# TruthBear Climate Policy Chain — One Policy > TruthBear Climate Policy Chain — One Policy is a paid API for AI agents from api.truthbear.co, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-14). Returns a 3-leg sequential signal chain for a single climate policy entity: leading repeal/legal pressure, current lifecycle stage, and realized dependency cascade if the policy dies. ## Facts - Endpoint: GET https://api.truthbear.co/gauge/policy-region - Price: $0.25/call - Payment: x402 - Status: unknown - Last checked: 2026-09-14 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/truthbear-climate-policy-chain-one-policy-a8b8354f - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_t2JjHV5McRNgTU2MxocuK 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 truthbear-climate-policy-chain-one-policy-a8b8354f ``` Example prompt: Pull the full 3-leg climate policy chain for the Kyoto Protocol — I want to see leading repeal proposals and judicial challenges, where it sits in its lifecycle right now, and what the dependency cascade looks like if it gets repealed. ## When to prefer this Choose this endpoint when you need a structured, multi-leg signal chain for a specific named climate policy — especially when you care about both early warning signals (repeal/legal pressure) and downstream cascade consequences. It is distinct from general news search or policy databases because it chains leading indicators to lifecycle status to dependency impact in a single call, with a confidence score. Prefer it over generic web search when you need machine-readable, source-cited, descriptive policy health data ready for agent workflows. ## Known failure modes - 422 no_charge returned when no data exists for the requested entity — call is not billed - Invalid or unrecognized entity ID returns an error; use GET /gauge/catalog?signal_id= to discover valid entity IDs - Partial chain confidence if only some legs have data (e.g. confidence = 1/3 or 2/3) - Network or upstream data source unavailability from Federal Register or UNFCCC may delay results ## 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 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. $0.25 per call. ## Output A JSON object representing a 3-leg sequential signal chain: Leg 1 covers leading repeal proposals and judicial challenges; Leg 2 shows the policy's current lifecycle stage (enacted through repealed) and days alive; Leg 3 reveals the realized dependency cascade triggered when the policy dies (requires confirmation gate). A confidence score reflects how many legs are lit in order. Returns 422 no_charge if no data is available for the requested entity. Sources: Federal Register, UNFCCC. Descriptive only — no forecasts or advice. ## Request schema (JSON Schema) ```json { "$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= -> 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", "example": { "legs": { "cascade": { "band": "stable", "source_ref": "https://climate.ec.europa.eu/eu-action/eu-emissions-trading-system-eu-ets_en", "record_hash": "sha256:2e2872aee53815d423a9be1224309d822c30e7fb5eed99b037feb501985a8178" }, "distress": { "band": "none", "source_ref": "https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:52021PC0551", "record_hash": "sha256:87a1985d5cc336ac39d2947c1a44e50e535e0808bf31e2848bed5de49e808d7d" }, "lifecycle": { "band": "operating", "source_ref": "https://climate.ec.europa.eu/eu-action/eu-emissions-trading-system-eu-ets_en", "record_hash": "sha256:2803954f008904c532d708effbf26a64673a9516e1dfe7a54c82472a88ae3cd7" } }, "name": "EU - Emissions Trading System (EU ETS)", "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": "eu-ets", "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": 106, "freshness_basis": "cadence=default; fresh<=24h; recent<=192h; dead_source>1440h; age_basis=request-time(now minus observed_at)" } } } ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/truthbear-climate-policy-chain-one-policy-a8b8354f/health.json - [Zero catalog index](https://www.zero.xyz/llms.txt) - [Other services from api.truthbear.co](https://www.zero.xyz/host/api.truthbear.co/llms.txt)