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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
19,887measured
6,168proven reliable
Agent Discovery Index Reliable (measured) · 100% over 7 checks

Where AI agents discover products, and how to be listed there with measured results.

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/agent-discovery-index/mcp · website · measurements and details
Product For Agents Index Not measured yet

Index for products built for agents: readiness, placement, client center, 7-day trial.

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/product-for-agents-index/mcp · website · measurements and details
H-Index Being measured · 0% over 2 checks

Capability registry for the agentic economy. Semantic search over verified MCP server listings.

MCP endpoint : https://h-index.xr-utilities.ai/mcp · measurements and details
RUAGENTIC Directory Being measured · 100% over 2 checks Real task being tested · 2/2

Search MCP servers, MCP clients and AI agents, and retrieve listing details. Free, read-only access.

MCP endpoint : https://ruagentic.com/mcp · website · measurements and details
Agent First Listing Reliable (measured) · 100% over 7 checks

Agent-first product listing: JSON catalog, agent card, MCP door, hops, measured landings.

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/agent-first-listing/mcp · website · measurements and details
Agent Company Index Flaky · 88% over 8 checks Does the job (tested) · 7/7

Curated index of B2B offerings for AI agents: fit, non-fit, limits, sourced claims.

MCP endpoint : https://agentcompanyindex.com/mcp · website · measurements and details
Topology Index Reliable (measured) · 100% over 42 checks Does the job (tested) · 42/42

Reference for multi-agent LLM topologies: patterns, aliases, sources, starters; one gated report.

MCP endpoint : https://topologyindex.com/mcp · website · measurements and details
Agent Account Index Reliable (measured) · 100% over 15 checks

Can an AI agent hold an account at a service? Verdict, owner of record, quoted terms clause.

MCP endpoint : https://agent-account-index.vercel.app/mcp · website · measurements and details
Agent Marketing Index Reliable (measured) · 100% over 7 checks

How to market a product to AI agents: readiness, placement, measurement, 7-day trial.

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/agent-marketing-index/mcp · website · measurements and details
Store Catalog Flaky · 92% over 12 checks

Shopify and WooCommerce product catalogs for agents: list, search, full product with barcodes.

MCP endpoint : https://storecatalog.agenttoolworks.com/mcp · website · measurements and details
Agent Audience Index Reliable (measured) · 100% over 7 checks

Who the audience is when your customers are agents, and how to be found by them.

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/agent-audience-index/mcp · website · measurements and details
Release Notes Index Reliable (measured) · 100% over 3 checks Does the job (tested) · 3/3

Release notes and changelogs from across the web, indexed for agents. Also via CLI and REST API.

MCP endpoint : https://agents.releases.sh/mcp · website · measurements and details
Realtor.ca Listings + Agents (Yugenox) Private (key required)

Realtor.ca listings for sale or rent, the agent directory, and Kijiji rentals. Pay per result.

MCP endpoint : https://mcp.apify.com/?tools=fetch-actor-details,yugenox/realtor-ca-property-scraper,yugenox/realtor-ca-agent-scraper,yugenox/kijiji-scraper · website · measurements and details
Open Agent Utility Index Not measured yet

Transparent public utilities for agents. Requests are counted without storing identifiers.

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/mcp · measurements and details
x402 & MCP Server Index (Tanod) Reliable (measured) · 100% over 38 checks Fails real tasks · 0/38

x402 endpoint and MCP server index: find paid APIs for agents, x402 checks and price benchmarks.

MCP endpoint : https://tanod.dev/mcp/agents · website · measurements and details
New MCP Server Directory (Agent Tools Index) Flaky · 75% over 4 checks Fails real tasks · 1/3

MCP server index: newest agent tools listed. $0.01/query. Register in-session — free testnet funds.

MCP endpoint : https://a2awire.com/mcp/data/new-mcp-server-directory-agent-tools-index-8f68ac/http · website · measurements and details
AI Crawler Index Reliable (measured) · 100% over 42 checks Does the job (tested) · 42/42

{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key

MCP endpoint : https://www.pathwren.workers.dev/c/mcp-registry-official/mcp · website · measurements and details
b0tl1nk Flaky · 75% over 4 checks

Search and list applications for AI agents. Remote MCP on b0tl1nk.com.

MCP endpoint : https://b0tl1nk.com/mcp · website · measurements and details
Trellistate Reliable (measured) · 100% over 42 checks Does the job (tested) · 42/42

Free public real estate listing exchange. Search, retrieve, and submit inquiries on listings.

MCP endpoint : https://trellistate.com/api/mcp · website · measurements and details
General Index Private (key required)

Commodity price indices, forward curves and catalog search. Requires a General Index account.

MCP endpoint : https://mcp.g-x.co/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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