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OpenAPI Specification

openapi: 3.2.0
info:
  title: Uniblock Direct Direct Pass-Through Transactions API
  description: The Uniblock Direct API gives developers pass-through access to provider-specific endpoints exactly as offered by upstream blockchain data providers. Requests follow the pattern of specifying the provider and optional prefix in the URL path, while still benefiting from Uniblock's routing, retry, and failover infrastructure. Results are returned exactly as they would be if the first-party provider endpoint was called directly. This is intended for use cases where a specific method is not yet abstracted into the Unified API.
  version: '1.0'
  contact:
    name: Uniblock Support
    url: https://docs.uniblock.dev
  termsOfService: https://uniblock.dev/terms
servers:
- url: https://api.uniblock.dev/direct/v1
  description: Uniblock Direct API Production Server
security:
- apiKeyHeader: []
tags:
- name: Transactions
  description: Endpoints for looking up transaction data by address or transaction hash, including detailed transaction information.
paths:
  /transactions:
    get:
      operationId: getTransactions
      summary: Get Transactions
      description: Retrieves a list of transactions associated with a specific wallet address, including both incoming and outgoing transactions across the specified blockchain network.
      tags:
      - Transactions
      parameters:
      - $ref: '#/components/parameters/chainParam'
      - $ref: '#/components/parameters/walletAddressParam'
      - $ref: '#/components/parameters/limitParam'
      - $ref: '#/components/parameters/cursorParam'
      responses:
        '200':
          description: Successful response with transactions
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TransactionsResponse'
        '400':
          description: Bad request - invalid parameters
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '401':
          description: Unauthorized - missing or invalid API key
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
  /transactions/{transactionHash}:
    get:
      operationId: getTransactionByHash
      summary: Get Transaction by Hash
      description: Retrieves detailed information about a specific transaction by its transaction hash, including status, gas used, block number, and input data.
      tags:
      - Transactions
      parameters:
      - $ref: '#/components/parameters/chainParam'
      - name: transactionHash
        in: path
        required: true
        description: The hash of the transaction to retrieve.
        schema:
          type: string
          pattern: ^0x[a-fA-F0-9]{64}$
      responses:
        '200':
          description: Successful response with transaction details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TransactionDetailResponse'
        '400':
          description: Bad request - invalid parameters
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '401':
          description: Unauthorized - missing or invalid API key
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '404':
          description: Transaction not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
components:
  schemas:
    ErrorResponse:
      type: object
      description: Standard error response returned when a request fails.
      properties:
        success:
          type: boolean
          description: Indicates whether the request was successful.
          example: false
        error:
          type: object
          description: Error details object.
          properties:
            code:
              type: string
              description: Machine-readable error code.
            message:
              type: string
              description: Human-readable error message describing what went wrong.
    Transaction:
      type: object
      description: A blockchain transaction with summary information.
      properties:
        transactionHash:
          type: string
          description: The unique hash identifier of the transaction.
        from:
          type: string
          description: The sender address.
        to:
          type: string
          description: The recipient address.
        value:
          type: string
          description: The value transferred in the native token's smallest unit.
        blockNumber:
          type: integer
          description: The block number containing the transaction.
        blockTimestamp:
          type: string
          format: date-time
          description: The timestamp of the block containing the transaction.
        status:
          type: string
          description: The execution status of the transaction.
          enum:
          - success
          - failed
        gasUsed:
          type: string
          description: The amount of gas consumed by the transaction.
    TransactionDetailResponse:
      type: object
      description: Response containing detailed information about a single transaction.
      properties:
        success:
          type: boolean
          description: Indicates whether the request was successful.
        data:
          type: object
          description: Detailed transaction data.
          properties:
            transactionHash:
              type: string
              description: The unique hash identifier of the transaction.
            from:
              type: string
              description: The sender address.
            to:
              type: string
              description: The recipient address.
            value:
              type: string
              description: The value transferred in the native token's smallest unit.
            blockNumber:
              type: integer
              description: The block number containing the transaction.
            blockTimestamp:
              type: string
              format: date-time
              description: The timestamp of the block containing the transaction.
            status:
              type: string
              description: The execution status of the transaction.
            gasUsed:
              type: string
              description: The amount of gas consumed by the transaction.
            gasPrice:
              type: string
              description: The gas price at which the transaction was executed.
            nonce:
              type: integer
              description: The sender's transaction nonce.
            input:
              type: string
              description: The input data of the transaction.
            logs:
              type: array
              description: Event logs emitted during the transaction.
              items:
                type: object
                properties:
                  logIndex:
                    type: integer
                    description: The position of the log in the block.
                  address:
                    type: string
                    description: The contract address that emitted the event.
                  topics:
                    type: array
                    description: Indexed event topics.
                    items:
                      type: string
                  data:
                    type: string
                    description: Non-indexed event data.
    TransactionsResponse:
      type: object
      description: Response containing a paginated list of transactions.
      properties:
        success:
          type: boolean
          description: Indicates whether the request was successful.
        data:
          type: array
          description: List of transactions.
          items:
            $ref: '#/components/schemas/Transaction'
        cursor:
          type: string
          description: Pagination cursor for the next page of results.
  parameters:
    limitParam:
      name: limit
      in: query
      description: Maximum number of results to return per page.
      schema:
        type: integer
        minimum: 1
        maximum: 100
        default: 25
    chainParam:
      name: chain
      in: query
      required: true
      description: The blockchain network identifier (e.g., ethereum, polygon, solana, bsc, arbitrum, optimism, avalanche, base).
      schema:
        type: string
        examples:
        - ethereum
        - polygon
        - solana
    cursorParam:
      name: cursor
      in: query
      description: Pagination cursor for retrieving the next page of results.
      schema:
        type: string
    walletAddressParam:
      name: address
      in: query
      required: true
      description: The wallet address to query data for.
      schema:
        type: string
  securitySchemes:
    apiKeyHeader:
      type: apiKey
      in: header
      name: x-api-key
      description: Uniblock project API key passed as a header. If no provider-specific authentication is passed in the request, Uniblock will use the credentials stored in the project associated with this API key.
externalDocs:
  description: Uniblock Direct API Documentation
  url: https://docs.uniblock.dev/docs/direct-api-overview