{"uid":"cap_ybUADwW9uH6SFm_a9eXll","slug":"halowerk-methane-leak-satellite-flux-estimator-1266ad7e","name":"Halowerk Methane Leak Satellite Flux Estimator","description":"Sums enhancement_ppm×pixel_area, multiplies by wind speed, plume orientation, and a caller-supplied conversion factor, and reports the resulting proxy and optional kg/h estimate. It does not retrieve satellite data, remove background, solve atmospheric transport, determine source location, or validate the conversion factor.","url":"https://space.halowerk.com/v1/methane-leak-sat","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"pixels":{"type":"array","items":{"type":"object","required":["pixel_id","enhancement_ppm","pixel_area_m2"],"properties":{"pixel_id":{"type":"string","maxLength":128,"minLength":1},"pixel_area_m2":{"type":"number","maximum":1000000000000,"minimum":0.000001},"enhancement_ppm":{"type":"number","maximum":1000000000,"minimum":0}},"additionalProperties":false},"maxItems":100000,"minItems":1},"wind_speed_m_s":{"type":"number","maximum":200,"minimum":0},"conversion_kg_per_ppm_m3":{"type":"number","maximum":1000000000,"minimum":0,"description":"Caller-supplied mass conversion factor; use zero to request only the unitless proxy."},"plume_orientation_factor":{"type":"number","maximum":1,"minimum":0,"description":"Caller-estimated fraction of wind perpendicular to the integration cross-section."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.004","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":"$0.004/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_GqppRNDw_DNAadeW4YX1Z","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.004","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes a methane emission flux proxy and optional kg/h estimate from caller-supplied satellite pixel enhancement data, wind speed, plume orientation, and a mass conversion factor.","exampleAgentPrompt":"I have 500 preprocessed satellite pixels with methane enhancement values and areas — can you compute the emission flux proxy and kg/h estimate using a wind speed of 4.5 m/s, a plume orientation factor of 0.8, and a conversion factor of 6.7e-7 kg/ppm·m³?","exampleUseCases":[{"title":"Oil field methane leak quantification","prompt":"I've extracted 1,200 satellite pixels over a natural gas facility — each has a methane enhancement in ppm and pixel area. Wind speed is 6.2 m/s, plume orientation factor is 0.75, and my conversion factor is 5.5e-7. Can you calculate the total emission flux proxy and the estimated kg/h leak rate?"},{"title":"Pipeline monitoring emission estimate","prompt":"We're monitoring a pipeline corridor and have 300 satellite pixels flagged with methane enhancement values and areas. Use a wind speed of 3.1 m/s, a plume orientation factor of 0.6, and conversion factor 7.2e-7 to get me the methane emission rate in kg/h."},{"title":"Unitless proxy only for anomaly screening","prompt":"I just want the unitless emission proxy — no kg/h estimate needed — for 80 satellite pixels from our methane screening pass. Wind speed is 5.0 m/s, plume orientation factor 0.9, and set the conversion factor to zero."}],"resultDescription":"Returns a unitless methane flux proxy (sum of enhancement_ppm × pixel_area, scaled by wind speed and plume orientation factor) and, if a nonzero conversion factor is supplied, an estimated emission rate in kg/h. Does not include retrieved satellite imagery, background removal, atmospheric transport modeling, source localization, or validation of the conversion factor.","failureModes":["Missing required pixel fields (pixel_id, enhancement_ppm, pixel_area_m2) returns validation error","Pixel array empty or exceeding 100,000 items returns schema error","Wind speed, conversion factor, or plume orientation factor out of allowed range returns validation error","Plume orientation factor outside [0,1] rejected","Conversion factor of zero returns proxy only with no kg/h value","Invalid numeric types for any field cause request rejection"],"whenToPreferThis":"Use this endpoint when you have already preprocessed satellite pixel data (enhancement values and areas extracted, background removed) and need a fast, cheap arithmetic aggregation into a methane flux proxy or kg/h estimate. It is not suitable when you need to fetch raw satellite imagery, perform atmospheric retrieval, remove background noise, or determine source location — those steps must be completed upstream. Prefer this over building the integration manually when working in an agentic pipeline that chains satellite preprocessing with quantification.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T09:15:35.390Z","isFirstParty":false}