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

Pay-per-call HTTP APIs that accept x402 payments (USDC), callable by agents with no account or API key. 1223 listings in the Rooms directory, 1213 answering our latest daily check. Each one links to its endpoint, how to call it and its live status.

kronossignals.com Live x402
Crypto funding-rate extremes screener: scans all 17 perpetual futures markets (BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT/HYPE). Uses z-score (30-day baseline) to identify statistically extreme…
x402 paid API · 12 endpoints
kyp-model.ai Live x402
One paid call on kyp-model.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…
x402 paid API · 1 endpoint
labor.lonestaroracle.xyz Live x402
US labor-market signal (jobs, unemployment, wages, JOLTS)
x402 paid API · 1 endpoint
lab.paidapis.net Live x402
Aggregated market snapshot: Ethereum mainnet gas price (Gwei), ETH/USD spot price, and the latest Base mainnet block number and timestamp — combined into one call. Optional ?ref=<address> pays that wallet a 20% referral…
x402 paid API · 7 endpoints
ladyfortunalx402.vercel.app Live x402
Get a random fortune via x402 payment on Base mainnet.
x402 paid API · 1 endpoint
lastlookdata.com Live x402
LastLook Data — current 30-year US Treasury yield (DGS30). Alias for /api/current?id=DGS30. (4 paid endpoints on api.lastlookdata.com.)
x402 paid API · 4 endpoints
latitude10.tech Live x402
Meridian: a design system for SaaS products people use all day: admin consoles, CRMs and internal tools. Calm, neutral and precise: Manrope headlines over Inter, Meridian Teal with one Burnt Amber accent, tone rather th…
x402 paid API · 2 endpoints
lauf.halowerk.com Live x402
Loads a public https page, finds the requested form, fills your values into it in a real headless browser and reports what a submission would run into — without submitting. Each field is checked against what the page it…
x402 paid API · 7 endpoints
launches.lonestaroracle.xyz Live x402
New token launch scanner — Base and EVM chains, real-time pool data
x402 paid API · 1 endpoint
leetspeak-translator.underscoredone.com Live x402
Takes a piece of text and either turns it into leetspeak (swapping some letters for numbers and symbols, like 'hello' becoming 'h3110') or turns leetspeak back into normal, easy-to-read words. The same words always prod…
x402 paid API · 1 endpoint
lemonade-stand.pt Live x402
A vegan lemonade: lemons, water and ice, served as an illustrated collectible card: a 400x560 SVG image of a cold glass of lemonade with a straw. One GET request, no input; returns the card as image/svg+xml. (4 paid end…
x402 paid API · 4 endpoints
library.forgemesh.io Live x402
Deterministic daily book pick from the indexed corpus, date-seeded so every caller gets the same answer on the same day. Optional date override for backfill. Returns book_id and drill-down routes. No license, no API key…
x402 paid API · 6 endpoints
library.proofivy.com Live x402
Get list of all available CryptoSlate content URLs with their last updated dates (4 paid endpoints on library.proofivy.com.)
x402 paid API · 4 endpoints
linkedpanda.com Live x402
LinkedIn profile search results page (10 paid endpoints on api.linkedpanda.com.)
x402 paid API · 10 endpoints
linklens-sand.vercel.app Live x402
Extract metadata and readable text from a public URL.
x402 paid API · 1 endpoint
lion-x402-bible.lionmaster-operations.workers.dev Live x402
Is this crypto wallet sanctioned? Instant OFAC SDN address screen for AI agents. Returns PASS/WARN/BLOCK. $0.001 Base USDC, keyless x402. Ed25519-attested. Upsell: full counterparty bundle $0.05. (3 paid endpoints on li…
x402 paid API · 3 endpoints
lion-x402.lionmaster-operations.workers.dev Live x402
Keyless multi-chain JSON-RPC reads, Base + Ethereum, from $0.001 (?chain=ethereum) (2 paid endpoints on lion-x402.lionmaster-operations.workers.dev.)
x402 paid API · 2 endpoints
liquidstate.tech Live x402
Decision Leg invalidations. Per-call USDC. (2 paid endpoints on www.liquidstate.tech.)
x402 paid API · 2 endpoints
liquita-x402-edge.liquita.workers.dev Live x402
Real-time at-risk DeFi borrowers across Aave V3, Morpho, Comet, Euler V2, Fluid, Moonwell, Spark on 11 EVM chains. Returns health factor, collateral, debt, and protocol. Updated every 5 minutes from the liquita liquidat…
x402 paid API · 2 endpoints
locus.report Live x402
Returns cited land use, acreage, year built and legal jurisdiction for an address or jurisdiction-scoped parcel id. Returns the same records as locus_parcel_lookup. Use this when your client can only call paid x402 rout…
x402 paid API · 2 endpoints
long.events Live x402
LONG Events events API: global electronic-music event discovery with structured artists. Actions: discover, list, stats, catalog_stats, spotlight_candidates, get_sets, get_now_playing, get_schedule, search_artists, get_…
x402 paid API · 2 endpoints
longwatch.dev Live x402
This-session snapshot only — no watch, no cursor. Use when you will not come back. Required by type: url/rss/x402 need url; price needs coin plus above, below, or move_pct_24h; edgar needs ticker or cik. 8-K items are d…
x402 paid API · 1 endpoint
loopholetape.com Live x402
New Solana tokens as they launch on pump.fun: a cursor feed of new memecoin launches with rug probability and graduation odds ($0.001 per poll). Use when a bot polls for newly launched Solana tokens on pump.fun with the…
x402 paid API · 6 endpoints
losbeto.xyz Live x402
LLM inference as a pay-per-call commodity — ask anything (?q=...) and get the first live answer from a multi-provider failover chain (Groq, Gemini, paid tiers when configured). One flat price, any subject, no API keys..…
x402 paid API · 12 endpoints
lotusnetworkapi.com Live x402
Read-only Base L2 gas conditions computed directly from chain data: current base fee, recent percentiles, realised volatility, congestion state, and an 80% forecast range for a chosen horizon. This is supporting context…
x402 paid API · 1 endpoint
lucidcove.org Live x402
Settlement canary: returns a timestamped pong JSON after USDC micropayment. Use to verify x402 client + wallet + facilitator end-to-end.
x402 paid API · 1 endpoint · check 88/100
m2msentinel.com Live x402
How deep is liquidity for tracked Base tokens and how much is actually trading, with the source named, for sizing an order or declining one. (3 paid endpoints on api.m2msentinel.com.)
x402 paid API · 3 endpoints
macaddress.openverbs.com Live x402
Generate a random EUI-48 MAC address. By default it is locally-administered and unicast (safe for testing); set `local:false` for a universal-bit address or `multicast:true` for a group address. (5 paid endpoints on mac…
x402 paid API · 5 endpoints
macaroonnetwork.com Live x402
Discover which Macaroon Network service, endpoint, or data product to call next. Searches Macaroon's own published catalogue -- title, category, description, price, and trust evidence metadata -- and returns a short, so…
x402 paid API · 12 endpoints
machina.pay.zeroclick.io Live x402
Tournament fixtures, filterable by team, opponent, and date range. (4 paid endpoints on machina.pay.zeroclick.io.)
x402 paid API · 4 endpoints
machine-commerce-lab.machinecommercelab.workers.dev Live x402
Read-only public DNS lookup report (2 paid endpoints on machine-commerce-lab.machinecommercelab.workers.dev.)
x402 paid API · 2 endpoints
machinemint-native-x402-production.up.railway.app Live x402
Check an unsigned Base mainnet transaction before signing or broadcasting. Simulates with eth_call, estimates gas, checks sender balance and target bytecode, decodes supported token transfers and approvals, flags unlimi…
x402 paid API · 1 endpoint
macropulse.theaslangroupllc.com Live x402
Is the stock market open right now? Deterministic market-status and trading-hours for the major global exchanges — NYSE, NASDAQ, LSE, Xetra, Euronext, TSE/JPX, HKEX, SSE, ASX, TSX, SIX, NSE/BSE. Returns is_open plus why…
x402 paid API · 2 endpoints
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
marketintelligenceapi.com Live x402
Crypto buying pressure ranking: assets under aggressive buying, ranked by buy pressure from the exact taker side of every on-chain swap (arbitrage, MEV and bot trades excluded), plus volume, imbalance and price change.…
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

Related capabilities

On-chain data Trading & markets Agent infrastructure AI models & inference Research Maps & travel Security & trust Web scraping

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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