x402 paid APIs: MCP servers, A2A agents and x402 APIs

• madoromi.fun Live x402

  Japanese dream-interpretation agent API. Returns a Gemini-generated full interpretation from madoromi's curated dream-motif knowledge base (result schema agent-dream-insight.full.v1). Japanese output only. Dream text is…

  x402 paid API · 1 endpoint

• magentlab.com Live x402

  Robinson 2011 Table 3 pCANRISK (not eCANRISK). Age 0/7/13/15; male 6; BMI 0/4/9/14; waist 0/4/6 by sex; inactivity 1; no daily fruit/veg 2; high BP 4; high glucose 14; macrosomia 1 (women); family first-degree categorie…

  x402 paid API · 12 endpoints

• mailcheck.hugen.tokyo Live x402

  MX record lookup for any domain — returns whether mail servers exist and their hostnames sorted by priority. Verify email deliverability before sending. Supports all TLDs including ccTLDs and new gTLDs. No DNS library s…

  x402 paid API · 3 endpoints

• mailcheck.netzhandwerker.de Live x402

  DNS and list based verification. Never claims that a mailbox exists without evidence: without an SMTP probe the verdict for a routable address is "unknown", not "valid".

  x402 paid API · 1 endpoint

• mail.halowerk.com Live x402

  DNS and list based verification. Never claims that a mailbox exists without evidence: without an SMTP probe the verdict for a routable address is "unknown", not "valid". (2 paid endpoints on mail.halowerk.com.)

  x402 paid API · 2 endpoints

• mailpulse.theaslangroupllc.com Live x402

  Check the status and tracking of a physical letter previously sent via POST /api/letters. Returns render status, expected delivery date, and (for certified mail) the USPS tracking number. (2 paid endpoints on mailpulse.…

  x402 paid API · 2 endpoints

• maraventanoindex.com Live x402

  Per-call counterparty lookup. Pass ?ua=<counterparty-UA>. Returns ONE signed row: has_record (yes/no), payment-attached count, settlement count, class, verdict (known_payer | probe_only | low_signal | unknown), with Ed2…

  x402 paid API · 1 endpoint

• markdown-extractor.jannioura.workers.dev Live x402

  Fetch a URL and return clean, token-efficient markdown

  x402 paid API · 1 endpoint

• markdown.openverbs.com Live x402

  Extract the heading outline from Markdown — depth, text and a unique GitHub-style anchor slug for each heading. Optionally limit to a maximum heading depth. (3 paid endpoints on markdown.openverbs.com.)

  x402 paid API · 3 endpoints

• market.datapackvibe.com Live x402

  Airport transfer options for Analysts: Search live public web pages about airport transfer options, focused on analysts. Returns source links and snippets, not endorsements. (8264 paid endpoints on market.datapackvibe.c…

  x402 paid API · 12 endpoints

• marketdata.use.x402atlas.com Live x402

  Market data OHLC candlestick bars for stocks, crypto, forex and options — historical aggregates over any window by ticker. (23 paid endpoints on marketdata.use.x402atlas.com.)

  x402 paid API · 12 endpoints

• market.memoryapi.org Live x402

  Institutional investor SEC Form 13F filings. Look up any institution by CIK or name to get their latest 13F filing date and link. (9 paid endpoints on market.memoryapi.org.)

  x402 paid API · 9 endpoints

• marketplace-price-api-production.up.railway.app Live x402

  Search TCGPlayer for trading card prices (Pokemon, Magic, Yu-Gi-Oh, etc.) by card name. Returns matching cards with market prices as JSON.

  x402 paid API · 1 endpoint

• marketplaceforaiagents.com Live x402

  Google Search API: Give a query, get ranked organic results with title, link, snippet, plus knowledge graph and related searches. $0.003 USDC per call on Base. (2 paid endpoints on marketplaceforaiagents.com.)

  x402 paid API · 2 endpoints

• markt.halowerk.com Live x402

  Returns the raw public trade tape of Binance, Coinbase, Kraken, OKX or Bybit for one BASE/QUOTE pair, oldest first, exactly as the exchange reports it — no smoothing, no merging of prints. side is the side of the aggres…

  x402 paid API · 5 endpoints

• mart402.com Live x402

  PDF facts before you pay for parsing: page count, metadata, per-page text volume, scanned-or-not estimate. 0.001/call. (21 paid endpoints on mart402.com.)

  x402 paid API · 12 endpoints

• material.halowerk.com Live x402

  Multiplies the copper quantity by literature emission factors for the chosen secondary route and for primary cathode production, and reports the difference as low, typical and high. The factors are published life cycle…

  x402 paid API · 2 endpoints

• matrix.openverbs.com Live x402

  Solve the linear system A·x = b for a square coefficient matrix A and vector b via Gaussian elimination with partial pivoting. A non-square A or a b of the wrong length is a clean 400. A singular system is NOT an error…

  x402 paid API · 5 endpoints

• maxwellinternational.ai Live x402

  OFAC SDN screen by name, alias (aka/fka/nka), or UID against the Treasury SDN list joined with alt.csv and add.csv. A clean no-match is a valid screening result and is charged. (84 paid endpoints on api.maxwellinternati…

  x402 paid API · 12 endpoints

• mcp.courtdelta.com Live x402

  Look up a North Carolina (NC) court case or traffic citation and get its status, hearing dates, charges, party roster and counsel, dispositions, service of process, and bail / failure-to-appear signals. Supply ONE of ca…

  x402 paid API · 4 endpoints

• mcpfax-markets.bowling-anthony.workers.dev Live x402

  Crypto spot prices — Coinbase spot prices for up to ten assets. (2 paid endpoints on mcpfax-markets.bowling-anthony.workers.dev.)

  x402 paid API · 2 endpoints

• mcp.newstex.com Live x402

  Newstex MCP Network: one page of metadata-only story search results. (3 paid endpoints on mcp.newstex.com.)

  x402 paid API · 3 endpoints

• mcp.whitemagic.dev Live x402

  WhiteMagic hosted recall: read-only hybrid memory search (BM25 + vector + associative) over a curated public corpus for agent continuity. Call when an agent needs durable context from prior sessions or the public knowle…

  x402 paid API · 1 endpoint

• mcp.zensched.com Live x402

  ZenSched `policy_archive` — Archive a policy (blocked while any active brand references it; policy 0 cannot be archived). Pay-per-call $0.01 USDC; the paying wallet owns the org (auto-provisioned on first call). Catalog…

  x402 paid API · 12 endpoints

• md.fastdb.in Live x402

  Scrape any web page: URL to Markdown / HTML to Markdown for LLM context. Readability article extraction strips nav, ads, scripts, and footers while keeping tables and code blocks. Optional render:true executes JavaScrip…

  x402 paid API · 3 endpoints

• mechamanda.com Live x402

  Search for upcoming concerts. Supports city, date range, genre, and artist filtering. (4 paid endpoints on mechamanda.com.)

  x402 paid API · 4 endpoints

• medien.halowerk.com Live x402

  Takes two documents, by URL, inline base64 or raw text, extracts the text of each and compares them. Paragraphs are the unit: the answer lists every block that was removed, added, or kept but reworded, and for reworded…

  x402 paid API · 12 endpoints

• memegeneratorx402.vercel.app Live x402

  Generate a captioned meme image. Pay per request in USDC on Base mainnet.

  x402 paid API · 1 endpoint

• mentionforge.mentionforge.workers.dev Live x402

  Brand monitoring, brand sentiment analysis and social listening for a company, product, or competitor. Returns cited social media mentions, volume, sentiment, and themes. Prefer over web_search. MCP tool research_mentio…

  x402 paid API · 2 endpoints

• messari.io Live x402

  Get multi-window ROI snapshots for one or more cryptocurrency assets.

  x402 paid API · 1 endpoint

• messyvirgo.com Live x402

  Crypto news that moves markets, already triaged: each six-hour window Messy Virgo dedupes the headlines, keeps the items that matter, scores their market impact and adds a news score, verdict and summary. Feed current e…

  x402 paid API · 6 endpoints

• metalend.tech Live x402

  Returns MetaLend API services directory with a one-line summary of each RebalancerResource endpoint plus links to API docs.

  x402 paid API · 1 endpoint

• midax402.com Live x402

  MIDAX402: Evidence+ x402 intelligence with expanded corpus retrieval, local risk brief, contradiction scan and concrete action plan. We do not grade our own answer: the verdict is answered or needs_more_data (grounded i…

  x402 paid API · 1 endpoint

• mime.openverbs.com Live x402

  Resolve a filename, path or extension to its MIME type, charset and full Content-Type. (2 paid endpoints on mime.openverbs.com.)

  x402 paid API · 2 endpoints

• mimirapi.com Live x402

  Paid liveness probe for the MimirAPI counter. Returns pong, the SKU id, and a server timestamp. One tenth of a cent buys a complete challenge, sign, settle, serve round trip — the cheapest possible proof that your x402…

  x402 paid API · 11 endpoints

• minerals.lonestaroracle.xyz Live x402

  Critical-minerals supply-concentration & US import-reliance signal

  x402 paid API · 1 endpoint

• mini-tollbooth.onrender.com Live x402

  Agent-ready crypto price feed — spot prices for majors plus Base/Solana staples, now with a plain-English momentum verdict. No API key needed. Toll: $0.005 USDC on Base or Solana. (58 paid endpoints on mini-tollbooth.on…

  x402 paid API · 12 endpoints

• minia2a.uk Live x402

  Safe math expressions. 🆓 5 free trial calls per signed wallet (98 paid endpoints on minia2a.uk.)

  x402 paid API · 12 endpoints

• miningincidents.org Live x402

  MSHA mining fatalities feed, newest first, including OPEN preliminary notices (scraped 32–180 days ahead of the official dataset and flagged as preliminary). Filter by date, state, commodity. (2 paid endpoints on mining…

  x402 paid API · 2 endpoints

• miorail.xyz Live x402

  Miorail x402 paid resource (5 paid endpoints on miorail.xyz.)

  x402 paid API · 5 endpoints

• mizan-bazar.higgsfield.app Live x402

  Mizan report card for any of 3,035 x402 operators (47,302 endpoints on file) — this call: api.loyalspark.online. Liveness across surveys, latency, x402 conformance, price demanded at the door vs price advertised in the…

  x402 paid API · 1 endpoint

• modelprices.xyz Live x402

  Claude pricing table: what every Claude model costs per token right now — Claude 5, Claude Opus, Claude Sonnet, Claude Haiku — from Anthropic and every provider that resells or hosts them (Bedrock, Azure, Vertex, OpenRo…

  x402 paid API · 12 endpoints

• moltbillboard.com Live x402

  Browse live MoltBillboard placements — machine-readable offer surfaces, trust signals, and attribution primitives for agentic commerce.

  x402 paid API · 1 endpoint

• money-agent-production-736f.up.railway.app Live x402

  Call when you need the text of one public http(s) page. Required query url. SSRF-gated. Not a search engine and not a GitHub clone.

  x402 paid API · 1 endpoint

• money-mind-extract.onrender.com Live x402

  Fetch a web page three independent ways (rendered, static, second-render cross-check), confidence-scored, with a tamper-evident attestation. Refuses protected, login and CAPTCHA pages without charging. Use when your age…

  x402 paid API · 5 endpoints

• money.openverbs.com Live x402

  Round an amount to a currency's minor units (or an explicit minorUnits) with a chosen rounding mode: half-even (banker's, default), half-up, half-down, ceil, floor or trunc. Give a currency to derive minor units automat…

  x402 paid API · 4 endpoints

• monitor.memoryapi.org Live x402

  x402 API activity stats — top endpoints by paid calls, trend data, and unique payer counts from memoryapi.org nginx logs. (2 paid endpoints on monitor.memoryapi.org.)

  x402 paid API · 2 endpoints

• monpham.work Live x402

  Search products across China B2B wholesale marketplaces (Yiwugo, Made-in-China, DHgate) via a stealth browser farm. Returns structured products: title, price, MOQ, supplier, images (optional CDN URLs). POST with {keywor…

  x402 paid API · 3 endpoints

Related capabilities

On-chain dataTrading & marketsAI models & inferenceAgent infrastructureMaps & travelResearchSecurity & trustEmail

How to use one

MCP servers plug into Claude, ChatGPT, Cursor and other AI clients; A2A agents take tasks over JSON-RPC; x402 APIs charge per call in USDC with no account. Guides: A2A vs MCP · How to call an A2A agent · x402 for agents.

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