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The real catalog of tools for AI agents

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

45,319real tools
29,744callable over HTTPS
19,950measured
6,699proven reliable
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Heading level 1-6 shape

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/heading-level/mcp · website · measurements and details
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Heading level 1-6 shape

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/heading-n/mcp · website · measurements and details
heade.rs Reliable (measured) · 100% over 3 checks Fails real tasks · 0/3

Look up any domain, IP address or AS number: hosting, DNS, registration, email, TLS and headers.

MCP endpoint : https://heade.rs/mcp · website · measurements and details
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MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/md-heading-count/mcp · website · measurements and details
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MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/markdown-ok/mcp · website · measurements and details
hjarni Private (key required)

Markdown-based note-taking with a hosted MCP server. Your notes serve you and your AI.

MCP endpoint : https://hjarni.com/mcp · website · measurements and details
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MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/docs-anchor2/mcp · website · measurements and details
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MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/docs-anchor-ok/mcp · website · measurements and details
Talking Heads on Markets Flaky · 67% over 3 checks Real task being tested · 1/2

Source-backed market views by talking head, topic, ticker, and horizon, with original links.

MCP endpoint : https://www.headge.com/mcp · measurements and details
Meeba Brain Reliable (measured) · 100% over 18 checks Does the job (tested) · 18/18

Repository knowledge graph MCP server for codebase understanding and debugging.

MCP endpoint : https://meeba-context-mcp-469248886325.us-central1.run.app/mcp · website · measurements and details
Allen Brain Being measured · 0% over 1 checks

Gene expression experiments and the brain structure ontology from the Allen Institute's Brain…

MCP endpoint : https://gateway.pipeworx.io/allen-brain/mcp · website · measurements and details
Agently Brain Private (key required)

Company brain for AI agents — temporal knowledge graph search, exploration, and durable memory.

MCP endpoint : https://api.agently.dev/mcp · website · measurements and details
Aiqbee Brain Private (key required)

AI knowledge graph for architecture, portfolio, and digital strategy management.

MCP endpoint : https://mcp.aiqbee.com/mcp · website · measurements and details
Brain Memory Private (key required)

Persistent memory for AI agents: one brain shared across Claude, Cursor, Codex and more.

MCP endpoint : https://mcp.brainmemory.ai/mcp · website · measurements and details
StackFast FractWin Expert Brain Being measured · 0% over 1 checks

Expert knowledge base for sales, negotiation, strategy, operations, and risk.

MCP endpoint : https://stackfast.ai/api/mcp · website · measurements and details
MindDory Brain Flaky · 80% over 5 checks

Free: turn your AI chats into spaced-repetition vocabulary. 13 tools, reads and writes.

MCP endpoint : https://api.minddory.com/v1/brain/mcp · website · measurements and details
Agent-Native Brain Private (key required)

Cited company knowledge from Slack, meetings, transcripts, and decisions

MCP endpoint : https://brain.agent-native.com/mcp · website · measurements and details
Steel Brain Reliable (measured) · 100% over 42 checks

Trade-verified steel grade properties, substitution verdicts, and mill-cert guidance for AI agents.

MCP endpoint : https://api.steelbrain.dev/mcp · website · measurements and details
simulis — marketing brain Private (key required)

A business's marketing memory: campaigns, results, decisions, brand and audience knowledge.

MCP endpoint : https://simulis.io/mcp · website · measurements and details
INITE Brain Reliable (measured) · 100% over 9 checks

Long-term memory for AI agents: a bitemporal knowledge graph with cited answers.

MCP endpoint : https://brain.inite.ai/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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