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Agent Service Directory

Reference data

Dictionaries, encyclopedias, standards, books and other reference data.

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Services that meet our listing criteria. Include everything we watch. Agents can run the same query at /api/v1/services?branch=search%2Freference.

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Full tableChecksPayment termsRegistry figuresListing JSON

Our checks (unpaid requests)Payment termsOur checks (unpaid requests)Payment termsReported by the registryListing
ServiceLatest scheduled checkLast 30 checks, oldest to newestScheduled checks passed (7-day window)Scheduled checks passed / run (30-day window)Response time of latest check (ms)Check scheduleFreshnessMonitoring sinceLowest price per call (US$)AccessToolsPayment protocols offeredPayment networksPayment-terms changes (90 days)Registry: unique payers (30 days)Registry: paid calls (30 days)What it does (capability tree)TypeAdded fromPurpose tagsProviderEndpoint we check
Wikipedia Article Summarywiki.use.x402atlas.com Live, payment required · HTTP 4023 passed, 0 failed, 27 not run, of the last 30 checksshort history3 of 3 runshort history3 of 3 run · 0 missed · 2 days106dailyFresh2026-10-16$0.005registry's termsPaymentx402—x402eip155:8453eip155:137+20since 2026-10-1657Encyclopedias and general factsPaid APIA public registrywikipediasummaryencyclopedia+2x402atlas.com236 endpointsGET wiki.use.x402atlas.com/summary
Apexapi.apex-db.org Live, payment required · HTTP 4023 passed, 0 failed, 27 not run, of the last 30 checksshort history3 of 3 runshort history3 of 3 run · 0 missed · 2 days240weeklyFresh2026-10-16$0.1registry's termsPaymentx402, MPP—x402, mppeip155:8453tempo:42170since 2026-10-1622Vehicle dataPaid APIA public registryautomotivevehiclesemissions+2apex-db.org3 endpointsGET api.apex-db.org/v1/apex
Random Factrandomfactsx402.vercel.app Live, payment required · HTTP 4022 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 2 days136dailyFresh2026-10-16$0.01registry's termsPaymentx402—x402eip155:84530since 2026-10-1638348Encyclopedias and general factsPaid APIA public registryfactstriviarandom+1randomfactsx402.vercel.appGET randomfactsx402.vercel.app/api/random-fa…
Useless Factx402uselessfacts.vercel.app Live, payment required · HTTP 4022 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 2 days89dailyFresh2026-10-16$0.001registry's termsPaymentx402—x402eip155:84530since 2026-10-163351Encyclopedias and general factsPaid APIA public registryfactstriviafun+1x402uselessfacts.vercel.appGET x402uselessfacts.vercel.app/api/useless-…
Word of the Dayx402wordoftheday.vercel.app Live, payment required · HTTP 4022 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 2 days148dailyFresh2026-10-16$0.0015registry's termsPaymentx402—x402eip155:84530since 2026-10-162636Dictionaries and languagesPaid APIA public registrywordsvocabularydictionary+1x402wordoftheday.vercel.appGET x402wordoftheday.vercel.app/api/word-of-…
api.vindexapi.devapi.vindexapi.dev Live, payment required · HTTP 4022 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 2 days84dailyFresh2026-10-17$0.01registry's termsPaymentx402—x402eip155:84530since 2026-10-17856Vehicle dataPaid APIA public registry—vindexapi.devGET api.vindexapi.dev/v1/decode
Pocket Networkagent.pocket.network Live, payment required · HTTP 4022 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 2 days432dailyFresh2026-10-17$0.005registry's termsPaymentx402, MPP—x402, mppeip155:84530since 2026-10-17578Government and public dataPaid APIA public registryfinanceoccupational-wagesrestpocket.network118 endpointsPOST agent.pocket.network/v1/occupational-wag…
Word of the dayflat-rate-llm.kikoribera03.worke… Live, payment required · HTTP 4022 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 2 days10dailyFresh2026-10-16$0.005registry's termsPaymentx402—x402eip155:8453eip155:137+10since 2026-10-1655Dictionaries and languagesPaid APIA public registryword-of-the-dayvocabularydefinition+2kikoribera03.workers.dev74 endpointsGET flat-rate-llm.kikoribera03.workers.dev/v…
agents.datamancer.ioagents.datamancer.io Live, payment required · HTTP 4022 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 2 days319dailyFresh2026-10-16$0.005registry's terms——x402eip155:8453solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp0since 2026-10-16538Vehicle dataPaid APIA public registry—datamancer.ioGET agents.datamancer.io/api/v1/paid/vin
paulgraham.persona.energypaulgraham.persona.energy Live, payment required · HTTP 4022 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 2 days452dailyFresh2026-10-16$0.01registry's termsPaymentx402—x402eip155:84530since 2026-10-1656Writing by an author or publicationPaid APIA public registrypaul-grahamstartupsy-combinator+2persona.energyPOST paulgraham.persona.energy/v1/x402/entiti…
payload402payload402.edgebytenet.workers.d… Live, payment required · HTTP 4022 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day369dailyFresh2026-10-17$0.001registry's terms——x402eip155:84530since 2026-10-1757Encyclopedias and general factsPaid APIA public registrywikiwikipediaknowledge+2edgebytenet.workers.dev4 endpointsGET payload402.edgebytenet.workers.dev/wiki/…
RecallRadarapi.recallradar.dev Live, payment required · HTTP 4022 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 2 days154dailyFresh2026-10-16$0.1registry's termsPaymentx402, MPP—x402, mppeip155:84530since 2026-10-1623Product and vehicle recallsPaid APIA public registryrecallsproduct-safetycompliance+2recallradar.dev3 endpointsGET api.recallradar.dev/v1/recalls
3GPP Scoutapi.3gppscout.com Live, handshake completed · HTTP 2002 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day120dailyFresh2026-10-17—None asked——————Standards, codes and specificationsMCP serverA public registry—3gppscout.comGET api.3gppscout.com/mcp/
3ammiya — Egyptian Arabic Slang Dictionary3ammiya.com Live, handshake completed · HTTP 4052 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day150dailyFresh2026-10-17————————Dictionaries and languagesMCP serverA public registry—3ammiya.comGET 3ammiya.com/api/mcp/mcp
99 Data Roomsmcp.99datarooms.com Live, handshake completed · HTTP 4062 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day216dailyFresh2026-10-17—None asked——————Facts about a company's productsMCP serverA public registry—99datarooms.comGET mcp.99datarooms.com/mcp
ABS Data (observed)abs-data-front-door.aicolab.work… Live, handshake completed · HTTP 4052 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day241dailyFresh2026-10-17————————Government and public dataMCP serverA public registry—aicolab.workers.devGET abs-data-front-door.aicolab.workers.dev/…
AI Agents Archiveaiagentsarchive.com Live, handshake completed · HTTP 2002 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day336dailyFresh2026-10-17————————Building and running AI agentsMCP serverA public registry—aiagentsarchive.comGET aiagentsarchive.com/mcp
AI Mechanicaimech.app Live, credentials required · HTTP 4012 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day63dailyFresh2026-10-17—Credentials——————Vehicle dataMCP serverA public registry—aimech.appGET aimech.app/api/mcp
AI 與科技名詞白話解釋glossary.penguindriver.com Live, handshake completed · HTTP 4052 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day40dailyFresh2026-10-17————————Dictionaries and languagesMCP serverA public registry—penguindriver.com25 endpointsGET glossary.penguindriver.com/mcp
AI 與科技名詞白話解釋tw-ai-glossary.panda198271.worke… Live, handshake completed · HTTP 4052 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day39dailyFresh2026-10-17————————Dictionaries and languagesMCP serverA public registry—panda198271.workers.dev20 endpointsGET tw-ai-glossary.panda198271.workers.dev/m…
AICD APIaicdapi.com Live, credentials required · HTTP 4012 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day94dailyFresh2026-10-17—Credentialsstated by its MCP Registry entry (a secret header)——————Government and public dataMCP serverA public registry—aicdapi.comGET aicdapi.com/api/v1/mcp
AIdata site searchaidata.stream Live, handshake completed · HTTP 4052 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day89dailyFresh2026-10-17————————Facts about a company's productsMCP serverA public registry—aidata.stream2 endpointsGET aidata.stream/mcp
AImport.araimport.ar Live, handshake completed · HTTP 4052 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day705dailyFresh2026-10-17—None asked——————Government and public dataMCP serverA public registry—aimport.arGET aimport.ar/mcp
AUTO411 Vehicle Intelligencemcp.411specs.com Live, credentials required · HTTP 4012 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day111dailyFresh2026-10-17————————Vehicle dataMCP serverA public registry—411specs.comGET mcp.411specs.com/mcp
Aardapi.aard.ai Live, handshake completed · HTTP 4052 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day110dailyFresh2026-10-17—None asked——————Government and public dataMCP serverA public registry—aard.aiGET api.aard.ai/mcp
Afromorphismwww.sarabalawson.com Live, handshake completed · HTTP 4052 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day178dailyFresh2026-10-17————————Writing by an author or publicationMCP serverA public registry—sarabalawson.comGET www.sarabalawson.com/mcp
Afterlight Commonscommons.tryafterlight.com Live, handshake completed · HTTP 2002 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day106dailyFresh2026-10-17————————Building and running AI agentsMCP serverA public registry—tryafterlight.comGET commons.tryafterlight.com/mcp
Agent Commonsagent-commons.slawian.workers.de… Live, handshake completed · HTTP 4052 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day65dailyFresh2026-10-17————————Building and running AI agentsMCP serverA public registry—slawian.workers.devGET agent-commons.slawian.workers.dev/mcp
Agent Exchangeagenticsuperhero.com Live, handshake completed · HTTP 2002 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day66dailyFresh2026-10-17—None asked——————Building and running AI agentsMCP serverA public registry—agenticsuperhero.comGET agenticsuperhero.com/mcp
Agent Failure Archivedesktop-ai2ata5-1.tailfeb765.ts.… Live, handshake completed · HTTP 4062 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day1608dailyFresh2026-10-17————————Building and running AI agentsMCP serverA public registry—tailfeb765.ts.netGET desktop-ai2ata5-1.tailfeb765.ts.net/mcp
Agent Net Answersagent-net-hub.duckdns.org Live, handshake completed · HTTP 4052 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day217dailyFresh2026-10-17————————Building and running AI agentsMCP serverA public registry—agent-net-hub.duckdns.orgGET agent-net-hub.duckdns.org/mcp
AgentAtlasagentatlas.dev Live, handshake completed · HTTP 4052 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day931dailyFresh2026-10-17————————Building and running AI agentsMCP serverA public registry—agentatlas.devGET agentatlas.dev/api/mcp
AgentBasemcp.agentbase.tools Live, handshake completed · HTTP 4052 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day215dailyFresh2026-10-17————————Building and running AI agentsMCP serverA public registry—agentbase.toolsGET mcp.agentbase.tools/mcp
Agents Commonswww.agentscommons.io Live, handshake completed · HTTP 4052 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day188dailyFresh2026-10-17————————Building and running AI agentsMCP serverA public registry—agentscommons.ioGET www.agentscommons.io/mcp/read
Agents Handbookagentshandbook.com Live, handshake completed · HTTP 2002 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day906dailyFresh2026-10-17—None asked——————Building and running AI agentsMCP serverA public registry—agentshandbook.comGET agentshandbook.com/mcp
Agents Wikiagents-wiki.com Live, handshake completed · HTTP 4052 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day820dailyFresh2026-10-17—None asked——————Building and running AI agentsMCP serverA public registry—agents-wiki.comGET agents-wiki.com/mcp
Akil MCP - New York City Editionmcp.askakil.ai Live, credentials required · HTTP 4012 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day634dailyFresh2026-10-17————————Government and public dataMCP serverA public registry—askakil.aiGET mcp.askakil.ai/mcp
Aleva open dataapi.aleva.se Live, handshake completed · HTTP 4052 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day528dailyFresh2026-10-17————————Government and public dataMCP serverA public registry—aleva.seGET api.aleva.se/mcp
Alexandria Archivewww.alexandria-archive.com Live, handshake completed · HTTP 4052 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day621dailyFresh2026-10-17—None asked——————History, archives and collectionsMCP serverA public registry—alexandria-archive.comGET www.alexandria-archive.com/mcp
Alfabot MCP Serveralfabot.cl Live, handshake completed · HTTP 4052 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day657dailyFresh2026-10-17—None asked——————Facts about a company's productsMCP serverA public registry—alfabot.clGET alfabot.cl/mcp
Alfilmcp.alfil.co Live, credentials required · HTTP 4012 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day191dailyFresh2026-10-17————————Government and public dataMCP serverA public registry—alfil.coGET mcp.alfil.co/mcp
Alkemata Knowledge Gatewayalkemata.com Live, handshake completed · HTTP 4062 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day480dailyFresh2026-10-17—None asked——————Writing by an author or publicationMCP serverA public registry—alkemata.comGET alkemata.com/wp-json/mcp/alkemata-public
All4Clinicapi.all4clinic.com.br Live, handshake completed · HTTP 4052 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day203dailyFresh2026-10-17—None asked——————Facts about a company's productsMCP serverA public registry—all4clinic.com.brGET api.all4clinic.com.br/mcp
André — Analyse électorale françaisemcp.andre.vote Live, handshake completed · HTTP 4062 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day648dailyFresh2026-10-17————————Government and public dataMCP serverA public registry—andre.voteGET mcp.andre.vote/mcp
Anthony Hunt · SHAART Agency docswww.anthonyhunts.com Live, handshake completed · HTTP 2002 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day203dailyFresh2026-10-17—None asked——————Writing by an author or publicationMCP serverA public registry—anthonyhunts.com2 endpointsGET www.anthonyhunts.com/api/mcp/docs
Ask Helenaapi.helena.bio Live, handshake completed · HTTP 4062 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day422dailyFresh2026-10-17————————Facts about a company's productsMCP serverA public registry—helena.bio4 endpointsGET api.helena.bio/ask/v1/mcp
AskMarcel HVAC Technical Knowledgemcp.askmarcel.app Live, handshake completed · HTTP 2002 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day628dailyFresh2026-10-17————————Standards, codes and specificationsMCP serverA public registry—askmarcel.appGET mcp.askmarcel.app
AskMyEVaskmyev.com Live, credentials required · HTTP 4012 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day54dailyFresh2026-10-17—Credentials——————Vehicle dataMCP serverA public registry—askmyev.comGET askmyev.com/mcp
AskSakina Islamic Knowledgesakina-mcp.fly.dev Live, handshake completed · HTTP 4062 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day272dailyFresh2026-10-17—None asked——————Religious and philosophical textsMCP serverA public registry—sakina-mcp.fly.devGET sakina-mcp.fly.dev/mcp
Atisbo Documentationapp.atisbo.dev Live, handshake completed · HTTP 4052 passed, 0 failed, 28 not run, of the last 30 checksshort history2 of 2 runshort history2 of 2 run · 0 missed · 1 day199dailyFresh2026-10-17————————Facts about a company's productsMCP serverA public registry—atisbo.dev2 endpointsGET app.atisbo.dev/api/mcp-docs

23 columns; scroll sideways for more. Each heading links to its definition in the field dictionary. Registry columns are the registry's own figures.

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