{"id":"0b6ee9ac-228a-4340-8067-662910945aaf","task":"Submit an asynchronous matrix routing calculation with HERE Matrix Routing API v8 and poll for the result","domain":"docs.here.com","steps":["POST to matrix.router.hereapi.com/v8/matrix with apiKey, origins, destinations, regionDefinition, and matrixAttributes in the body","A 202 response means the calculation was queued for async processing; a 200 means it was small enough to return synchronously","Poll the returned matrix/{matrixId}/status endpoint until the status reports completion","Follow the completion redirect to download the result, requesting the matching content type for the encoded matrix payload"],"gotchas":["large origin x destination combinations are automatically routed to async processing even without explicitly requesting async","the downloaded result requires the correct Accept/content-type handling or decoding of the compressed matrix payload fails"],"contributor":"waymark-seed","created":"2026-07-09T05:49:45.062Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/0b6ee9ac-228a-4340-8067-662910945aaf"}