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OpenAPI Specification

openapi: 3.2.0
info:
  version: 1.0.0
  title: target Webhook API
  description: A reference of a webhook target that can be used in conjunction with Blockdaemon Event Streaming.
  contact:
    name: Blockdaemon
    email: info@blockdaemon.com
    url: https://blockdaemon.com
  x-logo:
    url: https://storage.googleapis.com/blockdaemon-app-static-images/marketing/PNG/dark-logo.png
    altText: Blockdaemon logo
servers:
- url: https://svc.blockdaemon.com/streaming/v2
security:
- bearerAuth: []
- apiKeyAuthHeader: []
tags:
- name: Webhook
paths:
  /:
    post:
      tags:
      - Webhook
      summary: Receives Webhook Messages
      description: Endpoint that receives webhook messages after passing verification.
      operationId: webhookReceive
      parameters:
      - in: header
        name: x-bd-webhooks-signature
        schema:
          type: string
        required: true
      requestBody:
        description: the webhook send payload
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/WebhookSendRequest'
      responses:
        '200':
          description: Response to webhook receive
        '400':
          description: Bad request
      x-operation-id-source: normalized
      x-operation-id-original: webhook receive
components:
  schemas:
    WebhookSendRequest:
      oneOf:
      - $ref: '#/components/schemas/WebhookMessageUnifiedBlockRequest'
      - $ref: '#/components/schemas/WebhookMessageUnifiedConfirmedBalanceRequest'
      - $ref: '#/components/schemas/WebhookMessageUnifiedConfirmedTxRequest'
      - $ref: '#/components/schemas/WebhookMessageUnifiedConfirmedTxLogRequest'
      - $ref: '#/components/schemas/WebhookMessageUnifiedReorgRequest'
      - $ref: '#/components/schemas/WebhookMessageUnifiedStakingRewardRequest'
      - $ref: '#/components/schemas/WebhookMessageUnifiedStakingStatusRequest'
      - $ref: '#/components/schemas/WebhookMessageSystemConnectionRequest'
      - $ref: '#/components/schemas/WebhookMessageSystemDroppedMessagesRequest'
      discriminator:
        propertyName: event_type
        mapping:
          unified_block: '#/components/schemas/WebhookMessageUnifiedBlockRequest'
          unified_confirmed_balance: '#/components/schemas/WebhookMessageUnifiedConfirmedBalanceRequest'
          unified_confirmed_tx: '#/components/schemas/WebhookMessageUnifiedConfirmedTxRequest'
          unified_confirmed_tx_log: '#/components/schemas/WebhookMessageUnifiedConfirmedTxLogRequest'
          unified_reorg: '#/components/schemas/WebhookMessageUnifiedReorgRequest'
          unified_staking_reward: '#/components/schemas/WebhookMessageUnifiedStakingRewardRequest'
          unified_staking_status: '#/components/schemas/WebhookMessageUnifiedStakingStatusRequest'
          system.connection: '#/components/schemas/WebhookMessageSystemConnectionRequest'
          system.dropped.messages: '#/components/schemas/WebhookMessageSystemDroppedMessagesRequest'
    WebhookMessageUnifiedBlockRequest:
      type: object
      required:
      - protocol
      - network
      - chain_id
      - event_type
      - data
      properties:
        protocol:
          type: string
          example: bitcoin
        network:
          type: string
          example: mainnet
        chain_id:
          type: string
          example: polkadot:91b171bb158e2d3848fa23a9f1c25182
        event_type:
          $ref: '#/components/schemas/EventType'
        data:
          $ref: '#/components/schemas/WebhookMessageUnifiedBlockData'
    EventType:
      type: string
      enum:
      - unified_block
      - unified_confirmed_tx
      - unified_confirmed_balance
      - unified_confirmed_tx_log
      - unified_reorg
      - unified_staking_reward
      - unified_staking_status
      - system.connection
      - system.dropped.messages
    WebhookMessageUnifiedConfirmedTxRequest:
      type: object
      required:
      - protocol
      - network
      - chain_id
      - event_type
      - data
      properties:
        protocol:
          type: string
          example: bitcoin
        network:
          type: string
          example: mainnet
        chain_id:
          type: string
          example: polkadot:91b171bb158e2d3848fa23a9f1c25182
        event_type:
          $ref: '#/components/schemas/EventType'
        data:
          $ref: '#/components/schemas/WebhookMessageUnifiedConfirmedTxData'
    WebhookMessageUnifiedStakingRewardData:
      type: object
      properties:
        address:
          type: string
        start_balance:
          type: integer
          x-go-type: '*big.Int'
        return:
          type: integer
          x-go-type: '*big.Int'
        start_time:
          type: integer
          x-go-type: uint64
        end_time:
          type: integer
          x-go-type: uint64
        period:
          type: string
        metadata:
          type: object
          x-go-type-skip-optional-pointer: true
          x-go-type: map[string]any
      required:
      - address
      - start_balance
      - return
    WebhookMessageUnifiedStakingStatusData:
      type: object
      properties:
        address:
          type: string
        status:
          type: string
        timestamp:
          type: integer
          x-go-type: uint64
        metadata:
          type: object
          x-go-type-skip-optional-pointer: true
          x-go-type: map[string]any
      required:
      - address
      - status
      - timestamp
    WebhookMessageUnifiedBlockData:
      type: object
      properties:
        block_number:
          type: integer
          example: 12345678
          x-go-type: uint64
        block_hash:
          type: string
          example: 109387459cn81398fd7343195v1983u495yb3491345y
        parent_hash:
          type: string
          example: 3240597834kjl5h234hjk235g329023854jh23g523f1
        block_timestamp:
          type: integer
          example: 1709720523741662000
      required:
      - block_number
      - block_hash
      - block_timestamp
      - parent_hash
    WebhookMessageSystemConnectionRequest:
      type: object
      required:
      - protocol
      - event_type
      - data
      properties:
        protocol:
          type: string
          example: bitcoin
        event_type:
          $ref: '#/components/schemas/EventType'
        data:
          $ref: '#/components/schemas/WebhookMessageSystemConnectionData'
    WebhookMessageSystemDroppedMessagesRequest:
      type: object
      required:
      - protocol
      - event_type
      - data
      properties:
        protocol:
          type: string
          example: bitcoin
        event_type:
          $ref: '#/components/schemas/EventType'
        data:
          $ref: '#/components/schemas/WebhookMessageSystemDroppedMessagesData'
    WebhookMessageUnifiedStakingStatusRequest:
      type: object
      required:
      - protocol
      - network
      - chain_id
      - event_type
      - data
      properties:
        protocol:
          type: string
          example: bitcoin
        network:
          type: string
          example: mainnet
        chain_id:
          type: string
          example: polkadot:91b171bb158e2d3848fa23a9f1c25182
        event_type:
          $ref: '#/components/schemas/EventType'
        data:
          $ref: '#/components/schemas/WebhookMessageUnifiedStakingStatusData'
    WebhookMessageUnifiedConfirmedTxLogData:
      type: object
      required:
      - block_number
      - block_hash
      - timestamp
      - tx_id
      - status
      properties:
        block_number:
          type: integer
          example: 12345678
          x-go-type: uint64
        block_hash:
          type: string
          example: 109387459cn81398fd7343195v1983u495yb3491345y
        tx_id:
          type: string
          example: 77d80eb55bc1e99db7617c5b508452306e7049a54e7ec398a25a293339077763
        tx_hash:
          type: string
        timestamp:
          type: integer
          example: 1709720523741662000
          x-go-type: uint64
        status:
          type: string
          example: success
        transfers:
          type: array
          items:
            $ref: '#/components/schemas/Transfer'
          x-go-type-skip-optional-pointer: true
    TransactionEvmFee:
      type: object
      properties:
        gas_used:
          type: integer
          x-go-type: big.Int
        gas_price:
          type: integer
          x-go-type: big.Int
        gas_limit:
          type: integer
          x-go-type: big.Int
        value:
          type: integer
          x-go-type: big.Int
        max_fee_per_gas:
          type: integer
          x-go-type: big.Int
        max_priority_fee_per_gas:
          type: integer
          x-go-type: big.Int
    WebhookMessageSystemDroppedMessagesData:
      type: object
      properties:
        target_id:
          type: string
        pending_msg_count:
          type: integer
        dropped_msg_count:
          type: integer
        time:
          type: string
    WebhookMessageUnifiedConfirmedBalanceRequest:
      type: object
      required:
      - protocol
      - network
      - chain_id
      - event_type
      - data
      properties:
        protocol:
          type: string
          example: bitcoin
        network:
          type: string
          example: mainnet
        chain_id:
          type: string
          example: polkadot:91b171bb158e2d3848fa23a9f1c25182
        event_type:
          $ref: '#/components/schemas/EventType'
        data:
          $ref: '#/components/schemas/WebhookMessageUnifiedConfirmedBalanceData'
    WebhookMessageUnifiedStakingRewardRequest:
      type: object
      required:
      - protocol
      - network
      - chain_id
      - event_type
      - data
      properties:
        protocol:
          type: string
          example: bitcoin
        network:
          type: string
          example: mainnet
        chain_id:
          type: string
          example: polkadot:91b171bb158e2d3848fa23a9f1c25182
        event_type:
          $ref: '#/components/schemas/EventType'
        data:
          $ref: '#/components/schemas/WebhookMessageUnifiedStakingRewardData'
    WebhookMessageUnifiedConfirmedBalanceData:
      type: object
      properties:
        block_number:
          type: integer
          example: 12345678
          x-go-type: uint64
        block_hash:
          type: string
          example: 109387459cn81398fd7343195v1983u495yb3491345y
        block_timestamp:
          type: integer
          example: 1709720523741662000
          x-go-type: uint64
        address:
          type: string
          example: bc1qm34lsc65zpw79lxes69zkqmk6ee3ewf0j77s3h
        asset:
          type: string
          example: native
        value:
          type: integer
          example: 345709198148936100
          x-go-type: big.Int
      required:
      - block_number
      - block_hash
      - block_timestamp
      - address
      - asset
    WebhookMessageUnifiedConfirmedTxData:
      type: object
      properties:
        block_number:
          type: integer
          example: 12345678
          x-go-type: uint64
        block_hash:
          type: string
          example: 109387459cn81398fd7343195v1983u495yb3491345y
        tx_id:
          type: string
          example: 77d80eb55bc1e99db7617c5b508452306e7049a54e7ec398a25a293339077763
        tx_hash:
          type: string
        timestamp:
          type: integer
          example: 1709720523741662000
          x-go-type: uint64
        status:
          type: string
          example: success
        transfers:
          type: array
          items:
            $ref: '#/components/schemas/Transfer'
          x-go-type-skip-optional-pointer: true
        fee:
          anyOf:
          - $ref: '#/components/schemas/Transfer'
          - $ref: '#/components/schemas/TransactionEvmFee'
      required:
      - block_number
      - block_hash
      - timestamp
      - tx_id
      - status
    Transfer:
      type: object
      properties:
        asset:
          type: string
          example: native
        from:
          type: string
          example: bc1qgzyta95e4tjkks900j3nzydp732ya6r8z4quv3
        to:
          type: string
          example: bc1qzvkgdx0uma7dkcu4uull5sufm2lnmqf4dgyylf
        event_name:
          type: string
          example: vout
        value:
          type: integer
          x-go-type: big.Int
    WebhookMessageUnifiedReorgData:
      type: object
      properties:
        block_number:
          type: integer
          example: 12345678
          x-go-type: uint64
        block_hash:
          type: string
          example: 109387459cn81398fd7343195v1983u495yb3491345y
        block_timestamp:
          type: integer
          example: 1709720523741662000
      required:
      - block_number
      - block_hash
      - block_timestamp
    WebhookMessageUnifiedReorgRequest:
      type: object
      required:
      - protocol
      - network
      - chain_id
      - event_type
      - data
      properties:
        protocol:
          type: string
          example: bitcoin
        network:
          type: string
          example: mainnet
        chain_id:
          type: string
          example: polkadot:91b171bb158e2d3848fa23a9f1c25182
        event_type:
          $ref: '#/components/schemas/EventType'
        data:
          $ref: '#/components/schemas/WebhookMessageUnifiedReorgData'
    WebhookMessageUnifiedConfirmedTxLogRequest:
      type: object
      required:
      - protocol
      - network
      - chain_id
      - event_type
      - data
      properties:
        protocol:
          type: string
          example: bitcoin
        network:
          type: string
          example: mainnet
        chain_id:
          type: string
          example: polkadot:91b171bb158e2d3848fa23a9f1c25182
        event_type:
          $ref: '#/components/schemas/EventType'
        data:
          $ref: '#/components/schemas/WebhookMessageUnifiedConfirmedTxLogData'
    WebhookMessageSystemConnectionData:
      type: object
      properties:
        target_id:
          type: string
        disconnect_time:
          type: integer
        connection_time:
          type: integer
        previous_status:
          type: string
        new_status:
          type: string
  securitySchemes:
    apiKeyAuthHeader:
      type: apiKey
      in: header
      name: X-API-Key
      description: 'Unlock higher TPS - Create your own API key in the [Blockdaemon App](https://app.blockdaemon.com).

        '
      x-default: 2go1YqUcuAr4WZ2-3WgSD3c7qpatZqQuNWhTVBldKZnTSUtw
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: Opaque
      description: '[Legacy Auth] Unlock higher TPS - Create your own API key in the [Blockdaemon App](https://app.blockdaemon.com).

        '
      x-default: 2go1YqUcuAr4WZ2-3WgSD3c7qpatZqQuNWhTVBldKZnTSUtw
x-provenance:
  method: searched
  source: https://docs.blockdaemon.com/reference
  harvested: '2026-10-14'
  tool: harvest-readme-openapi.py
  note: Assembled verbatim from the OpenAPI definition ReadMe embeds in each operation page of the provider's developer portal; paths and components merged by API title, nothing authored.
  assembled_from:
  - https://docs.blockdaemon.com/reference/webhook-receive.md
  - https://docs.blockdaemon.com/reference/webhook-verification-challenge.md
  merge:
    pages: 2
    deduped: 2
    conflicts_kept_first: 0