{"uid":"cap_DtfJDHF8SbLzjCnwUhO1_","slug":"greeneris-data-gb-carbon-7307823b","name":"greeneris-data-gb-carbon","description":"Carbon intensity of Great Britain's electricity grid from the official NESO Carbon Intensity API (CC BY 4.0), in half-hour periods with a low/moderate/high index. No params -> current national half-hour; ?horizon=fw24h|fw48h adds the forecast; ?region=1..17 (13=London) switches to a DNO region and includes the generation mix per fuel. 30-min upstream cadence, 30-min cache.","url":"https://data.greeneris.io/v1/gb/carbon","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"region":{"type":"string","description":"DNO regionid 1-17 (optional; 13=London)"},"horizon":{"enum":["fw24h","fw48h"],"type":"string","description":"Forecast window from now (optional)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"unit":"gCO2/kWh","count":1,"scope":"regional","region":{"dno":"UKPN London","name":"London","regionid":13},"source":"Carbon Intensity API, National Energy System Operator (NESO), CC BY 4.0","periods":[{"to":"2026-07-14T06:00Z","from":"2026-07-14T05:30Z","index":"low","forecast":81,"generation_mix":{"gas":20.5,"wind":34.2,"solar":25,"nuclear":8.1}}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_UKniwvNX42KfXAd3xPSYs","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns real-time and forecast UK grid carbon intensity (gCO2/kWh) and electricity generation mix by DNO region","exampleAgentPrompt":"What's the current carbon intensity and generation mix for the London electricity grid (region 13), and can you also show me the 24-hour forecast so I know when it'll be cleanest?","exampleUseCases":null,"resultDescription":"A JSON object containing the carbon intensity value in gCO2/kWh, a qualitative index (e.g. 'low'), the regional DNO name and region ID, forecast periods with from/to timestamps, and a breakdown of the electricity generation mix by source (gas, wind, solar, nuclear, etc.). Data is sourced from the UK National Energy System Operator (NESO) under CC BY 4.0.","failureModes":["Invalid region ID (outside 1-17) returns an error or empty result","Invalid horizon enum value returns a validation error","Network or upstream NESO API outage returns a 5xx error","No forecast data available for the requested window returns empty periods array","Payment not completed returns HTTP 402 with a machine-readable quote"],"whenToPreferThis":"Use this endpoint when you need real-time or short-term forecast UK grid carbon intensity data by DNO region, particularly for scheduling energy-intensive tasks during low-carbon periods, sustainability reporting, or building green energy dashboards. Prefer this over generic weather APIs when the specific need is electricity generation mix and CO2 intensity rather than meteorological data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:51:48.552Z","isFirstParty":false}