Dev Utilities Pay-Per-Call AI Services
440 paid services found. Status, reliability and price come from our own test calls. Open any row for the full record.
| Service | Category | Status | Recent Checks OK | Response Time | Price Per Call | Last Checked |
|---|---|---|---|---|---|---|
| www.api-xpay.com Health check ping | Dev Utilities | Live | 20/20 | 394 ms | $0.005 | 4 min ago |
| api.oblique.markets Use when an agent needs a trusted UTC timestamp or the smallest end-to-end test of its x402 payment client. R… | Dev Utilities | Live | 20/20 | 248 ms | $0.01 | 4 min ago |
| rubric-protocol.com Unforgeable operating history for any AI agent attesting through TenPrint: record count, first-seen date, con… | Dev Utilities | Live | 20/20 | 411 ms | $0.005 | 4 min ago |
| quartermaster.surewhynot.app Resolve DNS records using DNS-over-HTTPS and return structured JSON for infrastructure, security, and agent w… | Dev Utilities | Live | 20/20 | 495 ms | $0.001 | 4 min ago |
| x402.problocks.io Verify payment connectivity with USDC on Base. Returns a JSON pong and UTC timestamp after settlement. | Dev Utilities | Live | 20/20 | 446 ms | $0.001 | 4 min ago |
| agent.connskill.com Keyword suggestions for a seed keyword, with search volume and CPC | Dev Utilities | Live | 20/20 | 570 ms | $0.03 | 4 min ago |
| open-pay.jp End-to-end smoke test for x402 clients: returns a greeting plus the settlement timestamp, so an agent can pro… | Dev Utilities | Live | 20/20 | 282 ms | $0.001 | 4 min ago |
| api.gitbeacon.dev Paid ($0.01 USDC via x402). Top trending GitHub repos from the latest daily scan, sorted by stars — descripti… | Dev Utilities | Live | 20/20 | 386 ms | $0.01 | 4 min ago |
| x402-trust.com Trust score (0-100, grade A-F) for any x402 endpoint, cataloged or not: 30d uptime, 402-envelope compliance, … | Dev Utilities | Live | 20/20 | 381 ms | $0.005 | 4 min ago |
| jmt-x402-proxy.jmthomasofficial.workers.dev Raw RDAP registration record for a domain, returned as structured JSON. | Dev Utilities | Live | 20/20 | 500 ms | $0.002 | 4 min ago |
| api.vrsai.tech Check an exact npm or PyPI package version immediately before installation using current registry, vulnerabil… | Dev Utilities | Live | 20/20 | 152 ms | $0.01 | 4 min ago |
| paddock.finance Agent payments have no chargeback. Paddock is pre-payment verification for AI agents. get_niche_gaps ranks ca… | Dev Utilities | Live | 20/20 | 254 ms | $0.01 | 4 min ago |
| registry.wickedapi.com List and search scored x402/MCP tools | Dev Utilities | Live | 20/20 | 562 ms | $0.01 | 4 min ago |
| api.x402lint.dev Paid ($0.05). ALWAYS runs a fresh 25-check scan of the origin (non-settling GET/HEAD + benign empty-POST prob… | Dev Utilities | Live | 20/20 | 373 ms | $0.05 | 4 min ago |
| x402-factory.com Cheapest endpoint: liveness plus x402 payment pipeline check — Returns ok with the server time and whether th… | Dev Utilities | Live | 20/20 | 304 ms | $0.001 | 4 min ago |
| execbox.xyz Execute code in any supported language. 5s CPU timeout, 128MB RAM. Supports 40+ languages including Python, J… | Dev Utilities | Live | 20/20 | 406 ms | $0.002 | 4 min ago |
| dns.use.x402atlas.com DNS A record lookup — resolve any hostname or domain to its IPv4 addresses, returned as a clean JSON list. Fo… | Dev Utilities | Live | 20/20 | 417 ms | $0.005 | 2 min ago |
| agent.kihustle.tech Deterministic JSON repair for agent tool outputs, with optional JSON Schema validation. Built for tight agent… | Dev Utilities | Live | 20/20 | 144 ms | $0.01 | 2 min ago |
| api.sitecheck-api.workers.dev Company contact enrichment from a domain: emails (same-domain flagged), phones, social profiles, description … | Dev Utilities | Live | 20/20 | 988 ms | $0.01 | 2 min ago |
| aizamon.com Proves an x402 client can finish 402, sign, settle, and read the result on Base. Optional ?echo= is returned.… | Dev Utilities | Live | 20/20 | 289 ms | $0.01 | 2 min ago |
| payload402.edgebytenet.workers.dev English Wikipedia fact lookup: search by query or exact title, returns intro extract as plain text. For agent… | Dev Utilities | Live | 20/20 | 614 ms | $0.001 | 2 min ago |
| mart402.com Web extraction for AI agents: URL to clean Markdown + metadata, automatic JS rendering, robots.txt respected.… | Dev Utilities | Live | 20/20 | 304 ms | $0.005 | 2 min ago |
| shield.vainplex.dev ShieldAPI - x402 security preflight before agents accept or store credential material | Dev Utilities | Live | 20/20 | 866 ms | $0.001 | 2 min ago |
| ssl.use.x402atlas.com SSL/TLS certificate check: expiry, issuer, SANs, chain validity, hostname match, negotiated protocol/cipher, … | Dev Utilities | Live | 20/20 | 347 ms | $0.01 | 2 min ago |
| api.onhub.ai Writes and runs Python to compute or verify an answer, returning the code, its output, and a final answer. | Dev Utilities | Live | 20/20 | 562 ms | $0.015 | 2 min ago |
| agents.supremeai.ca Probe a public HTTP(S) URL and report availability: up/down, HTTP status, and latency in ms. Use it to check … | Dev Utilities | Live | 20/20 | 81 ms | $0.003 | 2 min ago |
| api.flipvo.com Cheapest possible paid call: proves your wallet, our 402, and the receipt path work. Returns pong and a times… | Dev Utilities | Live | 20/20 | 96 ms | $0.001 | 2 min ago |
| percallapi.com Lookup WHOIS records and domain availability in JSON format. Provide the domain name via ?domain=example.com … | Dev Utilities | Live | 20/20 | 139 ms | $0.01 | 2 min ago |
| straits.live Everything the Strait of Hormuz crisis monitor knows in one call: verdict, oil, transits, insurance, carriers… | Dev Utilities | Live | 19/20 | 266 ms | $0.02 | 2 min ago |
| x402.klimalabs.com Entry point to the x402 Carbon Retirement API on Base. Returns every endpoint you need plus a live snapshot o… | Dev Utilities | Live | 20/20 | 347 ms | $0.001 | 2 min ago |
| machine-commerce-lab.machinecommercelab.workers.dev Read-only public DNS lookup report | Dev Utilities | Live | 20/20 | 368 ms | $0.01 | 2 min ago |
| x402-echo-service.onrender.com Generate cryptographically random UUIDv4 identifiers. POST {"count":10} and receive that many unique v4 UUIDs… | Dev Utilities | Live | 20/20 | 125 ms | $0.001 | 2 min ago |
| geodns.iwsolutions.ca Geo-located DNS resolution — resolve hostnames from specific countries to see how CDNs, geo-blocking, and DNS… | Dev Utilities | Live | 20/20 | 107 ms | $0.005 | 2 min ago |
| unwrap.use.x402atlas.com Trace an HTTP redirect chain to its final destination without downloading page bodies. Returns every hop (URL… | Dev Utilities | Live | 20/20 | 356 ms | $0.009 | 2 min ago |
| coinslot.dev Check an email address: RFC syntax, live MX records via DNS-over-HTTPS, and disposable-domain screening. POST… | Dev Utilities | Live | 20/20 | 174 ms | $0.003 | 2 min ago |
| eltociear-skill-audit.hf.space Resolve a domain's DNS records (A/AAAA/MX/NS/TXT/CNAME) and flag basic email/security posture | Dev Utilities | Live | 20/20 | 260 ms | $0.006 | 2 min ago |
| agenticfinancegraph.com Where I pay: Counterparties, 30-day USD, rail split, idle flag, top-counterparty share. Computed from the fre… | Dev Utilities | Live | 20/20 | 665 ms | $0.05 | 32 min ago |
| dns-intel-api-production.up.railway.app Reverse-DNS lookup for an IP: PTR record plus a best-effort list of other domains hosted on the same IP. | Dev Utilities | Live | 20/20 | 221 ms | $0.002 | 32 min ago |
| money-agent-production-736f.up.railway.app Call when you need the text of one public http(s) page. Required query url. SSRF-gated. Not a search engine a… | Dev Utilities | Live | 20/20 | 252 ms | $0.01 | 32 min ago |
| settled.tools Verified agent-income listings: open bounties and tasks from sanctioned venue APIs (Taskmarket, Superteam Ear… | Dev Utilities | Live | 20/20 | 710 ms | $0.01 | 32 min ago |
| x402.cloudpulsepoint.com Fetch a URL and report whether it is reachable, the HTTP status code, and the response time in milliseconds. … | Dev Utilities | Live | 20/20 | 324 ms | $0.01 | 32 min ago |
| dnsdoctor.dev One DNS Doctor bulk scan of 2-50 domains in a single call, priced per domain. | Dev Utilities | Live | 20/20 | 556 ms | $0.01 | 32 min ago |
| modelmarket.dev MCP security: catch a rug pull or tool poisoning between two tools/list results of the same MCP server — the … | Dev Utilities | Live | 20/20 | 665 ms | $0.003 | 30 min ago |
| oraclepost.higgsfield.app The chain clock on Base: latest block number and its timestamp, plus the node's current time and the lag betw… | Dev Utilities | Live | 20/20 | 937 ms | $0.001 | 30 min ago |
| relay.straelo.com Check public domain DNS, HTTP, HTTPS, redirects, TLS certificate health and response latency in one request. | Dev Utilities | Live | 20/20 | 377 ms | $0.005 | 28 min ago |
| proxy.0000402.xyz Pay $0.01 USDC to make an outbound HTTP request through the proxy. Supports all standard HTTP methods, custom… | Dev Utilities | Live | 20/20 | 875 ms | $0.01 | 2 min ago |
| chainverdict.xyz Latest Base block: number, timestamp and hash. The cheapest call on the service — useful as a liveness and co… | Dev Utilities | Live | 20/20 | 295 ms | $0.001 | 2 min ago |
| agentbodega.store Check GitHub's official status source for current incidents, component health, and scheduled maintenance befo… | Dev Utilities | Live | 20/20 | 146 ms | $0.005 | 2 min ago |
| 87-106-119-237.sslip.io Analyze operation-level risk inside consolidated MCP tools. Returns evidence-backed ALLOW, DENY, or REQUIRE_A… | Dev Utilities | Live | 20/20 | 127 ms | $0.0045 | 32 min ago |
| agproxy.shveik.dev Fetch one URL from a residential IP and get the raw response as JSON: status, final URL, headers and body (te… | Dev Utilities | Live | 20/20 | 488 ms | $0.016 | 32 min ago |
“Recent Checks OK” = how many of our last test calls (up to 20) worked: the service asked for payment correctly. Shown once there are at least 5 recent checks and at least one worked. “Needs Login” means the service asked for a key or login (HTTP 401 or 403), which is not a failure. These are facts, not a quality ranking. Services can reply or dispute.