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Databases
1,407 listings from 1,060 providers, 824 answering · counted
Filed by addrbook from the words in each listing, so a heading says what a listing claims to be for.
Showing 76–95, one row per provider, those answering first · names and descriptions as their source publishes them
- x402-factoryx402-factory.comFind prediction markets by free-text query; returns slugs for other endpoints — Full-text search over the canonical market catalog (Postgres FTS + trigram in live mode). Returns slugs, blended probabilities, and match confidence. Empty result sets return 200 with a suggestion listing valid categories.Livechecked Evidence 1/4x402x402 Bazaar1 payer
- Mangrove AIapi.mangrovedeveloper.aiSave strategy configuration to the database.Livechecked Evidence 1/4x402x402 Bazaar1 payer
- Run402api-run402-com · api.run402.comAI-native Postgres + REST API + auth + storageLivechecked Evidence 1/4x402Agentic.Market
- nbdkupglrdfzopydimlt.supabase.conbdkupglrdfzopydimlt-supabase-coLivechecked Evidence 1/4x402Agentic.Market
- zmmhycpktdsynzorbujg.supabase.cozmmhycpktdsynzorbujg-supabase-coLivechecked Evidence 1/4x402Agentic.Market
- Viridis Agent Fleetmcp.viridisconservation.comEnergy and climate compliance regulation scan across a curated 14-regulation database, with jurisdiction, urgency, and effective-date signals, including California SB 253 and SB 261 status. The scan step pairs with Viridis GHG inventory, sustainability disclosure, and clean-energy tax-credit engines.Livechecked Contradictedx402x402 Bazaar4 payers
- Tolcatolca.tonbot.caCompany profile from a domain or name in ONE call, for sales and research agents: what the company does, industry, services, service area, address, phones and emails published by the company (each with the page it came from), social links, plus official screening (registries, US, UK, EU and Canadian sanctions lists). Read live from the company's own website, no third-party database. No website found = HTTP 404 = no charge. Input: domain or name, optional city, country, lang (Livechecked Contradictedx402x402 Bazaar2 payers
- Card Hedgeapi.cardhedger.comMatch a natural language card description to the best card in the CardHedge database.Livechecked Contradictedx402x402 Bazaar1 payer
- mcp-x402.onrender.com/x402/nih-grantsmcp-x402.onrender.comNIH Reporter research grant database — active NIH grants by keyword and agency (NCI, NHLBI, NIAID, etc). Pay 0.001 USDC on Base using the fresh PAYMENT-REQUIRED challenge and caller-authorized PAYMENT-SIGNATURE.Livechecked Contradictedx402x402 Bazaar1 payer
- gdzlcxskuhupymyxywzm.supabase.cogdzlcxskuhupymyxywzm-supabase-coLivechecked Contradictedx402Agentic.Market
- foundry-api-production-95ae.up.railway.app/v1/lifecycle/postgresql/terminal-historyfoundry-api-production-95ae.up.railway.appHistorical PostgreSQL support-end evidence for a selected major release.Unreachablechecked Evidence 0/4x402x402 Bazaar5 payers1 more from foundry-api-production-95ae.up.railway.app
- BizIntel APIbizintel-api.hahavoid0.workers.devQueries foreign exchange currency pairings from the free Frankfurter database.Unreachablechecked Evidence 0/4x402x402 Bazaar5 payers1 more from hahavoid0.workers.dev
- Data Transform APIultra-endpoints.comTransform JSON records or CSV uploads with typed schemas and Polars SQL. Filter, aggregate, join and reshape data. Pricing depends on input size and SQL statement count; the 402 response contains the exact USDC amount.Unreachablechecked Evidence 0/4x402x402 Bazaar4 payers
- agenttoll.devSearch USPTO trademark database. Returns mark, owner, filing date, status, registration number, goods/services classes.Unreachablechecked Evidence 0/4x402x402 Bazaar3 payers
- sovereign-x402-zeta.vercel.app/api/v1/vector/qdrant/querysovereign-x402-zeta.vercel.appQuery a Qdrant collection for the nearest points to a given vector.Unreachablechecked Evidence 0/4x402x402 Bazaar1 payer3 more from sovereign-x402-zeta.vercel.app
- Saylor Innovations Data Desksaylorinnovations.comUS amateur radio callsign lookup - licence class, status, grant and expiry dates, licensee name and grid square from the FCC databaseUnreachablechecked Evidence 0/4x402x402 Bazaar1 payer1 more from saylorinnovations.com
- AgentUtility.aix402.agentutility.aiLooks up a person from an email, name, domain, or company and returns a normalized public-data record (alias of people-enrich). Includes inferred display name, free-email detection, MX records, and optional public company context. Public-data only; no private people databases or LinkedIn scraping. Use it as a people lookup, people API, or person lookup.Unreachablechecked Evidence 0/4x402x402 Bazaar1 payer1 more from agentutility.ai
- Relaystation Extract Tablesapi.relaystation.ai$0.08/document. Pull tables out of a document as structured rows and columns (Textract Tables) — not text soup. 155 tools, one balance — relaystation.aiUnreachablechecked Evidence 0/4x402x402 Bazaar1 payer
- Keenableapi-test.keenable.aiKeenable SELECT for AI agents: one read-only SQL query over live web results (search, fetch and LLM field extraction), answered as a table. Write the query from https://select.keenable.ai/guide.md. Sign a ceiling (max_usd, default $0.10); you pay what the query cost, from $0.01.Unreachablechecked Evidence 0/4x402x402 Bazaar1 payer1 more from keenable.ai
- Alliumagents-allium-so · agents.allium.soOnchain prices, balances, transactions, PnL, SQL explorerUnreachablechecked Contradictedx402Agentic.Market