# Climate Policy Lifecycle & Carbon Exposure Gauge

> Climate Policy Lifecycle & Carbon Exposure Gauge is a paid API for AI agents from aeml-x402.zeabur.app, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-13).

Returns a structured three-leg gauge for a climate policy: its full lifecycle (birth to death/survival days), official endangerment events (repeal proposals, legal challenges), and dependency cascades (policy death → carbon project exposure).

## Facts

- Endpoint: GET https://aeml-x402.zeabur.app/gauge/policy-region
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/climate-policy-lifecycle-carbon-exposure-gauge-30c8582c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fdOLwse_7ti1s8iRokq9o

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability climate-policy-lifecycle-carbon-exposure-gauge-30c8582c
```

Example prompt: Pull the full climate policy triangle for the Paris Agreement — lifecycle from birth to now, any active repeal or legal challenges, and which carbon projects are exposed if it collapses, with verifiable sourcing.

## When to prefer this

Choose this endpoint when you need a verifiable, three-leg structured picture of a specific climate policy — lifecycle, endangerment events, and carbon project dependency cascade — in a single call. Prefer it over general legislative databases when you need cross-validated narrative, Ed25519-signed provenance, and cadence-aware freshness signals for AI agent pipelines. It is purpose-built for climate policy intelligence rather than generic document retrieval.

## Known failure modes

- Unknown entity key returns 404 or empty legs — use exact slugs like 'kyoto-protocol' or 'paris-agreement'
- Stale data for infrequently updated policies may be flagged as 'stale' in provenance.freshness
- Payment failure or expired x402 receipt returns 402 with no data
- Policy with no official endangerment events returns empty or null for that leg
- No carbon dependency data available returns null cascade leg with honest disclosure
- Signature verification failure on _citation indicates data integrity issue

## How this service works

[3-LEG] Climate policy chain, one policy (?entity=kyoto-protocol): leading repeal proposals and judicial challenge -> current lifecycle from enacted to repealed, days alive -> realized dependency cascade when a policy dies (confirmation gate). A sequential chain, not one reading - confidence = how many legs are lit, in order. Sources: Federal Register, UNFCCC. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed.

## Output

A structured JSON object with: (1) `legs` containing per-leg readings including signal_id, current value, observed_at, data_age_hours, and record_hash; (2) a cross_line_narrative describing the three-leg picture in plain language; (3) provenance with data lineage traceable to official sources; (4) a _citation block with an Ed25519-signed, offline-verifiable claim; (5) decision_points showing swappable tags for re-runs; (6) scope and grade honesty disclosures; and (7) a nature disclaimer that the gauge is observational only.

## Request schema (JSON Schema)

```json
{
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "queryParams"
   ],
   "properties": {
    "type": {
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "entity"
     ],
     "properties": {
      "entity": {
       "type": "string",
       "examples": [
        "eu-ets",
        "us-inflation-reduction-act",
        "kyoto-protocol",
        "au-carbon-pricing",
        "us-clean-power-plan",
        "uk-green-homes-grant"
       ],
       "description": "required - monitored object id, paired with signal_id; free list at GET /gauge/catalog?signal_id=<signal_id> -> signals[0].entities[]",
       "x-accepted-values": {
        "all": "https://api.truthbear.co/schemas/gauge-policy-region.input.json",
        "shown": 6,
        "total": 23
       }
      }
     },
     "additionalProperties": false
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "const": "json"
    },
    "example": {}
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/climate-policy-lifecycle-carbon-exposure-gauge-30c8582c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from aeml-x402.zeabur.app](https://www.zero.xyz/host/aeml-x402.zeabur.app/llms.txt)