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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 · unclaimedhk-cm-kg.aiOne paid call on hk-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, 2026x402OtherCommunity listed · unclaimedhl-tool.darren-pi.workers.devFull Hyperliquid funding extremes (carry-cost leaderboard)
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Live · checked Oct 12, 2026x402OtherCommunity listed · unclaimedholdsup.appPublished fact-checked episodes, newest first, with optional filters by category slug, show id or speaker slug. Paged. (2 paid endpoints on holdsup.app.)
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Live · checked Oct 12, 2026x402OtherCommunity listed · unclaimedholidays.use.x402atlas.comHoliday date check by country or subdivision — determine whether one ISO date is an official public holiday. (5 paid endpoints on holidays.use.x402atlas.com.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedhorizonpulse.devCrypto market data. Use when you need current BTC, ETH and SOL spot prices in USD. Call GET with no parameters. Returns JSON: assets.BTC/ETH/SOL with priceUsd, change24hPct and momentum (bullish/bearish/neutral), plus overall momentum, sen… (16 paid endpoints on horizonpulse.dev.)
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Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimedhorrorstoryapi.vercel.appAccess the exclusive horror story collection (pay-per-read).
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Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimedhosaka-agents.vercel.appUse when you have a company domain and need to know what the company is before spending more. Returns the company name and site title, domain age, registrar, mail provider, DNS provider, DMARC and HTTPS status, and a count of the third-par…
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Live · checked Oct 12, 2026x402Research & dataCommunity listed · unclaimedhotels.use.x402atlas.comHotel search — find hotels & vacation rentals anywhere by destination with live nightly rates, star class, guest ratings, amenities, photos & coordinates as clean JSON. (4 paid endpoints on hotels.use.x402atlas.com.)
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Live · checked Oct 12, 2026x402Research & dataCommunity listed · unclaimedhoujin.agentic-jp.comDataset metadata for this Japanese (JP) corporate-number API — how many corporations are loaded and which prefectures are covered. (3 paid endpoints on houjin.agentic-jp.com.)
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Live · checked Oct 12, 2026x402Design & mediaCommunity listed · unclaimedhtml.openverbs.comRemove all HTML tags, returning the plain text content. Entities are decoded to real characters by default (set decodeEntities=false to keep them encoded). (4 paid endpoints on html.openverbs.com.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedhttp--forest-gas-station-mainnet--lcjl27p8lmjs.code.runDetect material public DNS answer changes with a deterministic hash. TTL-only changes do not count and no arbitrary resolver or AXFR operation is exposed. Base mainnet USDC (95 paid endpoints on http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run.)
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Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimedhttp-header-checker.underscoredone.comSends a request to a web address you provide and reports back everything the server said in response: the status code, all the response headers, how many times it got redirected, and how long the whole thing took.
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Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimedhttp-status-checker.underscoredone.comGive this API a list of up to 10 web addresses and it will visit each one to tell you whether it is working, broken, or redirecting visitors somewhere else. You get back the exact status number (like 200 for OK, 404 for not found, 500 for…
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedhumanmirror.frPreflight a proposed command or AI-agent tool call before execution and verify that operational risk stays within the declared limit. (4 paid endpoints on humanmirror.fr.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedhydratrader.aiSummarize text. Classify sentiment. Rewrite. Extract keywords. Translate. When to use: cheap agent glue / probe steps for buyer-supplied text. Returns JSON for $0.01 per call in USDC on Base via x402. No API key. Local-fast NLP; no login s… (9 paid endpoints on x402.hydratrader.ai.)
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Live · checked Oct 12, 2026x402OtherCommunity listed · unclaimedhyperliquid-predict.use.x402atlas.comThe catalog of Hyperliquid prediction-market outcomes and their metadata. (2 paid endpoints on hyperliquid-predict.use.x402atlas.com.)
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Live · checked Oct 12, 2026x402OtherCommunity listed · unclaimedhyperliquid.use.x402atlas.comCurrent mid price for every Hyperliquid asset (perps + spot) in one call — a fast whole-venue price snapshot. (9 paid endpoints on hyperliquid.use.x402atlas.com.)
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Live · checked Oct 12, 2026x402Research & dataCommunity listed · unclaimedhypernatt.comForced-order map. If cluster_grammar is present, read it before liq_radar. class=noise (<3%) is high-leverage bait - ignore. class=true (~7%+) is the low-leverage stack. Terrain, not a signal. Whitelist BTC ETH SOL BNB XRP HYPE ZEC (omit =… (2 paid endpoints on hypernatt.com.)
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Live · checked Oct 12, 2026x402ProductivityCommunity listed · unclaimedical.openverbs.comBuild a valid .ics document from event fields (summary, start/end, location, …). (2 paid endpoints on ical.openverbs.com.)
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Live · checked Oct 12, 2026x402OtherCommunity listed · unclaimedid.openverbs.comGenerate one or more lexicographically sortable ULIDs (monotonic within a call). (4 paid endpoints on id.openverbs.com.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedideafactorylab.orgCurrent weather for any city. Pass ?city=London (4 paid endpoints on api.ideafactorylab.org.)
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Live · checked Oct 12, 2026x402ProductivityCommunity listed · unclaimedimagegen.coinopai.comPrompt Styles — a curated FLUX prompt-engineering cheat sheet: 12 proven style recipes, an aspect-ratio guide, and a tier picker for the paid /generate endpoints. Static JSON, answers in milliseconds. Spend $0.001 here before spending $0.2… (6 paid endpoints on imagegen.coinopai.com.)
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Live · checked Oct 12, 2026x402Design & mediaCommunity listed · unclaimedimgopt.use.x402atlas.comConvert and compress images to WebP, AVIF, JPEG or PNG. Optimize and shrink photos for web and CDN delivery from any image URL.
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Live · checked Oct 12, 2026x402OtherCommunity listed · unclaimedimmuta.appLatest PulseChain block number and timestamp.
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Live · checked Oct 12, 2026x402OtherCommunity listed · unclaimedinsider.lonestaroracle.xyzInsider trades — SEC Form 4 buys and sells by officers and directors for any ticker
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Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimedinterzoid.comGenerate an AI-powered similarity key for individual/person name matching. Handles variations like 'Bob Smith', 'Robert Smith', 'Smith, Robert J.' producing the same key for matching and deduplication. (15 paid endpoints on api.interzoid.com.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedinvoket.comBefore your agent advises on EU compliance or cites EU law: check an act or article is in force at a given date, by CELEX or ELI identifier — consolidated text, status, validity dates and the staggered date it becomes APPLICABLE (in force… (14 paid endpoints on api.invoket.com.)
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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimedioswarm.ioLive quotes for up to 8 symbols — stocks, ETFs, crypto pairs (BTC-USD), FX — price, session change and currency, in the paid response. $0.01 per call, no account. (32 paid endpoints on ioswarm.io.)
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Live · checked Oct 12, 2026x402Real-world servicesCommunity listed · unclaimediot.halowerk.comGroups caller-supplied scalar field changes by field name, selects the highest version, and reports a conflict when equal-version values differ. It does not connect to a twin platform, merge nested documents or resolve semantic conflicts. (10 paid endpoints on iot.halowerk.com.)
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Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimedip-geo-api-production.up.railway.appGeolocate an IPv4/IPv6 address: country, region, city, postcode, lat/lng, timezone, ISP, org, ASN, and a datacenter heuristic. (4 paid endpoints on ip-geo-api-production.up.railway.app.)
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