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
5,272measured
0proven reliable
schema-compatibility-mcp Not measured yet

Compare local JSON schema shape fingerprints without returning property names, values, paths, or...

Package npm : schema-compatibility-mcp · website · measurements and details
JSON Schema Regression Examples — Free Pilot Not measured yet

Free pilot: checked JSON Schema regression examples for a limited subset; no compatibility proof.

MCP endpoint : https://s6d4jqn7rlal7d9hkd64h7pn8o.ingress.hurricane.akash.pub/mcp · website · measurements and details
Witness Not measured yet

Production proofs for breaking JSON Schema/MCP changes; UNKNOWN/NO_WITNESS_FOUND not compatible.

MCP endpoint : https://witness-contractwitness-production.witness-test.workers.dev/mcp · measurements and details
mcp-lint Not measured yet

Lint MCP tool schemas for cross-client compatibility and agent preflight safety.

Package npm : mcp-lint · website · measurements and details
ResolveMesh Compatibility Intelligence Being measured · 100% over 1 checks Real task being tested · 1/1

Read-only, source-backed compatibility lookups and approved changes for ResolveMesh's catalog.

MCP endpoint : https://resolvemesh.com/mcp/public · measurements and details
x402 Compatibility Intelligence Not measured yet

Preflight x402 payment compatibility with structured risk evidence and remediation guidance.

MCP endpoint : https://intelligence.inversolabs.us/mcp · measurements and details
CordFind Generator Compatibility Not measured yet

Search generator guides, check connector compatibility, and plan generator cord size.

MCP endpoint : https://cordfind.com/api/mcp · website · measurements and details
Schema Not measured yet

The AI that understands raw data: Schema over your tables and databases, as MCP tools.

MCP endpoint : https://mcp.schemalabs.ai/mcp · website · measurements and details
JSON Schema keyword count, body discarded Not measured yet

JSON Schema keyword count, body discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/json-schema-ok/mcp · website · measurements and details
Konfiguratorius - PC builder, part prices and compatibility Not measured yet

Build a PC to a budget, check compatibility, estimate FPS. Prices refreshed at least twice a day.

MCP endpoint : https://konfiguratorius.lt/api/mcp · website · measurements and details
Schema Change Gate Being measured · 100% over 1 checks

Replay supplied records against old and new bounded JSON Schema draft-07 contracts. Receive exact...

MCP endpoint : https://mcp-factory.bowling-anthony.workers.dev/schema-change-gate/mcp · website · measurements and details
XML Schema element count, markup discarded Not measured yet

XML Schema element count, markup discarded

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

Audits MCP tool definitions for patterns that make models call tools wrong or mis-fill args.

MCP endpoint : https://mcp-schema-audit-mcp.mcpize.run/mcp · website · measurements and details
SpecJoin Not measured yet

Check computer, dock, monitor and charger compatibility with requirements and manufacturer sources.

MCP endpoint : https://specjoin.peanut20.chatgpt.site/mcp · website · measurements and details
Fixzi — MCP & API Schema Drift Monitor Not measured yet

Monitor MCP servers, API contracts and AI outputs for schema drift. Alerts on breaking changes.

MCP endpoint : https://fixzi.ai/api/mcp · website · measurements and details
claude-schema-output-agent Being measured · 100% over 2 checks

Claude Schema Output Agent

MCP endpoint : https://structured-output-agent-89bcb0.getvda.ai/mcp · website · measurements and details
multi-provider-schema-output-agent Being measured · 100% over 1 checks

Multi-Provider Schema Output Agent

MCP endpoint : https://instructor-litellm-6af681.getvda.ai/mcp · website · measurements and details
OPC UA NodeSet Gate Not measured yet

Deterministic release-compatibility preflight for OPC UA NodeSet2 XML.

MCP endpoint : https://nodeset.regevidencehub.com/mcp · website · measurements and details
browser-compat-mcp-server Not measured yet

Browser compatibility and Baseline status for any web feature — offline, from bundled MDN data.

MCP endpoint : https://browser-compat.caseyjhand.com/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

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

Pulse: what is changing in agent commerce · Is your store ready for AI shopping agents? · State of MCP (weekly) · MCP server doctor · Open reliability data · Add Faceabot to your AI · Help · Privacy · Terms