Services
The x402 service directory, ranked by verified on-chain volume. Add one to an agent as a skill and pay per call — no key, no account. To compare every seller of one job on a shared price, see Unified Services.
x402 call market
Listed price · per call256,082 priced of 258,509 matched · 4,047 providers
$0.010
Median
$0.0020$0.040
- $0.0050
- p25
- $0.010
- p75
- $0.0000
- low
- $1,000,000.00
- high
The box is the middle half of the market, $0.0050 to $0.010; the whiskers reach the 10th and 90th percentiles and the axis between them is logarithmic. Listed prices only — what a service asks, not what it was paid.
CategoryAll categories
258,509 services matched
| Activity | Agent | ||||||
|---|---|---|---|---|---|---|---|
Any | Any | Any | |||||
agentsvc.io Postal codes for 70 countries (GeoNames via zippopotam.us): postal code to place names, state and coordinates, or city + state to all its postal codes. For GB, CA and IE only the outward part (e.g. SW… | $0.0025 | — | 14 | 4 | Live | ||
agentsvc.io Live Polymarket prediction markets: outcome probabilities, 24h volume, liquidity, 24h price change and end date. Search by topic (query, e.g. 'bitcoin', 'election', 'fed rate') or omit query to get th… | $0.0090 | — | 14 | 3 | Live | ||
agentsvc.io Look up a product by EAN/UPC barcode in Open Food Facts, Open Beauty Facts and Open Products Facts: name, brand, quantity, categories, ingredients, allergens, labels, nutrition per 100 g, Nutri-Score,… | $0.0050 | — | 14 | 4 | Live | ||
agentsvc.io Answer a question when you have no URL yet: searches Wikipedia (source 'web') or recent news articles (source 'news') and returns the top 1 to 5 result pages already read as clean Markdown, with title… | $0.0050 | — | 14 | 4 | Live | ||
agentsvc.io Website crawler: read a whole website or one section of it (for example every page under /docs) as clean Markdown: starts at a URL, follows same-site links breadth-first and returns up to 20 pages wit… | $0.0050 | — | 14 | 4 | Live | ||
agentsvc.io List the URLs of a website without reading them: robots.txt, sitemaps and sitemap indexes plus homepage links, up to 1,000 same-site URLs with lastmod and source. A cheap first step to decide which pa… | $0.0025 | — | 14 | 4 | Live | ||
agentsvc.io Detect the technologies a website uses (CMS, frameworks, analytics, CDN, web server, ecommerce, tag managers ...) from its HTML, headers, cookies, meta tags and script URLs, matched against 7,600+ ope… | $0.0090 | — | 14 | 4 | Live | ||
agentsvc.io Validate an EU VAT identification number live against the official EU VIES service, with registered company name and address where the member state discloses them. Checks the national format first. No… | $0.0045 | — | 14 | 4 | Live | ||
agentsvc.io Decode a 17-character vehicle identification number with NHTSA vPIC: make, model, model year, trim, body, doors, engine (cylinders, displacement, hp, fuel, electrification), drive, transmission, manuf… | $0.0035 | — | 14 | 4 | Live | ||
agentsvc.io Read 2 to 5 pages whose URLs you already know in one call, each as clean Markdown with title and description, fetched in parallel. Cheaper and faster than calling web-scrape once per URL; for 6 to 20… | $0.0050 | — | 14 | 4 | Live | ||
api.aiskills402.com Tested SKILL.md files that AI agents buy once over x402, paid in USDC on Base. Yours forever, with free re-downloads and new versions. | $0.050 | — | 14 | 3 | Live | ||
api.api-agent-ia.ch Need clean data from messy text? Extracts structured JSON with AI from up to 8000 characters (POST {"text"}): a product (name, price, features), an email (sender, recipients, subject, date, summary, a… | $0.010 | — | 14 | 2 | Live | ||
api.api-agent-ia.chOther api.api-agent-ia.chWhich token is behind this contract? Returns the name, symbol, decimals and total supply of an ERC-20 token on Base ($0.003 per call). | $0.0030 | — | 14 | 1 | Offline | ||
api.api-agent-ia.ch Does this wallet have a readable name? Returns the primary ENS name of an address on Ethereum mainnet, or null if it has none ($0.002 per call). | $0.0020 | — | 14 | 3 | Live | ||
api.api-agent-ia.chOther api.api-agent-ia.chDid this Base transaction go through? Returns succes, echec or en_attente, plus block, confirmations, sender, recipient and gas used once mined; unknown hashes return 404 and are not charged ($0.002 p… | $0.0020 | — | 14 | 1 | Offline | ||
api.avedaris.com Normalize an email address for matching: send an address and get its local part, domain and a lowercase comparison form. Syntax only; it does not verify the mailbox. Pair with email-auth-check for the… | $0.0010 | — | 14 | 6 | Live | ||
api.avedaris.com Parse a query string: send ?a=1&b=2&a=3 style text and get ordered key/value entries and values grouped by key. $0.001 USDC per call on Base. | $0.0010 | — | 14 | 6 | Live | ||
api.avedaris.com Check a UUID: send a string and get whether it is a valid UUID plus its version and variant. $0.001 USDC per call on Base. | $0.0010 | — | 14 | 6 | Live | ||
api.commodities.sh Primary-source commodities reference API for AI agents — EIA, FRED, CFTC, USDA via x402 USDC on Base. Inventories, cash, COT, and structure with ruthless freshness labels. | $0.010 | — | 14 | 8 | Live | ||
api.craigmbrown.comTrading api.craigmbrown.com$0.01 queryable trust badge for an agent holding a BlindOracle passport: AUDITED when an in-date BlindOracle security audit of its code is on record (with risk score, proof id and expiry), otherwise i… | $0.010 | — | 14 | 7 | Live | ||
api.delx.ai Delx is an independent technology studio building agent continuity, personal-state infrastructure, and focused software. | $0.030 | — | 14 | 1 | Live | ||
| $0.0050 | — | 14 | 1 | Live | |||
| $0.010 | — | 14 | 1 | Live | |||
| $0.0050 | — | 14 | 1 | Live | |||
api.generalrelay.xyz Real-time maritime data, paid per call. Ask for a vessel by MMSI and get its position and metadata. | $0.020 | — | 14 | 1 | Live |
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will find and price a paid API you can call over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
Verified volume and provider trust are Roundhouse-only signals; activity is settlements to the service's payee wallet over 30 days, 5-day smoothed. 258,509 catalog entries indexed.
Show the promptHide the prompt
Using Roundhouse, find x402 endpoints that can do what I need, tell me what each call costs, and whether the endpoint answered when last probed. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=<what-you-need>' Then check the merchant's real payment record before paying: curl -s 'https://api.roundhouseai.io/v0/merchants/<payTo-wallet>' Always read the price from the live 402, never from a cached figure. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.