{"uid":"cap_IIFFmBIlDKMohANanZR_i","slug":"halowerk-baltic-land-estonia-soil-coarse-fragment-volume-0-5-cm-481f685a","name":"HALOWERK Baltic Land – Estonia Soil Coarse-Fragment Volume (0–5 cm)","description":"Mean SoilGrids coarse-fragment volume for the 0-5 cm layer. The coordinate is validated against the Natural Earth boundary for Estonia; results outside it are rejected before payment.","url":"https://baltikum.halowerk.com/v1/ee-soil-coarse-fragments","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"latitude":{"type":"number","maximum":72.5,"minimum":34,"description":"WGS84 latitude inside the published European coverage."},"longitude":{"type":"number","maximum":40.5,"minimum":-31.5,"description":"WGS84 longitude inside the published European coverage."}}},"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_X6buTnYqGUMtMmjV0Bd-9","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":"Returns the mean SoilGrids coarse-fragment volume percentage for the 0–5 cm soil layer at a given WGS84 coordinate within Estonia.","exampleAgentPrompt":"What is the mean coarse-fragment volume in the top 5 cm of soil at latitude 58.5850, longitude 25.0136 in Estonia?","exampleUseCases":[{"title":"Agricultural site suitability assessment","prompt":"I'm evaluating a farmland parcel near Tartu at 58.37°N, 26.72°E — can you tell me the coarse-fragment volume in the top 5 cm of soil there so I can judge how rocky it is for tillage?"},{"title":"Construction ground survey","prompt":"We're scoping a building site in Estonia at coordinates 59.44 latitude, 24.75 longitude — fetch the SoilGrids coarse-fragment percentage for the 0–5 cm layer so we can assess surface soil stoniness."},{"title":"Environmental monitoring baseline","prompt":"I need the mean coarse-fragment volume for the 0–5 cm soil layer at 57.82°N, 27.01°E in Estonia as part of a land-cover baseline dataset I'm compiling."}],"resultDescription":"A numeric value representing the mean volumetric coarse-fragment (gravel/stones) content as a percentage in the 0–5 cm topsoil layer at the requested coordinate, derived from SoilGrids. Requests outside Estonia's boundary are rejected before any charge is applied.","failureModes":["Coordinate outside Estonia boundary — request rejected with validation error and no charge","Latitude or longitude out of European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation failure","Invalid or missing coordinate fields — 400-level error","Service unavailable or upstream SoilGrids data issue — 5xx error"],"whenToPreferThis":"Choose this endpoint when you need point-level coarse-fragment (gravel/rock) volume data specifically for Estonian locations using SoilGrids-derived values. It is preferable over general-purpose soil APIs when you require pre-validated Estonia-boundary enforcement and a low per-call cost via x402 micropayment. Use it alongside sibling endpoints (clay fraction, sand fraction, bulk density) for comprehensive soil profile analysis.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:49:42.299Z","isFirstParty":false}