Dev Utilities Pay-Per-Call AI Services, Page 4
351 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 |
|---|---|---|---|---|---|---|
| kunzum.xyz Optional tip for the Kunzum x402 reference. The page it pays for is free and always will be. Choose any entry… | Dev Utilities | Live | 20/20 | 88 ms | $0.05 | 2 min ago |
| lab.api.williamrobinson.dev | Dev Utilities | Live | 20/20 | 579 ms | $0.15 | 2 min ago |
| list-smith-production.up.railway.app | Dev Utilities | Live | 20/20 | 198 ms | $0.5 | 28 min ago |
| listing-watchdog.krimskrams.xyz | Dev Utilities | Live | 20/20 | 501 ms | $0.1 | 2 min ago |
| machine-commerce-lab.machinecommercelab.workers.dev | Dev Utilities | Live | 20/20 | 505 ms | $0.01 | 24 min ago |
| mailvett.cybermaxtools.com Mailvett: Validate up to 10 email addresses per call: syntax, MX and provider, disposable, role and free-prov… | Dev Utilities | Live | 20/20 | 110 ms | $0.006 | 2 min ago |
| mako.pollinateresearch.com | Dev Utilities | Live | 20/20 | 289 ms | $0.02 | 2 min ago |
| mart402.com | Dev Utilities | Live | 20/20 | 316 ms | $0.005 | 24 min ago |
| mcp-server-quality-corpus.mtree.workers.dev | Dev Utilities | Live | 20/20 | 296 ms | $0.15 | 2 min ago |
| mev.halowerk.com | Dev Utilities | Live | 20/20 | 539 ms | $0.001 | 14 min ago |
| modell.halowerk.com | Dev Utilities | Live | 20/20 | 507 ms | $0.003 | 16 min ago |
| moneytest-x402-api.indierepo.chatgpt.site Deterministic public-safe HTTP 402 surface snapshot with freshness, evidence digests and externally rewarded … | Dev Utilities | Live | 20/20 | 1543 ms | $0.1 | 2 min ago |
| monitor.intel.rallylive.ca | Dev Utilities | Live | 20/20 | 530 ms | $0.01 | 12 min ago |
| monitor.memoryapi.org | Dev Utilities | Live | 20/20 | 311 ms | $0.001 | 22 min ago |
| naif-task-62-83-19-162.sslip.io Resolve DNS records for a public hostname for agent verification and diagnostics. USDC on Base. | Dev Utilities | Live | 20/20 | 1095 ms | $0.01 | 2 min ago |
| neo-collettive.onrender.com | Dev Utilities | Live | 20/20 | 212 ms | $0.01 | 26 min ago |
| netintel-production-440c.up.railway.app | Dev Utilities | Live | 20/20 | 270 ms | $0.002 | 2 min ago |
| netz.halowerk.com | Dev Utilities | Live | 20/20 | 439 ms | $0.004 | 16 min ago |
| nightfall-github-intel-api.planet-teacher.workers.dev Deep deterministic GitHub repository risk, maintenance, release and language intelligence. | Dev Utilities | Live | 20/20 | 489 ms | $0.03 | 2 min ago |
| npm-downloads-range.hergertsynthora.com | Dev Utilities | Live | 20/20 | 541 ms | $0.001 | 20 min ago |
| npm-package-ws-has-241560546-w-production.up.railway.app WebSocket Session Manager API - open session | Dev Utilities | Live | 20/20 | 219 ms | $0.01 | 28 min ago |
| oblique.markets | Dev Utilities | Live | 20/20 | 249 ms | $0.01 | 2 min ago |
| ocr.underscoredone.com | Dev Utilities | Live | 20/20 | 215 ms | $0.01 | 12 min ago |
| onchaincheck.dev | Dev Utilities | Live | 20/20 | 417 ms | $0.001 | 26 min ago |
| one-search.one-engine.workers.dev ONE Engine pay-per-call API | Dev Utilities | Live | 20/20 | 1015 ms | $0.0011 | 2 min ago |
| open-pay.jp | Dev Utilities | Live | 20/20 | 242 ms | $0.001 | 24 min ago |
| opencrowd-services.srijithpoduval.workers.dev | Dev Utilities | Live | 20/20 | 1095 ms | $0.001 | 2 min ago |
| operator-zero-m4h-tester.lukepratermusic.workers.dev Read-only deterministic public-page readiness check for conversion, SEO, trust, structured-data, social-metad… | Dev Utilities | Live | 20/20 | 622 ms | $0.01 | 32 min ago |
| oracle.cyberwarex.com | Dev Utilities | Live | 20/20 | 585 ms | $0.008 | 22 min ago |
| outagedesk-status.catalystdesk.workers.dev Compose a filled status-page / incident update for SaaS on-call agents. Free templates at /v1/templates. | Dev Utilities | Live | 20/20 | 64 ms | $0.05 | 32 min ago |
| packages.melchiorlabs.com Deterministic npm registry evidence for coding agents: dependencies, integrity, provenance, metadata flags, a… | Dev Utilities | Live | 20/20 | 444 ms | $0.003 | 32 min ago |
| pagewatch.zenith-ops.workers.dev Extract structured data from a public static HTML or JSON page (text, attr, list, table, price, events, links… | Dev Utilities | Live | 20/20 | 472 ms | $0.002 | 32 min ago |
| paket.halowerk.com | Dev Utilities | Live | 20/20 | 178 ms | $0.003 | 18 min ago |
| password.openverbs.com | Dev Utilities | Live | 20/20 | 458 ms | $0.002 | 14 min ago |
| pathmint.edge.report | Dev Utilities | Live | 20/20 | 386 ms | $0.01 | 16 min ago |
| penniless-json-repair.sjaman.workers.dev Line-level diff between two texts. x402 v2 0.001/call on Base. | Dev Utilities | Live | 20/20 | 1099 ms | $0.001 | 32 min ago |
| penny-paid-batch-production.up.railway.app Low-cost $0.001 USDC Base x402 paid ping. Test a buyer agent's ability to receive an HTTP 402, authorize a fu… | Dev Utilities | Live | 20/20 | 242 ms | $0.001 | 32 min ago |
| percallapi.com | Dev Utilities | Live | 20/20 | 175 ms | $0.01 | 22 min ago |
| pitchpilot-mcp.pitchpilot-agents.workers.dev MOVED TO SIGTAP: this PitchPilot legacy endpoint is deprecated. Same tool, same price: https://sigtap-mcp.sig… | Dev Utilities | Live | 20/20 | 398 ms | $0.001 | 32 min ago |
| pkgs.scrapemole.workers.dev Resolve PyPI project names: exact and PEP 503–normalized variants (hyphen/underscore/dot), returning matching… | Dev Utilities | Live | 20/20 | 877 ms | $0.003 | 32 min ago |
| playbrightgaming.com Public URL verification for AI agents. Return independent HTTP status, redirect-resolved final URL, content t… | Dev Utilities | Live | 20/20 | 477 ms | $0.001 | 32 min ago |
| polyform.polyform-org.workers.dev | Dev Utilities | Live | 20/20 | 596 ms | $0.003 | 32 min ago |
| port-scanner.underscoredone.com | Dev Utilities | Live | 20/20 | 127 ms | $0.01 | 20 min ago |
| power-pack-x402.fly.dev | Dev Utilities | Live | 20/20 | 281 ms | $0.01 | 26 min ago |
| ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws | Dev Utilities | Live | 20/20 | 178 ms | $0.01 | 20 min ago |
| pricing-state-api.replit.app Machine-readable pricing for SaaS and cloud vendors. Closed catalog. Paid snapshot is 0.01 USDC on Base via x… | Dev Utilities | Live | 20/20 | 664 ms | $0.01 | 32 min ago |
| proofwork-the402-webhook.phase-voice.workers.dev Bounded SHA-256/SHA-512 text hashing with hex and base64 output. | Dev Utilities | Live | 20/20 | 74 ms | $0.001 | 32 min ago |
| prop.halowerk.com | Dev Utilities | Live | 20/20 | 509 ms | $0.002 | 20 min ago |
| proxy.0000402.xyz | Dev Utilities | Live | 20/20 | 858 ms | $0.01 | 24 min ago |
| publish.new Existing ZGAS-001 pack: source-backed brief + 12 prompts + venues.csv. Pay 5 USDC on Base to 0x6cBC7E018A7773… | Dev Utilities | Live | 20/20 | 615 ms | $5 | 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.
List built at 2026-10-27 21:17:58 UTC from our checks (rebuilt about every 5 minutes).