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 call217,264 priced of 219,268 matched · 3,946 providers

$0.010

Median

$0.0020$0.050

$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

219,268 services matched


	Any	Any			Any
api.onesource.ioOther api.onesource.io Simulate a read-only Ethereum contract call via eth_call - no transaction sent	$0.0050	—	133	133	Live
api.onesource.ioOther api.onesource.io Ethereum mainnet, Sepolia testnet, and Robinhood Chain RPC for AI agents, served from OneSource-operated nodes. Live block, balance, contract, NFT, transaction, and event data. Pay per call or use bat…	$0.0030	—	133	133	Live
api.onesource.ioTrading api.onesource.io Two data families for AI agents: live Ethereum mainnet, Sepolia testnet, and Robinhood Chain RPC reads, plus Deepstate on-chain market data — order books, trades, candles, and analytics. Pay per call…	$0.020	—	133	133	Live
Flavor Pairing Score APIData orbisapi.com Score ingredient flavor pairings based on compound compatibility	$0.0050	—	133	21	Offline
Stress Strain Calculator APIData orbisapi.com Calculate stress strain and Young modulus from material data	$0.0050	—	133	18	Offline
gateway.spraay.appSocial gateway.spraay.app Send crypto to 200+ recipients in a single transaction. Batch ETH and ERC-20 payments on Base. Integrated with Google ADK and AWS Strands.	$0.010	—	132	6	Live
NetIntelSearch netintel.dev Extract web content from any page or PDF as clean Markdown — web page text, HTML to Markdown for any URL: strips scripts, nav, ads, and boilerplate while preserving headings, links, lists, tables, cod…	$0.0030	—	132	12	Live
Claim Detector APIInfra orbisapi.com Detect verifiable factual claims in news and opinion text	$0.0050	—	132	18	Offline
Indoor Air Quality Score APIData orbisapi.com Score indoor air quality from sensor measurement data	$0.0050	—	132	21	Offline
Mail Screening Score APIData orbisapi.com Score mail and package screening protocol thoroughness	$0.0050	—	132	21	Offline
Agricultural AI Accuracy APIData orbisapi.com Score agricultural AI prediction accuracy from field validation	$0.0050	—	131	18	Offline
Chronic Pain Classifier APIData orbisapi.com Classify chronic pain syndrome type from clinical data	$0.0050	—	131	19	Offline
Clinical Data Quality Score APIData orbisapi.com Score clinical trial data quality from error rate metrics	$0.0050	—	131	20	Offline
Daily Report Parser APIData orbisapi.com Parse construction daily reports into structured progress data	$0.0050	—	131	22	Offline
Data Classification Engine APIData orbisapi.com Detect and classify PII, PHI, PCI, and credentials in text — SSN, credit cards, emails, medical codes.	$0.0050	—	131	18	Offline
EarnFi Agent APISocial orbisapi.com On-demand human workforce for AI agents. Create social tasks, custom jobs, contests, token-gated tasks & campaigns, etc.	$0.042	—	131	12	Offline
Pain Catastrophizing Score APIData orbisapi.com Score pain catastrophizing from psychological assessment	$0.0050	—	131	19	Offline
Train-Test Split Calculator APIData orbisapi.com Calculate train/validation/test split sizes with warnings and common split ratio comparisons.	$0.0050	—	131	19	Offline
orbisapi.comInference orbisapi.com Calculate compliance training completion rates by role	$0.0050	—	131	20	Offline
orbisapi.comData orbisapi.com Score farm sustainability certification gap assessment	$0.0050	—	130	19	Offline
Jailbreak Detector APIInference orbisapi.com Detect jailbreak and prompt injection attempt patterns	$0.0050	—	130	20	Offline
orbisapi.comInference orbisapi.com Calculate optimal model retraining trigger thresholds	$0.0050	—	130	20	Offline
Claim Breadth Score APIData orbisapi.com Score patent claim breadth from independent claim analysis	$0.0050	—	129	16	Offline
orbisapi.comInfra orbisapi.com Calculate container resource requests from application profile	$0.0050	—	129	22	Offline
Dark Web Monitoring Score APIData orbisapi.com Score dark web monitoring coverage effectiveness	$0.0050	—	129	19	Offline

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. 219,268 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://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.