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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, 2026x402Payments & commerceCommunity listed · unclaimedproblocks.ioVerify payment connectivity with USDC on Base. Returns a JSON pong and UTC timestamp after settlement.
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedprofessorsausages.comNewest headlines from a deduped, tiered 972-feed direct portfolio (primary sources + wires/majors + trade press + Hacker News + gated GDELT), newest first, up to 100 per call — filter by category, source, and language; every article carrie… (42 paid endpoints on x402.professorsausages.com.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedproof.platoskallipolis.comBefore an AI agent trusts or pays a public API, inspect its public machine-readable evidence and x402 readiness. Submit a public HTTPS domain to check its agent card, OpenAPI, robots policy, and settlement-aware x402 signals, or submit a B…
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedproxy.0000402.xyzPay $0.01 USDC to make an outbound HTTP request through the proxy. Supports all standard HTTP methods, custom headers (including auth), and JSON or raw bodies. Responses are returned as text or base64-encoded binary. Max response size 10 M…
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedpulse.chainverdict.xyzAPI uptime and reliability monitoring for any x402 endpoint: a live quality verdict covering availability, uptime, latency percentiles, 402-offer conformance, price-drift and payTo-stability flags. Deterministic and re-verifiable. (5 paid endpoints on pulse.chainverdict.xyz.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedq402.quackai.aiPaid API that reads a full DAO proposal and returns a structured voting recommendation with reasons.
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedqonoro.aiValidates email deliverability: syntax check, MX record lookup, and SMTP server reachability. Returns risk score and quality rating. Deterministic, sub-second. x402-native. (5 paid endpoints on api.qonoro.ai.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedquokkapix.comQuokkaPix image agent unlock for image-standard. Media stays local on the user's device.
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedravn.exchangeRAVN — best-price swap quotes across 20 execution venues and 17 chains, including native (non-wrapped) Bitcoin as either source or destination. 0% protocol fee, non-custodial. Returns a quoteToken; pass it to POST /execute. (2 paid endpoints on app.ravn.exchange.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedrecipients-paywall.onrender.comEpisode 1 of recipients[], an ongoing AI-agent thriller serial: a short text episode (~370 words, markdown). An agent finds its own ID on a payment recipient list before the file even exists. $0.01 USDC on Base. Free teaser at /teaser.
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedregime.nsgoods.orgCMC regime classification + strategy spec (USDC pay-per-call). Free preview: GET /regime/preview A bad or unsupported id returns 400; upstream failure returns 503; you are never charged for an error.
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedresearch.appliedidentities.comThree composite AI readiness scores with history
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedriddlex402.vercel.appPay a micro-fee in USDC on Base mainnet to receive a riddle and its answer.
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedrisk-oracle-api.rohan-rajnikanth.workers.devDeterministic reserve-condition risk assessment for native USDC on Aave V3 Base
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedrobbiegeorgephotography.comAtomic canonical resolution for the registered Robbie George Biography Plate™ identifier. x402 payment grants one endpoint-level retrieval only. It does not grant training, embedding, bulk ingestion, redistribution, resale, synchronization…
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedrouter.mudko.comOnRamperX is a non-custodial value router for agents and humans: fiat<->crypto and cross-chain via one quote interface (Coinbase Onramp v2, Relay, x402). This endpoint returns the router's live capabilities and rail status; use /api/x402/q…
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedrun402.comSet prototype tier ($0.10 USDC) — auto-detects start/renew/upgrade
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedscout.hugen.tokyo11-source parallel intelligence report in one call — HN, GitHub, npm, PyPI, Dev.to, Hashnode, Lobsters, StackExchange, ArXiv, Semantic Scholar, GitLab. Best ROI on Bazaar. AI agent API for market research. Accepts USDC payments on Base and… (13 paid endpoints on scout.hugen.tokyo.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedscrooge-x402-tool-mill.vercel.appExtract schema.org structured data from a public HTML page: JSON-LD (@graph flattened), top-level microdata, and Open Graph / Twitter meta. Normalizes Product/Offer, Article, Organization, Event, FAQ, and breadcrumbs. POST JSON {"url":"htt… (8 paid endpoints on scrooge-x402-tool-mill.vercel.app.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedscvd.storeSpot Check. REQUIRES ?host= on the paid request — a signed request without it is refused before the gate and no money moves. Name a host and get what this observatory already holds on it, signed: corpus rounds and verdicts as recorded, whe… (31 paid endpoints on scvd.store.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedsentinel.rootstuff.ioEvery DNS record for a domain plus propagation across public resolvers (7 paid endpoints on sentinel.rootstuff.io.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedsettled.toolsSigned check of an x402 endpoint before you pay it: who really pays it on Base (settlements and unique payers over 30 days), a fresh unpaid probe (cached ≤5 min) with status, latency and the parsed quote, payability, paying agents' reports… (8 paid endpoints on settled.tools.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedsg-cm-kg.aiOne paid call on sg-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt…
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedsh-origin.walls.shReal-time news search for AI agents. Returns recent news articles (title, link, snippet, published date) as JSON from a multi-engine news metasearch. Pay-per-query in USDC via x402 — no signup, no API key. Use for current events, breaking… (4 paid endpoints on sh-origin.walls.sh.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedshield.vainplex.devShieldAPI - x402 security preflight before agents accept or store credential material (3 paid endpoints on shield.vainplex.dev.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedshizu.meFetch any public web page and return its main content as clean Markdown, ready to feed to an LLM. Boilerplate (nav, ads, footers) stripped. Input: url (public http/https). Returns {url, markdown, word_count}. (30 paid endpoints on x402.shizu.me.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedshop.netlobo.comLive crypto prices: USD spot for BTC, ETH and SOL in one call, fetched per call (not cached), so the figure is the number right now. A cheap, high-frequency data lane for x402 buyers budgeting in the unit they pay with. Sourced from public… (12 paid endpoints on shop.netlobo.com.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedshopify-ai-rank-checker.underscoredone.comChecks how well a Shopify store's products show up when AI shopping assistants such as ChatGPT, Gemini, Perplexity, Grok, and Copilot search for products, and reports the store's rank and its closest competitors. Searches Shopify's real Gl…
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedsignalis.devPaid ($0.01 USDC via x402). Active AI-business narratives with lifecycle stage, driving sources, and momentum. Proxied from the Pulse service. Compute-first / settle-after — you are never charged when Pulse is unavailable or returns an err… (2 paid endpoints on api.signalis.dev.)
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