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TruthBear Carbon Region Integrity Chain
x402
TruthBear Carbon Region Integrity Chain is a paid API for AI agents from api.truthbear.co, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-13).
Returns a 3-leg carbon project integrity chain covering rating drift/downgrades, registry lifecycle status, and realized price integrity for a named carbon project or mechanism.
Price / call$0.25
Success—
StatusUnknown
How this service works
[3-LEG] Carbon integrity chain, one carbon project (?entity=kariba-redd): leading rating drift, downgrades and standard-body review -> current registry lifecycle from listed to suspended or de-listed -> realized price integrity (confirmation gate). A chain, not one reading: confidence = how many legs are lit, in order. Sources: Verra, Gold Standard, registry feeds. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed. $0.25 per call.
Output
A JSON object containing three sequential integrity legs: (1) leading rating drift, downgrades, and standard-body review signals; (2) current registry lifecycle status (listed, suspended, or de-listed); (3) realized price integrity confirmation. A confidence score reflects how many legs are fully lit. Returns HTTP 422 (no_charge) if no data is available for the requested entity.
Example use cases
Carbon credit due diligence before purchase
“Before I buy any Kariba REDD credits, can you check the TruthBear integrity chain for kariba-redd — specifically whether there have been any rating downgrades, if it's still actively listed on the registry, and if price integrity checks out?”
Portfolio greenwash audit for ESG fund
“I need to audit our carbon offset holdings for greenwash risk — run the 3-leg integrity chain on rimba-raya and tell me how many legs are lit, whether it's been reviewed or flagged by Verra or Gold Standard, and what the registry lifecycle status is.”
Methodology-level integrity check for CDM
“What's the current integrity status for the CDM mechanism overall? Check the carbon-region chain for cdm-mechanism — I need to know about leading standard-body reviews, any suspensions, and whether price integrity is confirmed.”
Technical details
Endpoint
GEThttps://api.truthbear.co/gauge/carbon-regionWhen to prefer
Choose this endpoint when you need a structured, multi-signal integrity assessment of a specific voluntary carbon project or methodology — especially when you want to cross-check rating drift, registry status, and price integrity in a single chained call. Prefer it over raw registry lookups when you need a confidence-scored summary across all three integrity dimensions and want Verra/Gold Standard sources aggregated automatically.
Side effects
- 422 no_charge returned when no data exists for the requested entity — not billed
- Invalid or unrecognized entity ID results in 422 or empty response
- Missing required 'entity' query parameter causes request rejection
- Partial data availability may result in fewer than 3 legs lit, lowering confidence score
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"legs": {
"lifecycle": {
"band": "ended",
"source_ref": "https://registry.verra.org/app/projectDetail/VCS/902",
"record_hash": "sha256:3b19805563d036479d8500bf19f2fdcff728f2c085a269d96673246cf89e718c"
},
"rating_drift": {
"band": "withdrawn",
"source_ref": "https://registry.verra.org/app/projectDetail/VCS/902",
"record_hash": "sha256:42b5328d7e2d4cff264e71f7450243369e5f49ea1da1e69852b6b44597afc5a9"
},
"price_integrity": {
"band": "unsellable",
"source_ref": "https://www.theguardian.com/environment/2023/oct/03/revealed-top-carbon-offset-firm-worthless-credits-south-pole-kariba-zimbabwe",
"record_hash": "sha256:e659ab63d01cde8738c4eb486314bba31ef98582d3b56a551edcbbec363193be"
}
},
"name": "Kariba REDD+ (VCS 902)",
"grade": "screening-level, not decision-grade",
"scope": {
"full": "https://api.truthbear.co/scope/v1",
"verifiability": "unknown",
"monitoring_not_forecast": true,
"intelligence_not_command": true
},
"entity": "kariba-redd",
"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.",
"provenance": {
"freshness": "recent",
"age_hours_now": 143,
"freshness_basis": "cadence=default; fresh<=24h; recent<=192h; dead_source>1440h; age_basis=request-time(now minus observed_at)"
}
}
}Tags
x402
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