mcp · website · measurements and details
inflation-signal Being measured · 100% over 1 checks

Inflation & Fed liquidity thermometer: 47 macro series, too_low..too_high. Pay-per-call x402.

MCP endpoint : https://inflation-signal.airblock2026.workers.dev/mcp · website · measurements and details
HTTP 505 http-version Not measured yet

Meaning of HTTP 505.

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-505/mcp · website · measurements and details
video-transcript Not measured yet

Any video URL to LLM-ready transcript. ASR built in, no captions needed. TikTok, X, TED and more.

MCP endpoint : https://api.payload.cool/mcp/ · website · measurements and details
http/https scheme check, URL discarded Not measured yet

http/https scheme check, URL discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/url-scheme-ok/mcp · website · measurements and details
X-Forwarded-Proto http/https, value discarded Not measured yet

X-Forwarded-Proto http/https, value discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/xfp-ok/mcp · website · measurements and details

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