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Check if an MCP server changed its tools: signed history, per-server coverage, offline proofs.
MCP endpoint :https://mcp.legion-api.com/mcp · website · measurements and detailsPremium agentic endpoint for catalog-engine-mcp.
MCP endpoint :https://api.m2mcent.com/catalog-engine-mcp/sse · measurements and detailsMCP-native LLM councils for debates, juries, blind panels, refinement, and custom deliberation.
Package npm :legion-mcp · website · measurements and detailsSearch MCP servers in the public mcp-catalog.ru directory.
MCP endpoint :https://mcp-catalog.ru/mcp · website · measurements and detailsPremium agentic endpoint for agent-credit-history-mcp.
MCP endpoint :https://api.m2mcent.com/agent-credit-history-mcp/sse · measurements and detailsSupplement prices and price history (UK/EU), SupplementScore ratings, verified discount codes, UCP
MCP endpoint :https://mrsuppy.com/api/agent/mcp · website · measurements and detailsSupplement prices and price history (NL/BE), SupplementScore ratings, verified discount codes, UCP
MCP endpoint :https://sportpoeder.nl/api/agent/mcp · website · measurements and detailsPublic Suffix List MCP.
MCP endpoint :https://gateway.pipeworx.io/public-suffix-list/mcp · website · measurements and detailsWAXED vinyl marketplace: record/catalog search, price history, and dealer store management.
MCP endpoint :https://mcp.waxed.market · measurements and detailsAgent-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 detailsRead-only MCP server for verified book recommendations and reading lists.
MCP endpoint :https://mostrecommendedbooks.com/api/mcp · website · measurements and detailsRead-only catalog of verified MCP servers and Agent Skills by dev task, with practical verdicts.
MCP endpoint :https://agenttaskatlas.com/api/mcp · website · measurements and detailsRead and verify freeq conversations: channels, history, search, signatures, pins.
MCP endpoint :https://irc.freeq.at/mcp · website · measurements and detailsCapability registry for the agentic economy. Semantic search over verified MCP server listings.
MCP endpoint :https://h-index.xr-utilities.ai/mcp · measurements and detailsVerify emails (valid/invalid/risky/unknown): MX, SMTP, catch-all, disposable. Free agent key.
MCP endpoint :https://app.emaillistvalidation.com/mcp · website · measurements and detailsAmazon catalog auditing tool. 13 quality checks for your listings.
Package npm :@bwb03/catalog-cli-pro · website · measurements and detailsCheck how many years of verifiable history a person has behind accounts they already own.
MCP endpoint :https://patinadata.xyz/api/mcp · website · measurements and detailsGWAS Catalog (EBI/NHGRI) MCP — curated catalog of genome-wide association studies.
MCP endpoint :https://gateway.pipeworx.io/gwas-catalog/mcp · website · measurements and detailsVerify a company exists: UK, EU VAT, GLEIF LEI, 8 registers, search filters, UK filing history
MCP endpoint :https://mcp.apify.com?tools=pavel.tashev/european-company-registry-lookup · measurements and detailsMarketCheck automotive data: search US/UK listings, predict prices, decode VINs, market history.
MCP endpoint :https://developers.marketcheck.com/api/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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