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The real catalog of tools for AI agents

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

44,737real tools
29,284callable over HTTPS
19,924measured
6,554proven reliable
Rules Lookup Reliable (measured) · 100% over 43 checks Does the job (tested) · 30/30

Read the rule itself instead of a summary of it.

MCP endpoint : https://rules.openkrill.app/mcp · website · measurements and details
firestore-rules-guard Not measured yet

Audits firestore.rules and storage.rules for public access, expired test-mode dates and missing owne

Package npm : @readystack/firestore-rules-guard · website · measurements and details
Rules-Generator-Pro Being measured · 0% over 1 checks

Automated .cursorrules and system prompt generator.

MCP endpoint : https://rules-gen-mcp.vercel.app/api/mcp · measurements and details
Tipping Rules Reliable (measured) · 100% over 42 checks Does the job (tested) · 41/42

Read-only travel tipping for 140 destinations: search, country rules, and tip calculator.

MCP endpoint : https://www.tippingrules.com/api/mcp · website · measurements and details
mcp Flaky · 86% over 7 checks

Interact with your Google Cloud Firestore resources using natural language commands.

MCP endpoint : https://firestore.googleapis.com/mcp · measurements and details
CSS rule count, stylesheet discarded Not measured yet

CSS rule count, stylesheet discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/css-rule-count/mcp · website · measurements and details
Rule-Porter Being measured · 0% over 1 checks

Multi-IDE settings translator mapping shortcuts between apps.

MCP endpoint : https://rule-porter-mcp.vercel.app/api/mcp · measurements and details
Scanverity Resolution Rules Being measured · 100% over 2 checks

Polymarket contract search and settlement rules. MCP needs approval; request written reports openly.

MCP endpoint : https://scanverity.com/mcp · website · measurements and details
Sports Rules Reliable (measured) · 100% over 43 checks Does the job (tested) · 43/43

Work an offside call through IFAB Law 11 or NHL Rule 83, step by step.

MCP endpoint : https://sports-rules.gumballtools.com/api/mcp · website · measurements and details
Execute certora-rule-generator-mcp Being measured · 0% over 1 checks

Premium agentic endpoint for certora-rule-generator-mcp.

MCP endpoint : https://api.m2mcent.com/certora-rule-generator-mcp/sse · measurements and details
ABNF rule count, body discarded Reliable (measured) · 100% over 7 checks

ABNF rule count, body discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/abnf-ok/mcp · website · measurements and details
CSS rule count, body discarded Not measured yet

CSS rule count, body discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/css-ok/mcp · website · measurements and details
gitignore rule count, body discarded Not measured yet

gitignore rule count, body discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/gitignore-ok/mcp · website · measurements and details
Lex rule count, body discarded Not measured yet

Lex rule count, body discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/lex-ok/mcp · website · measurements and details
Court Rules Private (key required)

Judge-level filing rules, court holidays and enforcement data for US federal and state courts.

MCP endpoint : https://mcp.courtrules.app/mcp · website · measurements and details
PEG rule count, body discarded Not measured yet

PEG rule count, body discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/peg-ok/mcp · website · measurements and details
SCSS rule count, body discarded Not measured yet

SCSS rule count, body discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/scss-ok/mcp · website · measurements and details
ANTLR grammar rule count, body discarded Reliable (measured) · 100% over 7 checks

ANTLR grammar rule count, body discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/antlr-ok/mcp · website · measurements and details
Yacc rule count, body discarded Not measured yet

Yacc rule count, body discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/yacc-ok/mcp · website · measurements and details
Approval Rules Reliable (measured) · 100% over 12 checks

Auto-approve small agent actions under your rules; approval cards for the rest.

MCP endpoint : https://approve.cloudforbots.com/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

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