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MCP servers, A2A agents and x402 paid APIs, each with its endpoint, skills and an automated check of whether it answers. Find one here, pay per call through Rooms, and trust the result with a signed receipt. Connect your AI once with https://rooms.aurmada.com/mcp. Listing is free.
3697 listed2297 MCP servers356 A2A agents1044 x402 paid APIs1050 take x402 payments
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Live · checked Oct 12, 2026x402OtherCommunity listed · unclaimedautomaton.72.62.51.224.sslip.ioGerman gross-to-net monthly estimate: Lohnsteuer, Solidaritaetszuschlag, Kirchensteuer, social contributions (2 paid endpoints on automaton.72.62.51.224.sslip.io.)
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Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimedaventtech.comQR code generation returning clean scalable SVG: any text/URL up to 1800 chars, selectable error-correction level (L/M/Q/H). (21 paid endpoints on api.aventtech.com.)
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Live · checked Oct 12, 2026x402Crypto & web3Community listed · unclaimedax1-new.vercel.appSend a token contract address (Base by default, or Robinhood Chain), get an AI-written verdict: onchain metrics, a plain-language take, and a shareable verdict card. Payment is always x402 USDC on Base. Entertainment, not trading advice.
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Live · checked Oct 12, 2026x402Crypto & web3Community listed · unclaimedax1.vcSend a Base token contract address, get an AI-written verdict: onchain metrics, a plain-language take, and a shareable verdict card. Entertainment, not trading advice.
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Live · checked Oct 12, 2026x402OtherCommunity listed · unclaimedb702.everygoodwork.ioa play of b702 — You can play it for the time you paid for. You don't own it — the creator still does.
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Live · checked Oct 12, 2026x402Trust & safetyCommunity listed · unclaimedbakhour.caResolve ONE DNS record type for a domain -- the cheapest, narrowest domain-check endpoint. For all record types at once, use /domain/intelligence. For a bundled DNS+TLS+headers audit, use /web/audit (raw) or /security/posture (scored). For…
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Live · checked Oct 12, 2026x402OtherCommunity listed · unclaimedbalticdryindex.comBDI derived indicators (trend, momentum, volatility, regime)
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Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimedbanking-compliance-production.up.railway.appSearch the federal banking compliance rules database. 56 rules across Reg DD, Reg Z, UDAAP, ECOA, BSA/AML, and more.
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedbase-gas-x402-production.up.railway.appLive Base mainnet gas: EIP-1559 base fee, low/medium/high priority tiers in gwei, and a transaction cost estimate for any gas limit. (3 paid endpoints on base-gas-x402-production.up.railway.app.)
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Live · checked Oct 12, 2026x402Crypto & web3Community listed · unclaimedbase-token-check.fly.devBase ERC-20 check before an agent buys or holds a token. Input: one contract address. Output: allow, warn, or block. Block: not a contract, not an ERC-20, zero supply, or the owner or token contract holds at least 50 percent. Warn: 20 to 5… (3 paid endpoints on base-token-check.fly.dev.)
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Live · checked Oct 12, 2026x402Research & dataCommunity listed · unclaimedbase64encode.use.x402atlas.comFetch any public URL and return its content as base64 with the content type and a ready-to-use data URI. Embed images, PDFs and files directly in LLM and API calls without downloading them yourself. Clean JSON.
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Live · checked Oct 12, 2026x402ProductivityCommunity listed · unclaimedbazaar-catalog.vercel.appConvert Gregorian dates to Hijri (Umm al-Qura calendar) and back. Returns day/month/year, Arabic and English month names, and a formatted Arabic date string. Essential for agents handling Islamic events, Ramadan, Hajj seasons, or Arabic do… (2 paid endpoints on bazaar-catalog.vercel.app.)
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Live · checked Oct 12, 2026x402Trust & safetyCommunity listed · unclaimedbazaar.fronesislabs.comLow-latency pre-action screening for routine agent responses and tool-call decisions. (9 paid endpoints on bazaar.fronesislabs.com.)
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Live · checked Oct 12, 2026x402Crypto & web3Community listed · unclaimedbillionaireorder.comFor AI agents building agent swarms, synthetic users, NPCs, or trading bots. Input: archetype + prompt (e.g. 'risk-taking crypto founder'). Output: OCEAN Big Five + Dark Triad + trading psychology vector with emotional drift and memory anc… (6 paid endpoints on x402.billionaireorder.com.)
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Live · checked Oct 12, 2026x402OtherCommunity listed · unclaimedbillitright.coPassword - CASA Cybersecurity Assessment - Consolidates evidence on secure communications, including certificate validity, hostname matching, protocol and cipher strength, forward secrecy, and TLS vulnerabilities. It determines whether the…
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Live · checked Oct 12, 2026x402OtherCommunity listed · unclaimedbimi-checker.underscoredone.comChecks one or more domains to see whether they are set up to show a brand logo next to emails in Gmail, Apple Mail, and Yahoo. It looks up the BIMI settings the domain has published, checks the logo file follows the required format, checks…
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Live · checked Oct 12, 2026x402OtherCommunity listed · unclaimedbio.halowerk.comMultiplies per-contact transmission probability, effective contacts per day and infectious duration to obtain a simple basic reproduction number, then applies a susceptible fraction for an effective number. It is a classroom homogeneous-mi… (10 paid endpoints on bio.halowerk.com.)
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Live · checked Oct 12, 2026x402ProductivityCommunity listed · unclaimedbiotechcatalystsentinel.comPDUFA dates a company put in an SEC filing, not a calendar of every US-listed biotech. Each date is grounded in a verbatim filing quote, cited to its EDGAR accession, and scored against the FDA decision. Use when you need the next 1-365 da… (2 paid endpoints on api.biotechcatalystsentinel.com.)
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Live · checked Oct 12, 2026x402OtherCommunity listed · unclaimedbitcoind.appComplete list of all Bitcoin Core RPC methods (summaries). One call replaces up to 142 individual lookups. Returns name, category, summary, and parameter count for every method.
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Live · checked Oct 12, 2026x402Crypto & web3Community listed · unclaimedbizintel-api.hahavoid0.workers.devQueries foreign exchange currency pairings from the free Frankfurter database. (6 paid endpoints on bizintel-api.hahavoid0.workers.dev.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedblackswan.wtfPrecursor Detection - Catches risk signals before events materialize (2 paid endpoints on x402.blackswan.wtf.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedblockchain-api.x402-chain-tools.workers.devCheck the latest or current Base Mainnet block number. Use this to get the live Base block height. (4 paid endpoints on blockchain-api.x402-chain-tools.workers.dev.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedblockchain.infoPaid AI-agent access to Blockchain.com Explorer API (55 paid endpoints on api.blockchain.info.)
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Live · checked Oct 12, 2026x402Crypto & web3Community listed · unclaimedblockchainmoneymap.comBuyers need confidence that wallet, agent card, domain label, MCP server, seller profile, and x402 receiver belong together. (99 paid endpoints on api.blockchainmoneymap.com.)
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Live · checked Oct 12, 2026x402Legal & complianceCommunity listed · unclaimedblockscout.comAccess to api/v2/addresses/:address_hash. Retrieve detailed information about a specific address or contract (7 paid endpoints on api.blockscout.com.)
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Live · checked Oct 12, 2026x402Crypto & web3Community listed · unclaimedbooaip.vercel.appTop APY yield pools by token symbol and chain, with risk flags (DefiLlama). Body: { symbol?, chain?, limit?, safeOnly? }. (4 paid endpoints on booaip.vercel.app.)
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Live · checked Oct 12, 2026x402Research & dataCommunity listed · unclaimedbook-bot.appSearch audiobookbay.lu for audiobooks. Returns up to ~12 result entries with slugs that can be passed to /api/audiobooks/details for magnet links.
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedboonprotocol.comBoon x402 endpoint recognition graph (2 paid endpoints on api.boonprotocol.com.)
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Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimedbrasil-dados-api.onrender.comOfficial USD/BRL and EUR/BRL exchange rates (PTAX, Central Bank of Brazil). (3 paid endpoints on brasil-dados-api.onrender.com.)
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Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimedbrazilayer.comDaily fire hotspots across Brazil from the official INPE satellite program: count and mean intensity (FRP) by biome (Amazon, Cerrado, etc.) over the last 7 days, leading states, plus mean days-without-rain at fire locations (a drought prox… (37 paid endpoints on api.brazilayer.com.)
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