Google tells you what exists. Faceabot tells you what holds up.
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MCP endpoint :https://dev-toolbox-mcp.aiones.cc/mcp · measurements and detailsMCP-first toolbox for agents: KV storage, auth, queue, and utility tools. Free in early access.
MCP endpoint :https://raccha.ai/mcp · website · measurements and detailsRemote MCP server for 4chems hosted IUCLID, CHESAR and QSAR Toolbox: onboarding, inquiries, admin.
MCP endpoint :https://mcp.4chems.com/mcp · website · measurements and details13 free utility tools for AI agents: web text, markdown, hashing, IDs, dates, units, JSON.
MCP endpoint :https://agent-toolbox-mcp.nclexdrill.workers.dev/mcp · measurements and detailsSmall tools for agent builders: AI-writing tells, tools/list token cost, CLAUDE.md lint, and more.
MCP endpoint :https://toolbox.allthepossibles.com/mcp · website · measurements and detailsFind why a UDS flash failed from a CAN trace; decode UDS, ISO-TP and DTCs. No hardware.
MCP endpoint :https://mcp.udslib.com/mcp · website · measurements and detailsPeople analytics + compensation as MCP tools: JobFrame, pay modeling, wage compliance, HR metrics
MCP endpoint :https://peopleanalyticstoolbox.com/api/mcp · website · measurements and details12 pay-per-event data APIs: Maps, TikTok, Instagram, YouTube, LinkedIn, RAG, reviews, fuel, AEO.
MCP endpoint :https://adagasolutions.lu/mcp · website · measurements and detailsFree, read-only MCP subset of x402 Toolbox's cheap data endpoints, free via MCP.
MCP endpoint :https://lab.paidapis.net/mcp · measurements and detailsFantasy TTRPG data: metals, minerals, ingredients, potions, gems, craft rules, music catalogue.
MCP endpoint :https://michaelghelfistudios.com/api/v1/mcp · website · measurements and detailsFree, no-key MCP server: token estimates, JSON Schema conversion, MCP configs, tool search.
MCP endpoint :https://agenttoolbox.net/api/mcp · website · measurements and detailsMCP Toolbox for Databases enables your agent to connect to your database.
Package oci :us-central1-docker.pkg.dev/database-toolbox/toolbox/toolbox:0.31.0 · website · measurements and detailsRead-only search of mikereams.com: CSDM diagrams, posts and the Architect's Toolbox
MCP endpoint :https://mikereams.com/mcp · measurements and detailsMCP Toolbox for Databases enables your agent to connect to your database.
Package oci :us-central1-docker.pkg.dev/database-toolbox/toolbox/toolbox:1.14.0 · website · measurements and detailsRun Sherlock, Maigret, Holehe, GHunt, theHarvester, SpiderFoot and more OSINT tools locally
Package pypi :osint-toolbox-mcp · website · measurements and detailsThe website platform for AI agents. One API to build, host, and operate real websites.
MCP endpoint :https://api.cactal.ai/v1/mcp · website · measurements and details26 deterministic, offline pre-action safety gates for AI agents, each with a signed verdict.
Package npm :agentoolbox-mcp · website · measurements and detailsCurated SISTRIX SEO tools: visibility, rankings, keywords, backlinks, AI visibility, Amazon data.
Package cargo :sistrix-mcp · website · measurements and detailsToolbox dynamically routes to all MCPs in the Smithery registry based on your agent's need. When a…
MCP endpoint :https://server.smithery.ai/@smithery/toolbox/mcp · measurements and detailsUltimate toolbox to connect your LLM to popular productivity tools such as Monday, AirTable, Slack
MCP endpoint :https://waystation.ai/mcp · website · measurements and detailsAI 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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