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TruthBear Gauge History Series
x402
TruthBear Gauge History Series is a paid API for AI agents from api.truthbear.co, paid per call via x402, $0.09/call, status unknown (last checked 2026-09-13).
Returns the full retained time-series of snapshots for a specific signal and entity, including snapshot date, observation time, data age, current value, band, and record hash.
Price / call$0.09
Success—
StatusUnknown
How this service works
[TIME SERIES EXPORT] Full retained series for one signal and entity (?days=, ?format=json or csv): every snapshot up to days (default 400, cap 1000) with snapshot_date, observed_at, data_age_hours, current, band and record_hash. For research, actuarial and base-rate work. Free 7-snapshot shape preview at /gauge/history-preview. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed. $0.09 per call.
Output
Returns a JSON or CSV array of time-ordered snapshots for the requested signal and entity. Each record includes snapshot_date, observed_at, data_age_hours, current (the signal value), band (risk tier), and record_hash (integrity identifier). The lookback window defaults to 400 days and is capped at 1000 days. If no data is available, returns a 422 no_charge error without billing.
Example use cases
Actuarial base-rate research on river levels
“Get me the complete snapshot history for the hydrology.river-level signal on entity 07010000 for the last 400 days in CSV format — I need every snapshot_date, current value, and band for actuarial modeling.”
Stablecoin depeg pressure historical audit
“Retrieve the full retained time series for the stablecoin depeg pressure signal on entity terrausd-ust over the past 1000 days as JSON so I can study how the band and current readings evolved over time.”
Supply chain chokepoint long-run trend analysis
“Can you export the entire history series for the shipping chokepoint signal on the Malacca entity for the last 600 days? I want to see every observed_at timestamp, data_age_hours, and record_hash to cross-reference with incident reports.”
Technical details
Endpoint
GEThttps://api.truthbear.co/gauge/history-seriesWhen to prefer
Use this endpoint when you need the complete retained historical record of a signal for research, actuarial, or base-rate work — not just the current reading or a preview. Prefer this over /gauge/history-preview when you need more than 7 snapshots. Use when you need CSV export for downstream statistical tooling. Do not use if you need a forecast, advice, or calibrated normalized index (use gauge/calibrated for normalization).
Side effects
- 422 no_charge returned when no data exists for the specified signal_id and entity combination — call is not billed
- Invalid signal_id or entity returns an error — check /gauge/coverage for valid identifiers
- Days parameter below 1 or above 1000 may be rejected or clamped
- Unsupported format value (not json or csv) may return an error
- Network timeout on very large day windows approaching the 1000-day cap
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object | |
| output | object |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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