passlisted in Coinbase#9 by calls of 60 on this host
0.005 USDC
per call, as the listing declares it on eip155:
- Validation state
- pass
- Uptime, 7 / 30 / 90 days
- 100% / 100% / 100%
- Calls, trailing 30 days
- 20
- Unique payers, trailing 30 days
- 2
- Last called
- 2026-09-07 08:52 UTC
- First observed by TOLLderived
- 2026-09-10
- Pricederived
- 0.005 USDC
- Networks
- 2
How big is this endpoint among the ones like it?
No trace is drawn of this endpoint’s own volume. Its counters have changed 1 time across 29 observations, and 3 changes are the fewest this site will draw a trace through, because two points and a guess are not a series. Every observation is in the JSON.
api.truthbear.co lists 60 endpoints; gauge calibrated is tied 9th by calls with 2 others.
gauge calibrated takes the query parameters entity and signal_id.
A response from gauge calibrated, as declared, includes dim, grade, scope, entity, nature, signal_id and 2 others.
gauge calibrated drew 20 calls from 2 unique payers in the trailing 30 days, about 10 calls per payer.
gauge calibrated was last called 9 days before the snapshot.
A call to gauge calibrated costs 0.005 USDC on Base, as declared.
Of the calls counted across api.truthbear.co, gauge calibrated takes 2%.
gauge calibrated accepts payment on Base and Solana, 2 options in all, to 2 different wallets.
api.truthbear.co serves gauge calibrated, a GET endpoint that TOLL places in inference, listed in the Coinbase registry.
gauge calibrated answered the sweep of 2026-09-15 with a valid 402, as at every sweep since 2026-09-11.
Closest in price to gauge calibrated within inference: marine depth at api.geoprimitives.dev and google ai mode ai mode at x402.openwebninja.com.
gauge calibrated is priced above 17% of comparable listings in inference.
Within inference, 97% of endpoints with counters have fewer calls.
The wallet paid by gauge calibrated is the payee of 120 endpoints across 2 hosts.
Seller tags: gauge, calibrated, no-data-no-charge and record-hash.
The price of gauge calibrated is declared by 148 other listings in inference too.
the payment options, as of 2026-09-15 21:20 UTC · method · pinnable
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.005 USDC | exact | 0x2d16a2…c4c6c3 |
| Coinbase | solana: | USDC | 0.005 USDC | exact | 8qEn3Y3G…rQAY3n |
the checks, as of 2026-09-15 03:48 UTC · method · pinnableendpoint answered HTTP 402
No named check failed.
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-09-15 03:48 UTC | pass | 0 | daily-2026-09-15 |
| 2026-09-14 03:47 UTC | pass | 0 | daily-2026-09-14 |
| 2026-09-13 03:47 UTC | pass | 0 | daily-2026-09-13 |
| 2026-09-12 03:47 UTC | pass | 0 | daily-2026-09-12 |
| 2026-09-11 09:25 UTC | pass | 0 | daily-2026-09-11 |
| 2026-09-11 09:24 UTC | pass | 0 | new-2026-09-11T09-23-46-473Z |
Presence in a registry, not liveness of the service (method). Newest first.
- listed in Coinbase
From the registry record, not validated by TOLL.the declared schema, as of 2026-09-07 08:52 UTC · method · live
The input and output block
{
"input": {
"type": "http",
"method": "GET",
"example": {
"entity": "07010000",
"format": "thin",
"signal_id": "hydrology.river-level"
},
"queryParams": {
"entity": "required - monitored object id, paired with signal_id; free list at GET /gauge/catalog?signal_id=<signal_id> -> signals[",
"signal_id": "required - signal id (genus.species); free list at GET /gauge/catalog (paged; ?all=1 for every line)"
},
"exampleRequest": "/gauge/calibrated?signal_id=hydrology.river-level&entity=07010000&format=thin"
},
"output": {
"type": "json",
"example": {
"dim": "calibrated",
"grade": "screening-level, not decision-grade",
"scope": {
"full": "https://api.truthbear.co/scope/v1",
"verifiability": "via-endpoint",
"monitoring_not_forecast": true,
"intelligence_not_command": true
},
"entity": "07010000",
"nature": "This API supplies data organisation and trend description only. It is not a recommendation to act; the decision is yours. Purely descriptive - no judgement, no prediction. Official source plus record_hash; verify with the free /gauge/verify.",
"signal_id": "hydrology.river-level",
"calibrated": {
"band": "below_action",
"unit": "ft",
"scale": "flood_stage",
"metric": "gauge_height_ft",
"index_basis": "normalized_index: piecewise linear (action=0/minor=1/moderate=2/major=3); below the first band = (value - first threshold) / first threshold, clamped to [-1,0); above the top band it is unbounded. pct_to_action = value / first alert threshold (bounded, 1 = at the first alert)",
"current_value": 6.48,
"pct_to_action": 0.231,
"normalized_index": -0.769
},
"provenance": {
"freshness": "fresh",
"age_hours_now": 5.5,
"freshness_basis": "cadence=daily; fresh<=24h; recent<=192h; dead_source>1440h; age_basis=request-time(now minus observed_at)"
},
"source_ref": "https://waterdata.usgs.gov/monitoring-location/07010000/",
"entity_name": "Mississippi River at St. Louis, MO",
"observed_at": "2026-08-26T09:30:00.000Z",
"record_hash": "sha256:a3986d8689a1d9f6e8b4b92c2318d5af64291cdedbdbd3d706e0049e16fcb42e",
"record_hash_verifiable": {
"mode": "via-endpoint",
"note": "This response is a projected delivery (some core fields are omitted to control size). Cross-check record_hash with the free /gauge/verify, or buy /gauge to get the complete core for offline recomputation."
}
}
}
}Cite this page
The pinned URL below renders this page from the snapshot of 2026-09-15 21:20 UTC and does not change; the live page does, every six hours. Data reuse is under CC BY 4.0 (terms).
Plain text
TOLL, "gauge calibrated on api.truthbear.co", snapshot of 2026-09-15 21:20 UTC. https://tollindex.com/e/api-truthbear-co-gauge-calibrated-003ae7/at/2026-09-15T21-20Z. Accessed [access date].
BibTeX
@misc{toll-e-api-truthbear-co-gauge-calibrated-003ae7-2026-09-15T21-20Z,
author = {TOLL},
title = {gauge calibrated on api.truthbear.co},
howpublished = {\url{https://tollindex.com/e/api-truthbear-co-gauge-calibrated-003ae7/at/2026-09-15T21-20Z}},
year = {2026},
month = {9},
note = {Pinned view of the snapshot of 2026-09-15 21:20 UTC. Accessed [access date].}
}None yet. Anything submitted through the form below is published here with its outcome.