{"uid":"cap_zt0WBAjJWYY9e9Io9Ohlb","slug":"gridhub-capacity-data-by-zone-1f12d741","name":"GridHub Capacity Data by Zone","description":"Live wholesale electricity prices, demand, and generation mix across 25 grids in the US, UK, Australia, and Europe. Pay-per-call API access from $0.001.","url":"https://api.grid-hub.app/v1/capacity/%7Bzone%7D","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","pathParams"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"pathParams":{"type":"object","required":["zone"],"properties":{"zone":{"enum":["US-CAISO","US-ERCOT","US-PJM","US-MISO","US-NYISO","US-ISONE","US-SPP","GB","AU-NSW","AU-QLD","AU-VIC","AU-SA","AU-TAS","DE-LU","FR","ES","IT-NO","NL","BE","PL","SE-3","NO-2","DK-1","AT","CH"],"type":"string","description":"Zone id from /v1/zones"}}},"queryParams":{"type":"object","properties":{"end":{"type":"string","description":"Window end, Unix seconds"},"limit":{"type":"string","description":"Max rows (up to 5000)"},"start":{"type":"string","description":"Window start, Unix seconds"},"sample":{"enum":["true"],"type":"string","description":"Free truncated sample, no payment or credentials"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"data":[{"ts":1787961600,"unit":"GBP/MWh","value":88.76},{"ts":1787963400,"unit":"GBP/MWh","value":91.2}],"zone":"GB","count":2,"metric":"capacity","license":"NESO-Open-Licence","attribution":"Supported by National Energy SO Open Data"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_zTRgb74MKmJMhvfKa3IfV","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a time-series of electricity capacity values for a specified grid zone, covering up to 5000 data points per call.","exampleAgentPrompt":"Pull the capacity time series for the GB electricity zone from GridHub for the last 24 hours — I want timestamps and values in GBP/MWh.","exampleUseCases":[{"title":"Monitor grid capacity for energy trading","prompt":"Get me the GridHub capacity data for US-ERCOT for the past 6 hours so I can see how available capacity has been trending before market close."},{"title":"Compare capacity across European zones","prompt":"Fetch the latest capacity readings from GridHub for France, Germany, and Spain — I want to compare how they stack up right now."},{"title":"Alert when Australian grid capacity drops","prompt":"Check the current capacity value for the AU-NSW zone on GridHub and let me know if it's below 500 MW — I'm watching for low-capacity conditions."}],"resultDescription":"A JSON object containing an array of timestamped capacity data points for the requested zone, each with a Unix timestamp, numeric value, and unit (e.g. GBP/MWh or MW). Also includes zone identifier, total count, metric name (capacity), license, and data attribution.","failureModes":["Invalid or unsupported zone enum value returns an error — must use one of the 25 supported zone IDs","Missing required zone path parameter returns a 400 or 404 error","Payment not provided or insufficient (x402 protocol) returns a 402 Payment Required — use 'sample=true' for a free truncated response","Start/end timestamps in wrong format or out of range may return empty data or an error","Requesting more than 5000 rows via limit param may be rejected or silently capped"],"whenToPreferThis":"Use this endpoint when you need a time-series of capacity data for a specific electricity grid zone, particularly when you want to specify a time window or retrieve a bulk set of historical data points. Prefer this over snapshot endpoints when trend analysis or time-series storage is the goal. If you only need the current latest value, consider the /latest or /snapshot endpoints instead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:43:55.609Z","isFirstParty":false}