Endpoints from usaref.dev
Every service we watch, including those that do not meet our listing criteria. The same metrics for each. Agents can run the same query at /api/v1/services.
| Our checks (unpaid requests) | Payment terms | Our checks (unpaid requests) | Payment terms | Reported by the registry | Listing | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Service | Latest scheduled check | Last 30 checks, oldest to newest | Scheduled checks passed (7-day window) | Scheduled checks passed / run (30-day window) | Response time of latest check (ms) | Check schedule | Freshness | Monitoring since | Lowest price per call (US$) | Access | Tools | Payment protocols offered | Payment networks | Payment-terms changes (90 days) | Registry: unique payers (30 days) | Registry: paid calls (30 days) | What it does (capability tree) | Type | Added from | Purpose tags | Provider | Endpoint we check |
| Usaref - N America referenceusaref.dev | Live, payment required · HTTP 402 | 3 passed, 0 failed, 27 not run, of the last 30 checks | short history3 of 3 run | short history3 of 3 run · 0 missed · 2 days | 1046 | daily | Fresh | 2026-10-16 | $0.002registry's terms | Paymentx402, MPP | — | x402, mpp | eip155:8453 | 1since 2026-10-16 | 2 | 4 | Units, time and dates | Paid API | A public registry | working-dayspublic-holidayscalendar+1 | usaref.dev15 endpoints | POST usaref.dev/v1/answers/working-days |
| Usaref - N America referenceusaref.dev | Live, payment required · HTTP 402 | 3 passed, 0 failed, 27 not run, of the last 30 checks | short history3 of 3 run | short history3 of 3 run · 0 missed · 2 days | 961 | daily | Fresh | 2026-10-17 | $0.02registry's terms | Paymentx402, MPP | — | x402, mpp | eip155:8453 | 1since 2026-10-17 | 2 | 4 | Calendars and scheduling | Paid API | A public registry | settlement-dateworking-dayscalendar+1 | usaref.dev15 endpoints | POST usaref.dev/v1/answers/settlement-date |
| Usaref - N America referenceusaref.dev | Live, payment required · HTTP 402 | 3 passed, 0 failed, 27 not run, of the last 30 checks | short history3 of 3 run | short history3 of 3 run · 0 missed · 2 days | 886 | daily | Fresh | 2026-10-17 | $0.01registry's terms | Paymentx402, MPP | — | x402, mpp | eip155:8453 | 1since 2026-10-17 | 2 | 4 | Accounting | Paid API | A public registry | vattaxgst+1 | usaref.dev15 endpoints | POST usaref.dev/v1/answers/vat |
| Usaref - N America referenceusaref.dev | Live, payment required · HTTP 402 | 3 passed, 0 failed, 27 not run, of the last 30 checks | short history3 of 3 run | short history3 of 3 run · 0 missed · 2 days | 937 | daily | Fresh | 2026-10-17 | $0.02registry's terms | Paymentx402, MPP | — | x402, mpp | eip155:8453 | 1since 2026-10-17 | 1 | 3 | Economic data | Paid API | A public registry | statutory-interestinterest-ratesnorth-america | usaref.dev15 endpoints | POST usaref.dev/v1/answers/statutory-interest |
| Usaref - N America referenceusaref.dev | Live, payment required · HTTP 402 | 3 passed, 0 failed, 27 not run, of the last 30 checks | short history3 of 3 run | short history3 of 3 run · 0 missed · 2 days | 949 | daily | Fresh | 2026-10-17 | $0.02registry's terms | Paymentx402, MPP | — | x402, mpp | eip155:8453 | 1since 2026-10-17 | 1 | 4 | Other (not placed in a branch yet) | Paid API | A public registry | income-taxtaxnorth-america | usaref.dev15 endpoints | POST usaref.dev/v1/answers/income-tax |
| Usaref - N America referenceusaref.dev | Live, payment required · HTTP 402 | 3 passed, 0 failed, 27 not run, of the last 30 checks | short history3 of 3 run | short history3 of 3 run · 0 missed · 2 days | 904 | daily | Fresh | 2026-10-17 | $0.02registry's terms | Paymentx402, MPP | — | x402, mpp | eip155:8453 | 0since 2026-10-17 | 3 | 3 | Reference data | Paid API | A public registry | reference-datasnapshotbulk+1 | usaref.dev15 endpoints | GET usaref.dev/v1/all |
| Usaref - N America referenceusaref.dev | Live, payment required · HTTP 402 | 2 passed, 0 failed, 28 not run, of the last 30 checks | short history2 of 2 run | short history2 of 2 run · 0 missed · 2 days | 1032 | daily | Fresh | 2026-10-17 | $0.05registry's terms | Paymentx402, MPP | — | x402, mpp | eip155:8453 | 1since 2026-10-17 | 2 | 2 | Accounting | Paid API | A public registry | employment-costpayrollcontributions+1 | usaref.dev15 endpoints | POST usaref.dev/v1/answers/employment-cost |
| Usaref - N America referenceusaref.dev | Live, payment required · HTTP 402 | 2 passed, 0 failed, 28 not run, of the last 30 checks | short history2 of 2 run | short history2 of 2 run · 0 missed · 2 days | 241 | daily | Fresh | 2026-10-17 | $0.02registry's terms | Paymentx402, MPP | — | x402, mpp | eip155:8453 | 1since 2026-10-17 | 1 | 2 | Job postings | Paid API | A public registry | wage-checkminimum-wagesalary+1 | usaref.dev15 endpoints | POST usaref.dev/v1/answers/wage-check |
| usaref.devusaref.dev | Live, payment required · HTTP 402 | 2 passed, 0 failed, 28 not run, of the last 30 checks | short history2 of 2 run | short history2 of 2 run · 0 missed · 2 days | 974 | daily | Fresh | 2026-10-17 | $0.1registry's terms | — | — | x402, mpp | eip155:8453 | 1since 2026-10-17 | 1 | 1 | Accounting | Paid API | A public registry | vattaxcross-border+1 | usaref.dev15 endpoints | POST usaref.dev/v1/vat/determine |
| dev.usaref/reference-datausaref.dev | Live, handshake completed · HTTP 405 | 2 passed, 0 failed, 28 not run, of the last 30 checks | short history2 of 2 run | short history2 of 2 run · 0 missed · 1 day | 958 | daily | Fresh | 2026-10-17 | — | None asked | — | — | — | — | — | — | Government and public data | MCP server | A public registry | — | usaref.dev15 endpoints | GET usaref.dev/mcp |
| Usaref - N America referenceusaref.dev | Live, payment required · HTTP 402 | 2 passed, 0 failed, 28 not run, of the last 30 checks | short history2 of 2 run | short history2 of 2 run · 0 missed · 1 day | 949 | daily | Fresh | 2026-10-17 | $0.003registry's terms | Paymentx402, MPP | — | x402, mpp | eip155:8453 | 0since 2026-10-17 | 2 | 9 | Government and public data Economic data | Paid API | A public registry | vatcanadareference-data+2 | usaref.dev15 endpoints | GET usaref.dev/v1/:country/:seriestemplate URL |
| usaref.devusaref.dev | Live, payment required · HTTP 402 | 2 passed, 0 failed, 28 not run, of the last 30 checks | short history2 of 2 run | short history2 of 2 run · 0 missed · 1 day | 959 | daily | Fresh | 2026-10-17 | $0.25registry's terms | — | — | x402, mpp | eip155:8453 | 0since 2026-10-17 | 1 | 2 | Reference data | Paid API | A public registry | vatmexicoreference-data+2 | usaref.dev15 endpoints | GET usaref.dev/v1/certified/:country/:seriestemplate URL |
| usaref.devusaref.dev | Live, payment required · HTTP 402 | 2 passed, 0 failed, 28 not run, of the last 30 checks | short history2 of 2 run | short history2 of 2 run · 0 missed · 1 day | 254 | daily | Fresh | 2026-10-17 | $0.005registry's terms | — | — | x402, mpp | eip155:8453 | 0since 2026-10-17 | 1 | 1 | Reference data | Paid API | A public registry | policy-ratecanadareference-data+2 | usaref.dev15 endpoints | GET usaref.dev/v1/:country/:series/historytemplate URL |
| Usaref - N America referenceusaref.dev | Client error (4xx) · HTTP 404 | 0 passed, 1 failed, 29 not run, of the last 30 checks | short history0 of 1 run | short history0 of 1 run · 0 missed · under 1 day | 998 | daily | Fresh | 2026-10-18 | $0.01registry's terms | — | — | — | eip155:8453 | — | 1 | 1 | Reference data | Paid API | A public registry | reference-datacountry-profilebundle+1 | usaref.dev15 endpoints | GET usaref.dev/v1/brief/:countrytemplate URL |
| Usaref - N America referenceusaref.dev | Client error (4xx) · HTTP 404 | 0 passed, 1 failed, 29 not run, of the last 30 checks | short history0 of 1 run | short history0 of 1 run · 0 missed · under 1 day | 941 | daily | Fresh | 2026-10-18 | $0.002registry's terms | — | — | — | eip155:8453 | — | 1 | 1 | Calendars and scheduling | Paid API | A public registry | public-holidaysholidayscalendar+2 | usaref.dev15 endpoints | GET usaref.dev/v1/holidays/:countrytemplate URL |
23 columns; scroll sideways for more. Each heading links to its definition in the field dictionary. Registry columns are the registry's own figures.