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.

Compare by capability

x402 call market

Listed price · per call12,087 priced of 12,089 matched · 143 providers

$0.010

Median

Every matched service lists the same price, so there is no range to plot.

$0.010
p25: $0.010
p75: $0.0000
low: $9.00
high

Listed prices only — what a service asks, not what it was paid.

CategoryAll categories

12,089 services matched


	Any	Any			Any
api.stablecoingateways.comInfra api.stablecoingateways.com	$0.0050	—	—	—	Unknown
api.stablecoingateways.comInfra api.stablecoingateways.com	$0.0020	—	—	—	Unknown
api.stablecoingateways.comInfra api.stablecoingateways.com	$0.0030	—	—	—	Unknown
BrandfetchMedia api.staging.brandfetch.io Provision standing Brandfetch API access: pay N whole US dollars (?usd=N, 1–500) to receive an API key preloaded with 20 API credits per dollar. Paying again from the same wallet tops the same key up.	$1.00	—	—	—	Unknown
BrandfetchMedia api.staging.brandfetch.io Transaction API: the brand behind a card or bank statement line — logos, colors, fonts, images and company data — from the transaction label and the country the purchase was made in.	$0.100	—	—	—	Unknown
tokenizen ownership receiptsOther api.tokenizen.nl Ownership verification with a signed receipt. The receipt is the product: the same answer is available for free at /api/verify-ownership.	$0.0010	—	—	—	Unknown
WitnessoryOther api.witnessory.org One fresh post-quantum check of a public website, signed (Ed25519 and ML-DSA-65)	$0.010	—	—	—	Unknown
WitnessoryOther api.witnessory.org Up to 20 fresh post-quantum checks in one request, each signed	$0.100	—	—	—	Unknown
WitnessoryOther api.witnessory.org Evidence snapshot: up to 10 hostnames, results in the answer, the signed and anchored report within the hour	$9.00	—	—	—	Unknown
AgentPay IntelligenceSearch api.x402-engine.com Admission of one automated evidence-backed intelligence job	$0.500	—	—	—	Unknown
apiv2.devitas.chOther apiv2.devitas.ch	$0.100	—	—	—	Unknown
apiv2.devitas.chData apiv2.devitas.ch Tick data · 1 files · one-off dataset purchase	$1.00	—	—	—	Unknown
arxiv-testnet.scrapemole.workers.devSearch arxiv-testnet.scrapemole.workers.dev Use when you need a compact abstract card for an arXiv id without full affiliation/journal/comment fields: returns id, title, summary, author names only, primary category, published/updated, absUrl an…	$0.0020	—	—	—	Unknown
arxiv-testnet.scrapemole.workers.devSearch arxiv-testnet.scrapemole.workers.dev Use when you want the latest or relevance-ranked papers in one arXiv subject class: pass cat (e.g. cs.AI, quant-ph, stat.ML). Returns up to 25 papers with the same fields as search, plus totalResults…	$0.0030	—	—	—	Unknown
arxiv-testnet.scrapemole.workers.devSearch arxiv-testnet.scrapemole.workers.dev Use when you have an arXiv id (new-style like 1706.03762 or with version 1706.03762v7, or old-style like hep-ex/0307015) and need its public metadata card: title, abstract/summary, authors with affili…	$0.0020	—	—	—	Unknown
arxiv-testnet.scrapemole.workers.devSearch arxiv-testnet.scrapemole.workers.dev Use when you need to discover arXiv e-prints by keyword, title, author or field query: pass any arXiv search_query string (e.g. "transformer attention", "au:vaswani", "ti:\"attention is all you need\"…	$0.0030	—	—	—	Unknown
baobao.memeOther baobao.meme	$0.0020	—	—	—	Unknown
baobao.memeOther baobao.meme	$0.010	—	—	—	Unknown
beats-wolf-agencies-msgstr.trycloudflare.comInfra beats-wolf-agencies-msgstr.trycloudflare.com Analyze a Base Sepolia EVM contract address for runtime bytecode, common privileged function selectors, minimal-proxy patterns, and EIP-1967 implementation/beacon slots. Use when an agent needs a fast…	$0.0010	—	—	—	Unknown
brain.testnet.usebrainchain.comOther brain.testnet.usebrainchain.com	$1.00	—	—	—	Unknown
btc-radar.vercel.appOther btc-radar.vercel.app	$0.010	—	—	—	Unknown
btc-radar.vercel.appOther btc-radar.vercel.app	$0.010	—	—	—	Unknown
btc-radar.vercel.appOther btc-radar.vercel.app	$0.010	—	—	—	Unknown
butterflydelta.comData butterflydelta.com Identify which explicit assumptions behind an intended crypto action were pressured by verified external changes since the caller's checkpoint.	$0.0010	—	—	—	Unknown
butterflydelta.comOther butterflydelta.com Check which explicit assumptions became stale before an autonomous machine commits a consequential action.	$0.0010	—	—	—	Unknown

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. 12,089 catalog entries indexed.

Open skill.md

Show 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://preview.roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://preview.roundhouseai.io/skill.md first — it is the whole procedure.