Roundhouse

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 call217,972 priced of 219,976 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
219,976 services matched
ActivityAgent
Any
Any
Any
Health Data Sharing Score APIData
orbisapi.com
Score health data sharing agreement completeness
$0.0050—12622Offline
Property Data Quality Score APIData
orbisapi.com
Score property listing data completeness and accuracy
$0.050—12619Offline
Crash Data Quality Score APIData
orbisapi.com
Score traffic crash data completeness and coding quality
$0.050—12518Offline
Data Breach Cost Calculator APIData
orbisapi.com
Estimate data breach costs from scope and industry data
$0.050—12520Offline
orbisapi.comData
orbisapi.com
Score pain treatment response from outcome measure data
$0.0050—12516Offline
x402.orthogonal.comSearch
x402.orthogonal.com
Discover, call, and pay for 800+ endpoints from 50+ verified providers, through one integration. Pay per call, no subscription.
$0.0020—12512Live
Data Classification Score APIData
orbisapi.com
Score data classification coverage and accuracy
$0.0050—12420Offline
Email Deliverability Score APIData
orbisapi.com
Score email deliverability from domain and content signals
$0.0050—12419Offline
Neuropathic Pain Score APIData
orbisapi.com
Score neuropathic pain probability from symptom pattern
$0.0050—12419Offline
orbisapi.comData
orbisapi.com
Score supply chain human rights due diligence quality
$0.050—12420Offline
GitHub Repo & User DataSearch
api.kadec0.xyz
GitHub data. Repository stats, user profiles, and code-search results (stars, forks, language, topics, issues) via the GitHub REST API.
$0.020—1235Live
Billing Failure Score APIData
orbisapi.com
Score billing failure risk from card type and history data
$0.0050—12320Offline
Metadata Completeness Score APISearch
orbisapi.com
Score research metadata completeness and standardization
$0.0050—12317Offline
Crypto priceTrading
agent402.tools
Live spot price for one or many coins in any quote currency: last price, 24h change, 24h volume and market cap per coin, from a maintained market feed and answered in under a second. Use it when an ag…
$0.0010—12215Live
Email Validation APISocial
api.kadec0.xyz
Email validation and email list cleaning. Checks each email address for RFC syntax, a live MX record lookup returning the real mail hosts, disposable-domain detection, role-account flags (info@, sales…
$0.030—1223Live
Regex Tester APIInfra
orbisapi.com
Test, match, replace, and validate regex patterns with common presets.
$0.050—12221Offline
Sustainability PLM Score APIData
orbisapi.com
Score sustainability data integration in PLM systems
$0.0050—12218Offline
Cult OS Developer ToolsOther
www.cultos.dev
Open-source infrastructure for the agent economy. Hire developer services over x402 or build with the Cult OS stack and Virtuals ACP.
$0.0010—12232Live
Crypto Token Price DataTrading
api.kadec0.xyz
Crypto token price and market data. Returns the live price of one or many tokens by coin id or ticker symbol, in a chosen vs-currency, with market cap, 24-hour volume, and 24-hour price change. For cr…
$0.010—1217Live
orbisapi.comInfra
orbisapi.com
Classify bloodstain patterns by impact and origin type
$0.0050—12117Offline
Hot Aisle Containment Score APIData
orbisapi.com
Score hot aisle containment effectiveness from temperature data
$0.0050—12119Offline
orbisapi.comInference
orbisapi.com
Calculate maximum sustainable yield from population model data
$0.0050—12118Offline
Train Speed Calculator APIInfra
orbisapi.com
Calculate train journey times from distance and service type
$0.0050—12118Offline
api.strale.ioData
api.strale.io
Check if a person or entity is on sanctions lists (EU, US OFAC, UN, UK OFSI, Swiss SECO, BIS, World Bank, EBRD, ADB + 125 national lists). Uses Dilisense consolidated database. Returns audit-grade evi…
$0.216—1201Live
api.x402node.devTrading
api.x402node.dev
x402node — precise, deterministic developer and data tools for AI agents. Chain data, parsing, crypto, conversion. Pay-per-call over x402, settled in USDC on Base.
$0.010—12021Live

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. 219,976 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.