{"slug":"api-integrityphase-com-verify-webhook-integrity-065831","title":"Share a verifiable webhook check without exposing the source HMAC secret","host":"api.integrityphase.com","method":"POST","resource":"https://api.integrityphase.com/verify/webhook-integrity","category":"other","description":"Share a verifiable webhook check without exposing the source HMAC secret. IntegrityPhase verifies the signature, format and freshness, issuing a signed record. The recipient verifies the signature and its link to the original request. Example: a B2B order-acceptance webhook. The record does not prov","price_listed":22.391402,"price_asked":null,"state":"effects","state_label":"Not tested: has real-world effects","checks_7d":0,"answered_7d":0,"latency_ms_median":null,"reported_calls_30d":0,"reported_payers_30d":0,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"base_operation_id":"base-operation-example-0001","buyer_id":"buyer_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa","confidence":0.95,"delegation_fingerprint":"hmac-sha256:dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd","event_id":"evt_example_catalog_0001","event_value_currency":"EUR","event_value_eur":150,"method_id":"webhook_integrity.v1","payload":{"delivery_id":"example_delivery_0001","event_type":"example.received"},"schema_version":"integrityphase.verify_webhook_integrity.request.v3","signature":"sha256=0000000000000000000000000000000000000000000000000000000000000000","source":{"source_id":"source_example_catalog_0001","type":"webhook"},"source_operation_fingerprint":"sha256:bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb","timestamp":"2026-01-01T00:00:00.000Z","use_case":"saas_webhook_integrity","wallet_address_hash":"sha256:cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","additionalProperties":false,"properties":{"input":{"additionalProperties":false,"properties":{"body":{"$schema":"https://json-schema.org/draft/2020-12/schema","additionalProperties":false,"properties":{"base_operation_id":{"pattern":"^[A-Za-z0-9][A-Za-z0-9._:-]{2,127}$","type":"string"},"buyer_id":{"pattern":"^buyer_[a-f0-9]{40}$","type":"string"},"confidence":{"maximum":1,"minimum":0.75,"type":"number"},"delegation_fingerprint":{"pattern":"^hmac-sha256:[a-f0-9]{64}$","type":"string"},"event_id":{"pattern":"^[A-Za-z0-9][A-Za-z0-9._:-]{2,127}$","type":"string"},"event_value_currency":{"const":"EUR"},"event_value_eur":{"maximum":200,"minimum":100,"multipleOf":0.01,"type":"number"},"method_id":{"const":"webhook_integrity.v1"},"payload":{"type":"object"},"schema_version":{"const":"integrityphase.verify_webhook_integrity.request.v3"},"signature":{"pattern":"^sha256=[a-f0-9]{64}$","type":"string"},"source":{"additionalProperties":false,"properties":{"source_id":{"pattern":"^[A-Za-z0-9][A-Za-z0-9._:-]{2,127}$","type":"string"},"type":{"enum":["webhook","api"],"type":"string"}},"required":["source_id","type"],"type":"object"},"source_operation_fingerprint":{"pattern":"^sha256:[a-f0-9]{64}$","type":"string"},"timestamp":{"format":"date-time","pattern":"^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}\\.[0-9]{3}Z$","type":"string"},"use_case":{"maxLength":100,"minLength":3,"pattern":"^[A-Za-z0-9][A-Za-z0-9._:-]{2,99}$","type":"string"},"wallet_address_hash":{"pattern":"^sha256:[a-f0-9]{64}$","type":"string"}},"required":["schema_version","buyer_id","wallet_address_hash","delegation_fingerprint","base_operation_id","event_id","method_id","event_value_eur","event_value_currency","source_operation_fingerprint","source","payload","timestamp","signature"],"type":"object","x-integrityphase-payload-maximum-nesting-depth":64,"x-integrityphase-request-body-max-bytes":1000000},"bodyType":{"const":"json","type":"string"},"method":{"const":"POST","type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"additionalProperties":false,"properties":{"example":{"type":"object"},"type":{"const":"json","type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[],"description_full":"Share a verifiable webhook check without exposing the source HMAC secret. IntegrityPhase verifies the signature, format and freshness, issuing a signed record. The recipient verifies the signature and its link to the original request. Example: a B2B order-acceptance webhook. The record does not prove fulfilment. Outside critical processes; EUR 100–200 operations; PL/CZ/FR legal entities; IntegrityPhase HMAC sources. Buy: https://api.integrityphase.com/mcp. Bazaar paid proxy unsupported.","last_updated":"2026-10-10T13:18:21.408Z","schemes":["exact"]}