openapi: 3.0.3
info:
  description: Low-latency indexed account, token, and public-key lookup APIs for wallets and explorers. Embedded portal clients may forward an optional `apiKey` query parameter, but the public FastNEAR API does not require it.
  title: FastNEAR accounts EXPERIMENTAL Receipt To Tx API
  version: 3.0.3
servers:
- description: Mainnet
  url: https://api.fastnear.com
- description: Testnet
  url: https://test.api.fastnear.com
tags:
- name: EXPERIMENTAL Receipt To Tx
paths:
  /EXPERIMENTAL_receipt_to_tx:
    post:
      description: Resolves a receipt ID back to the originating transaction hash and sender account
      operationId: EXPERIMENTAL_receipt_to_tx
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/JsonRpcRequest_for_EXPERIMENTAL_receipt_to_tx'
        required: true
      responses:
        '200':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/JsonRpcResponse_for_RpcReceiptToTxResponse_and_RpcReceiptToTxError'
      tags:
      - EXPERIMENTAL Receipt To Tx
components:
  schemas:
    CryptoHash:
      type: string
    RpcReceiptToTxError:
      oneOf:
      - properties:
          info:
            properties:
              receipt_id:
                $ref: '#/components/schemas/CryptoHash'
            required:
            - receipt_id
            type: object
          name:
            enum:
            - UNKNOWN_RECEIPT
            type: string
        required:
        - name
        - info
        type: object
      - properties:
          info:
            properties:
              limit:
                format: uint32
                minimum: 0
                type: integer
              receipt_id:
                $ref: '#/components/schemas/CryptoHash'
            required:
            - receipt_id
            - limit
            type: object
          name:
            enum:
            - DEPTH_EXCEEDED
            type: string
        required:
        - name
        - info
        type: object
      - properties:
          info:
            properties:
              error_message:
                type: string
            required:
            - error_message
            type: object
          name:
            enum:
            - UNSUPPORTED
            type: string
        required:
        - name
        - info
        type: object
      - properties:
          info:
            properties:
              error_message:
                type: string
            required:
            - error_message
            type: object
          name:
            enum:
            - INTERNAL_ERROR
            type: string
        required:
        - name
        - info
        type: object
      - properties:
          name:
            enum:
            - OUTCOMES_NOT_STORED
            type: string
        required:
        - name
        type: object
      - properties:
          info:
            properties:
              maximum:
                format: uint64
                minimum: 0
                type: integer
              requested:
                format: uint64
                minimum: 0
                type: integer
            required:
            - requested
            - maximum
            type: object
          name:
            enum:
            - WINDOW_TOO_LARGE
            type: string
        required:
        - name
        - info
        type: object
      - properties:
          info:
            properties:
              error_message:
                type: string
            required:
            - error_message
            type: object
          name:
            enum:
            - MALFORMED_HINT
            type: string
        required:
        - name
        - info
        type: object
      - properties:
          info:
            properties:
              limit:
                format: uint64
                minimum: 0
                type: integer
              scanned:
                format: uint64
                minimum: 0
                type: integer
            required:
            - scanned
            - limit
            type: object
          name:
            enum:
            - BUDGET_EXCEEDED
            type: string
        required:
        - name
        - info
        type: object
    JsonRpcRequest_for_EXPERIMENTAL_receipt_to_tx:
      properties:
        id:
          type: string
        jsonrpc:
          type: string
        method:
          enum:
          - EXPERIMENTAL_receipt_to_tx
          type: string
        params:
          $ref: '#/components/schemas/RpcReceiptToTxRequest'
      required:
      - jsonrpc
      - id
      - params
      - method
      title: JsonRpcRequest_for_EXPERIMENTAL_receipt_to_tx
      type: object
    JsonRpcResponse_for_RpcReceiptToTxResponse_and_RpcReceiptToTxError:
      oneOf:
      - properties:
          result:
            $ref: '#/components/schemas/RpcReceiptToTxResponse'
        required:
        - result
        type: object
      - properties:
          error:
            $ref: '#/components/schemas/ErrorWrapper_for_RpcReceiptToTxError'
        required:
        - error
        type: object
      properties:
        id:
          type: string
        jsonrpc:
          type: string
      required:
      - jsonrpc
      - id
      title: JsonRpcResponse_for_RpcReceiptToTxResponse_and_RpcReceiptToTxError
      type: object
    ErrorWrapper_for_RpcReceiptToTxError:
      oneOf:
      - properties:
          cause:
            $ref: '#/components/schemas/RpcRequestValidationErrorKind'
          name:
            enum:
            - REQUEST_VALIDATION_ERROR
            type: string
        required:
        - name
        - cause
        type: object
      - properties:
          cause:
            $ref: '#/components/schemas/RpcReceiptToTxError'
          name:
            enum:
            - HANDLER_ERROR
            type: string
        required:
        - name
        - cause
        type: object
      - properties:
          cause:
            $ref: '#/components/schemas/InternalError'
          name:
            enum:
            - INTERNAL_ERROR
            type: string
        required:
        - name
        - cause
        type: object
    RpcReceiptToTxRequest:
      properties:
        block_height:
          description: "Block height near where receipt was created. Enables hint fallback\nscan on column miss. Anchor refreshes to each scan-resolved parent's\nexact execution height; later ancestors bounded via causality\n(emit before execute), so subsequent column-miss scans go\n`Ancestor`. Bump `receipt_to_tx_max_hop_distance` if cold archival\ngaps exceed default 20.\n\nCold-storage cost: per-row latency orders of magnitude over hot. To\nbound request cost:\n  - Supply `block_height` within parent's `±window` (default 5).\n  - Supply `shard_id`. Omit → all-shards enumeration until walker\n    crosses `FromReceipt` hop, multiplying cold-read cost.\n  - Don't widen `window` beyond indexer's accuracy; budget shared\n    across full ancestry walk.\n\nReceipt-id-only queries against periods with `save_receipt_to_tx`\ndisabled stay unsupported: column never written, no self-locating."
          format: uint64
          minimum: 0
          nullable: true
          type: integer
        receipt_id:
          $ref: '#/components/schemas/CryptoHash'
        shard_id:
          anyOf:
          - $ref: '#/components/schemas/ShardId'
          - enum:
            - null
            nullable: true
          description: 'Shard hint. Narrows scan to this shard at hint height. Omit to

            enumerate all tracked shards (higher cost). After walker crosses a

            receipt-origin hop, shard derived from parent''s predecessor account

            and hint no longer applies. Best-effort across resharding: layout

            shifts can miss producer, walk returns `UnknownReceipt`.'
        window:
          description: 'Pre-first-scan width: `±window` heights around hint. Caps at

            `receipt_to_tx_max_hint_window` (default 20). Ignored after first

            scan-resolved hop — walker switches to `Ancestor` mode at

            `receipt_to_tx_max_hop_distance` width.'
          format: uint64
          minimum: 0
          nullable: true
          type: integer
      required:
      - receipt_id
      title: RpcReceiptToTxRequest
      type: object
    RpcReceiptToTxResponse:
      properties:
        sender_account_id:
          $ref: '#/components/schemas/AccountId'
        transaction_hash:
          $ref: '#/components/schemas/CryptoHash'
      required:
      - transaction_hash
      - sender_account_id
      type: object
    InternalError:
      oneOf:
      - properties:
          info:
            properties:
              error_message:
                type: string
            required:
            - error_message
            type: object
          name:
            enum:
            - INTERNAL_ERROR
            type: string
        required:
        - name
        - info
        type: object
    RpcRequestValidationErrorKind:
      oneOf:
      - properties:
          info:
            properties:
              method_name:
                type: string
            required:
            - method_name
            type: object
          name:
            enum:
            - METHOD_NOT_FOUND
            type: string
        required:
        - name
        - info
        type: object
      - properties:
          info:
            properties:
              error_message:
                type: string
            required:
            - error_message
            type: object
          name:
            enum:
            - PARSE_ERROR
            type: string
        required:
        - name
        - info
        type: object
    AccountId:
      $schema: https://json-schema.org/draft/2020-12/schema
      description: 'NEAR Account Identifier.


        This is a unique, syntactically valid, human-readable account identifier on the NEAR network.


        [See the crate-level docs for information about validation.](index.html#account-id-rules)


        Also see [Error kind precedence](AccountId#error-kind-precedence).


        ## Examples


        ```

        use near_account_id::AccountId;


        let alice: AccountId = "alice.near".parse().unwrap();


        assert!("ƒelicia.near".parse::<AccountId>().is_err()); // (ƒ is not f)

        ```'
      title: AccountId
      type: string
    ShardId:
      description: 'The shard identifier. It may be an arbitrary number - it does not need to be

        a number in the range 0..NUM_SHARDS. The shard ids do not need to be

        sequential or contiguous.


        The shard id is wrapped in a new type to prevent the old pattern of using

        indices in range 0..NUM_SHARDS and casting to ShardId. Once the transition

        if fully complete it potentially may be simplified to a regular type alias.'
      format: uint64
      minimum: 0
      type: integer