Blockfrost
Blockfrost Cardano » Transactions API

The Cardano » Transactions API from Blockfrost — 14 operation(s) for cardano » transactions.
Documentation GitHub OpenAPI
OpenAPI Specification

openapi: 3.0.3
info:
  version: 0.1.87
  title: Blockfrost.io ~ API Documentation Cardano » Accounts Cardano » Transactions API
  x-logo:
    url: https://staging.blockfrost.io/images/logo.svg
    altText: Blockfrost
  contact:
    name: Blockfrost Team
    url: https://blockfrost.io
    email: contact@blockfrost.io
  license:
    name: MIT
    url: https://opensource.org/licenses/MIT
  termsOfService: https://blockfrost.io/terms
  description: "Blockfrost is an API as a service that allows users to interact with the Cardano blockchain, Midnight blockchain, and parts of their ecosystems.\n\n## Tokens\n\nAfter signing up on https://blockfrost.io, a `project_id` token is automatically generated for each project.\nHTTP header of your request MUST include this `project_id` in order to authenticate against Blockfrost servers.\n\n## Available networks\n\nAt the moment, you can use the following networks. Please, note that each network has its own `project_id`.\n\n<table>\n  <tbody>\n    <tr>\n      <td>\n          <b>Network</b>\n      </td>\n      <td>\n          <b>Endpoint</b>\n      </td>\n    </tr>\n    <tr>\n        <td>Cardano mainnet</td>\n        <td>\n            <code>https://cardano-mainnet.blockfrost.io/api/v0</code>\n        </td>\n    </tr>\n    <tr>\n        <td>Cardano preprod</td>\n        <td>\n            <code>https://cardano-preprod.blockfrost.io/api/v0</code>\n        </td>\n    </tr>\n    <tr>\n        <td>Cardano preview</td>\n        <td>\n            <code>https://cardano-preview.blockfrost.io/api/v0</code>\n        </td>\n    </tr>\n    <tr>\n        <td>Midnight mainnet</td>\n        <td>\n            <code>https://midnight-mainnet.blockfrost.io/api/v0</code>\n        </td>\n    </tr>\n    <tr>\n        <td>InterPlanetary File System</td>\n        <td>\n            <code>https://ipfs.blockfrost.io/api/v0</code>\n        </td>\n    </tr>\n  </tbody>\n</table>\n\n## Concepts\n\n* All endpoints return either a JSON object or an array.\n* Data is returned in *ascending* (oldest first, newest last) order, if not stated otherwise.\n  * You might use the `?order=desc` query parameter to reverse this order.\n* By default, we return 100 results at a time. You have to use `?page=2` to list through the results.\n* All time and timestamp related fields (except `server_time`) are in seconds of UNIX time.\n* All amounts are returned in Lovelaces, where 1 ADA = 1 000 000 Lovelaces.\n* Addresses, accounts and pool IDs are in Bech32 format.\n* All values are case sensitive.\n* All hex encoded values are lower case.\n* Examples are not based on real data. Any resemblance to actual events is purely coincidental.\n* We allow to upload files up to 100MB of size to IPFS. This might increase in the future.\n* Only pinned IPFS files are counted towards the IPFS quota.\n* Non-pinned IPFS files are subject to regular garbage collection and will be removed unless pinned.\n* We allow maximum of 100 queued pins per IPFS user.\n\n## Errors\n\n### HTTP Status codes\n\nThe following are HTTP status code your application might receive when reaching Blockfrost endpoints and\nit should handle all of these cases.\n\n* HTTP `400` return code is used when the request is not valid.\n* HTTP `402` return code is used when the projects exceed their daily request limit.\n* HTTP `403` return code is used when the request is not authenticated.\n* HTTP `404` return code is used when the resource doesn't exist.\n* HTTP `418` return code is used when the user has been auto-banned for flooding too much after previously receiving error code `402` or `429`.\n* HTTP `425` return code is used in Cardano networks, when the user has submitted a transaction when the mempool is already full, not accepting new txs straight away.\n* HTTP `425` return code is used in IPFS network, when the user has submitted a pin when the pin queue is already full, not accepting new pins straight away.\n* HTTP `429` return code is used when the user has sent too many requests in a given amount of time and therefore has been rate-limited.\n* HTTP `500` return code is used when our endpoints are having a problem.\n\n### Error codes\n\nAn internal error code number is used for better indication of the error in question. It is passed using the following payload.\n\n```json\n{\n  \"status_code\": 403,\n  \"error\": \"Forbidden\",\n  \"message\": \"Invalid project token.\"\n}\n```\n## Limits\n\nThere are two types of limits we are enforcing:\n\nThe first depends on your plan and is the number of request we allow per day. We defined the day from midnight to midnight of UTC time.\n\nThe second is rate limiting. We limit an end user, distinguished by IP address, to 10 requests per second. On top of that, we allow\neach user to send burst of 500 requests, which cools off at rate of 10 requests per second. In essence, a user is allowed to make another\nwhole burst after (currently) 500/10 = 50 seconds. E.g. if a user attempts to make a call 3 seconds after whole burst, 30 requests will be processed.\nWe believe this should be sufficient for most of the use cases. If it is not and you have a specific use case, please get in touch with us, and\nwe will make sure to take it into account as much as we can.\n\n## SDKs\n\nWe support a number of SDKs that will help you in developing your application on top of Blockfrost.\n\n<table>\n  <tbody>\n    <tr>\n        <td><b>Programming language</b></td>\n        <td><b>SDK</b></td>\n    </tr>\n    <tr>\n        <td>JavaScript</td>\n        <td>\n            <a href=\"https://github.com/blockfrost/blockfrost-js\">blockfrost-js</a>\n        </td>\n    </tr>\n    <tr>\n        <td>Haskell</td>\n        <td>\n            <a href=\"https://github.com/blockfrost/blockfrost-haskell\">blockfrost-haskell</a>\n        </td>\n    </tr>\n    <tr>\n        <td>Python</td>\n        <td>\n            <a href=\"https://github.com/blockfrost/blockfrost-python\">blockfrost-python</a>\n        </td>\n    </tr>\n    <tr>\n        <td>Rust</td>\n        <td>\n            <a href=\"https://github.com/blockfrost/blockfrost-rust\">blockfrost-rust</a>\n        </td>\n    </tr>\n    <tr>\n        <td>Golang</td>\n        <td>\n            <a href=\"https://github.com/blockfrost/blockfrost-go\">blockfrost-go</a>\n        </td>\n    </tr>\n    <tr>\n        <td>Ruby</td>\n        <td>\n            <a href=\"https://github.com/blockfrost/blockfrost-ruby\">blockfrost-ruby</a>\n        </td>\n    </tr>\n    <tr>\n        <td>Java</td>\n        <td>\n            <a href=\"https://github.com/blockfrost/blockfrost-java\">blockfrost-java</a>\n        </td>\n    </tr>\n    <tr>\n        <td>Scala</td>\n        <td>\n            <a href=\"https://github.com/blockfrost/blockfrost-scala\">blockfrost-scala</a>\n        </td>\n    </tr>\n    <tr>\n        <td>Swift</td>\n        <td>\n            <a href=\"https://github.com/blockfrost/blockfrost-swift\">blockfrost-swift</a>\n        </td>\n    </tr>\n    <tr>\n        <td>Kotlin</td>\n        <td>\n            <a href=\"https://github.com/blockfrost/blockfrost-kotlin\">blockfrost-kotlin</a>\n        </td>\n    </tr>\n    <tr>\n        <td>Elixir</td>\n        <td>\n            <a href=\"https://github.com/blockfrost/blockfrost-elixir\">blockfrost-elixir</a>\n        </td>\n    </tr>\n    <tr>\n        <td>.NET</td>\n        <td>\n            <a href=\"https://github.com/blockfrost/blockfrost-dotnet\">blockfrost-dotnet</a>\n        </td>\n    </tr>\n    <tr>\n        <td>Arduino</td>\n        <td>\n            <a href=\"https://github.com/blockfrost/blockfrost-arduino\">blockfrost-arduino</a>\n        </td>\n    </tr>\n    <tr>\n        <td>PHP</td>\n        <td>\n            <a href=\"https://github.com/blockfrost/blockfrost-php\">blockfrost-php</a>\n        </td>\n    </tr>\n    <tr>\n        <td>Crystal</td>\n        <td>\n            <a href=\"https://github.com/blockfrost/blockfrost-crystal\">blockfrost-crystal</a>\n        </td>\n    </tr>\n  </tbody>\n</table>\n\n\n## Midnight API\n\n\nThe Midnight Indexer API exposes a GraphQL API that enables clients to query and subscribe to blockchain data — blocks, transactions, contracts, and wallet-related events — indexed from the Midnight blockchain.\n\nAvailable networks: `mainnet`, `preprod`, `preview`\n\n| Service | URL | Protocol |\n|---------|-----|----------|\n| **Indexer HTTP API** | `https://midnight-{network}.blockfrost.io/api/v0` | HTTP POST (GraphQL) |\n| **Indexer Subscriptions API** | `wss://midnight-{network}.blockfrost.io/api/v0/ws` | WebSocket |\n| **Node RPC** | `https://rpc.midnight-{network}.blockfrost.io` | JSON-RPC |\n\n\nFor the full documentation — queries, mutations, subscriptions, authentication options, and examples — see the Midnight GraphQL API Reference:\n\n[![Explore the Midnight API →](https://img.shields.io/badge/Explore_the_Midnight_API_→-0033AD?style=for-the-badge)](./midnight/)\n"
servers:
- url: https://cardano-mainnet.blockfrost.io/api/v0
  description: Cardano Mainnet network
- url: https://cardano-preprod.blockfrost.io/api/v0
  description: Cardano Preprod network
- url: https://cardano-preview.blockfrost.io/api/v0
  description: Cardano Preview network
- url: https://localhost:3000
  description: local
security:
- project_id: []
tags:
- name: Cardano » Transactions
paths:
  /txs/{hash}:
    get:
      tags:
      - Cardano » Transactions
      summary: Blockfrost Specific Transaction
      description: Return content of the requested transaction.
      parameters:
      - in: path
        name: hash
        required: true
        schema:
          type: string
          format: 64-character case-sensitive hexadecimal string.
        description: Hash of the requested transaction
        example: 6e5f825c42c1c6d6b77f2a14092f3b78c8f1b66db6f4cf8caec1555b6f967b3b
      responses:
        '200':
          description: Return the contents of the transaction.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/tx_content'
        '400':
          $ref: '#/components/responses/400'
        '403':
          $ref: '#/components/responses/403'
        '404':
          $ref: '#/components/responses/404'
        '418':
          $ref: '#/components/responses/418'
        '429':
          $ref: '#/components/responses/429'
        '500':
          $ref: '#/components/responses/500'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /txs/{hash}/utxos:
    get:
      tags:
      - Cardano » Transactions
      summary: Blockfrost Transaction UTXOs
      description: Return the inputs and UTXOs of the specific transaction.
      parameters:
      - in: path
        name: hash
        required: true
        schema:
          type: string
          format: 64-character case-sensitive hexadecimal string
        description: Hash of the requested transaction
        example: 6e5f825c82c1c6d6b77f2a14092f3b78c8f1b66db6f4cf8caec1555b6f967b3b
      responses:
        '200':
          description: Return the contents of the transaction.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/tx_content_utxo'
        '400':
          $ref: '#/components/responses/400'
        '403':
          $ref: '#/components/responses/403'
        '404':
          $ref: '#/components/responses/404'
        '418':
          $ref: '#/components/responses/418'
        '429':
          $ref: '#/components/responses/429'
        '500':
          $ref: '#/components/responses/500'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /txs/{hash}/stakes:
    get:
      tags:
      - Cardano » Transactions
      summary: Blockfrost Transaction Stake Addresses Certificates
      description: 'Obtain information about (de)registration of stake addresses within a transaction.

        '
      parameters:
      - in: path
        name: hash
        required: true
        schema:
          type: string
          format: 64-character case-sensitive hexadecimal string.
        description: Hash of the requested transaction.
        example: 6e5f825c82c1c6d6b77f2a14092f3b78c8f1b66db6f4cf8caec1555b6f967b3b
      responses:
        '200':
          description: 'Obtain information about (de)registration of stake addresses within a transaction.

            '
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/tx_content_stake_addr'
        '400':
          $ref: '#/components/responses/400'
        '403':
          $ref: '#/components/responses/403'
        '404':
          $ref: '#/components/responses/404'
        '418':
          $ref: '#/components/responses/418'
        '429':
          $ref: '#/components/responses/429'
        '500':
          $ref: '#/components/responses/500'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /txs/{hash}/delegations:
    get:
      tags:
      - Cardano » Transactions
      summary: Blockfrost Transaction Delegation Certificates
      description: 'Obtain information about delegation certificates of a specific transaction.

        '
      parameters:
      - in: path
        name: hash
        required: true
        schema:
          type: string
          format: 64-character case-sensitive hexadecimal string
        description: Hash of the requested transaction.
        example: 6e5f825c82c1c6d6b77f2a14092f3b78c8f1b66db6f4cf8caec1555b6f967b3b
      responses:
        '200':
          description: Obtain information about delegation certificates of a specific transaction
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/tx_content_delegations'
        '400':
          $ref: '#/components/responses/400'
        '403':
          $ref: '#/components/responses/403'
        '404':
          $ref: '#/components/responses/404'
        '418':
          $ref: '#/components/responses/418'
        '429':
          $ref: '#/components/responses/429'
        '500':
          $ref: '#/components/responses/500'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /txs/{hash}/withdrawals:
    get:
      tags:
      - Cardano » Transactions
      summary: Blockfrost Transaction Withdrawal
      description: Obtain information about withdrawals of a specific transaction.
      parameters:
      - in: path
        name: hash
        required: true
        schema:
          type: string
          format: 64-character case-sensitive hexadecimal string
        description: Hash of the requested transaction.
        example: 6e5f825c82c1c6d6b77f2a14092f3b78c8f1b66db6f4cf8caec1555b6f967b3b
      responses:
        '200':
          description: Obtain information about withdrawals of a specific transaction.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/tx_content_withdrawals'
        '400':
          $ref: '#/components/responses/400'
        '403':
          $ref: '#/components/responses/403'
        '404':
          $ref: '#/components/responses/404'
        '418':
          $ref: '#/components/responses/418'
        '429':
          $ref: '#/components/responses/429'
        '500':
          $ref: '#/components/responses/500'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /txs/{hash}/mirs:
    get:
      tags:
      - Cardano » Transactions
      summary: Blockfrost Transaction MIRs
      description: Obtain information about Move Instantaneous Rewards (MIRs) of a specific transaction.
      parameters:
      - in: path
        name: hash
        required: true
        schema:
          type: string
          format: 64-character case-sensitive hexadecimal string
        description: Hash of the requested transaction.
        example: 6e5f825c82c1c6d6b77f2a14092f3b78c8f1b66db6f4cf8caec1555b6f967b3b
      responses:
        '200':
          description: Obtain information about Move Instantaneous Rewards (MIRs) of a specific transaction.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/tx_content_mirs'
        '400':
          $ref: '#/components/responses/400'
        '403':
          $ref: '#/components/responses/403'
        '404':
          $ref: '#/components/responses/404'
        '418':
          $ref: '#/components/responses/418'
        '429':
          $ref: '#/components/responses/429'
        '500':
          $ref: '#/components/responses/500'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /txs/{hash}/pool_updates:
    get:
      tags:
      - Cardano » Transactions
      summary: Blockfrost Transaction Stake Pool Registration and Update Certificates
      description: 'Obtain information about stake pool registration and update certificates of a specific transaction.

        '
      parameters:
      - in: path
        name: hash
        required: true
        schema:
          type: string
          format: 64-character case-sensitive hexadecimal string
        description: Hash of the requested transaction
        example: 6e5f825c82c1c6d6b77f2a14092f3b78c8f1b66db6f4cf8caec1555b6f967b3b
      responses:
        '200':
          description: Obtain information about stake pool certificates of a specific transaction
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/tx_content_pool_certs'
        '400':
          $ref: '#/components/responses/400'
        '403':
          $ref: '#/components/responses/403'
        '404':
          $ref: '#/components/responses/404'
        '418':
          $ref: '#/components/responses/418'
        '429':
          $ref: '#/components/responses/429'
        '500':
          $ref: '#/components/responses/500'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /txs/{hash}/pool_retires:
    get:
      tags:
      - Cardano » Transactions
      summary: Blockfrost Transaction Stake Pool Retirement Certificates
      description: 'Obtain information about stake pool retirements within a specific transaction.

        '
      parameters:
      - in: path
        name: hash
        required: true
        schema:
          type: string
          format: 64-character case-sensitive hexadecimal string.
        description: Hash of the requested transaction
        example: 6e5f825c82c1c6d6b77f2a14092f3b78c8f1b66db6f4cf8caec1555b6f967b3b
      responses:
        '200':
          description: 'Obtain information about stake pool retirements within a specific transaction.

            '
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/tx_content_pool_retires'
        '400':
          $ref: '#/components/responses/400'
        '403':
          $ref: '#/components/responses/403'
        '404':
          $ref: '#/components/responses/404'
        '418':
          $ref: '#/components/responses/418'
        '429':
          $ref: '#/components/responses/429'
        '500':
          $ref: '#/components/responses/500'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /txs/{hash}/metadata:
    get:
      tags:
      - Cardano » Transactions
      summary: Blockfrost Transaction Metadata
      description: Obtain the transaction metadata.
      parameters:
      - in: path
        name: hash
        required: true
        schema:
          type: string
          format: 64-character case-sensitive hexadecimal string.
        description: Hash of the requested transaction
        example: 6e5f825c82c1c6d6b77f2a14092f3b78c8f1b66db6f4cf8caec1555b6f967b3b
      responses:
        '200':
          description: Obtain metadata information associated with a specific transaction.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/tx_content_metadata'
        '400':
          $ref: '#/components/responses/400'
        '403':
          $ref: '#/components/responses/403'
        '404':
          $ref: '#/components/responses/404'
        '418':
          $ref: '#/components/responses/418'
        '429':
          $ref: '#/components/responses/429'
        '500':
          $ref: '#/components/responses/500'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /txs/{hash}/metadata/cbor:
    get:
      tags:
      - Cardano » Transactions
      summary: Blockfrost Transaction Metadata in CBOR
      description: Obtain the transaction metadata in CBOR.
      parameters:
      - in: path
        name: hash
        required: true
        schema:
          type: string
          format: 64-character case-sensitive hexadecimal string.
        description: Hash of the requested transaction
        example: 6e5f825c82c1c6d6b77f2a14092f3b78c8f1b66db6f4cf8caec1555b6f967b3b
      responses:
        '200':
          description: Obtain metadata information associated with a specific transaction.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/tx_content_metadata_cbor'
        '400':
          $ref: '#/components/responses/400'
        '403':
          $ref: '#/components/responses/403'
        '404':
          $ref: '#/components/responses/404'
        '418':
          $ref: '#/components/responses/418'
        '429':
          $ref: '#/components/responses/429'
        '500':
          $ref: '#/components/responses/500'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /txs/{hash}/redeemers:
    get:
      tags:
      - Cardano » Transactions
      summary: Blockfrost Transaction Redeemers
      description: Obtain the transaction redeemers.
      parameters:
      - in: path
        name: hash
        required: true
        schema:
          type: string
          format: 64-character case-sensitive hexadecimal string.
        description: Hash of the requested transaction
        example: 6e5f825c82c1c6d6b77f2a14092f3b78c8f1b66db6f4cf8caec1555b6f967b3b
      responses:
        '200':
          description: Obtain information about redeemers within a specific transaction.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/tx_content_redeemers'
        '400':
          $ref: '#/components/responses/400'
        '403':
          $ref: '#/components/responses/403'
        '404':
          $ref: '#/components/responses/404'
        '418':
          $ref: '#/components/responses/418'
        '429':
          $ref: '#/components/responses/429'
        '500':
          $ref: '#/components/responses/500'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /txs/{hash}/required_signers:
    get:
      tags:
      - Cardano » Transactions
      summary: Blockfrost Transaction Required Signers
      description: Obtain the extra transaction witnesses.
      parameters:
      - in: path
        name: hash
        required: true
        schema:
          type: string
          format: 64-character case-sensitive hexadecimal string.
        description: Hash of the transaction
        example: 6e5f825c82c1c6d6b77f2a14092f3b78c8f1b66db6f4cf8caec1555b6f967b3b
      responses:
        '200':
          description: Query required signers (extra transaction witnesses)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/tx_content_required_signers'
        '400':
          $ref: '#/components/responses/400'
        '403':
          $ref: '#/components/responses/403'
        '404':
          $ref: '#/components/responses/404'
        '418':
          $ref: '#/components/responses/418'
        '429':
          $ref: '#/components/responses/429'
        '500':
          $ref: '#/components/responses/500'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /txs/{hash}/cbor:
    get:
      tags:
      - Cardano » Transactions
      summary: Blockfrost Transaction CBOR
      description: Obtain the CBOR serialized transaction
      parameters:
      - in: path
        name: hash
        required: true
        schema:
          type: string
          format: 64-character case-sensitive hexadecimal string.
        description: Hash of the transaction
        example: 6e5f825c82c1c6d6b77f2a14092f3b78c8f1b66db6f4cf8caec1555b6f967b3b
      responses:
        '200':
          description: Query transaction CBOR
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/tx_content_cbor'
        '400':
          $ref: '#/components/responses/400'
        '403':
          $ref: '#/components/responses/403'
        '404':
          $ref: '#/components/responses/404'
        '418':
          $ref: '#/components/responses/418'
        '429':
          $ref: '#/components/responses/429'
        '500':
          $ref: '#/components/responses/500'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /tx/submit:
    post:
      tags:
      - Cardano » Transactions
      summary: Blockfrost Submit a Transaction
      description: "Submit an already serialized transaction to the network.\n\n<p>\n  <span class=\"hosted\">Hosted</span> Endpoint only available for hosted variant.\n</p>\n"
      x-codeSamples:
      - lang: Shell
        label: cURL
        source: "# Assuming `data` is a serialized transaction on the file-system.\ncurl \"https://cardano-mainnet.blockfrost.io/api/v0/tx/submit\" \\\n  -X POST \\\n  -H \"Content-Type: application/cbor\" \\\n  -H \"project_id: $PROJECT_ID\" \\\n  --data-binary @./data\n"
      - lang: Shell
        label: cardano-cli
        source: "# Assuming `tx.signed` is signed transaction constructed by cardano-cli\nxxd -r -p <<< $(jq .cborHex tx.signed) > tx.submit-api.raw\ncurl \"https://cardano-mainnet.blockfrost.io/api/v0/tx/submit\" \\\n  -X POST \\\n  -H \"Content-Type: application/cbor\" \\\n  -H \"project_id: $PROJECT_ID\" \\\n  --data-binary @./tx.submit-api.raw\n"
      requestBody:
        description: 'The transaction to submit, serialized in CBOR.

          '
        required: true
        content:
          application/cbor:
            schema:
              type: string
              description: 'The transaction to submit, serialized in CBOR.

                '
            example: '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

              '
      responses:
        '200':
          description: Return the ID of the submitted transaction.
          content:
            application/json:
              schema:
                type: string
                format: hex
                minLength: 64
                maxLength: 64
                example: d1662b24fa9fe985fc2dce47455df399cb2e31e1e1819339e885801cc3578908
        '400':
          $ref: '#/components/responses/400'
        '403':
          $ref: '#/components/responses/403'
        '404':
          $ref: '#/components/responses/404'
        '418':
          $ref: '#/components/responses/418'
        '425':
          $ref: '#/components/responses/425'
        '429':
          $ref: '#/components/responses/429'
        '500':
          $ref: '#/components/responses/500'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  responses:
    '500':
      description: Internal Server Error
      content:
        application/json:
          schema:
            type: object
            properties:
              status_code:
                type: integer
                example: 500
              error:
                type: string
                example: Internal Server Error
              message:
                type: string
                example: An unexpected response was received from the backend.
            required:
            - error
            - message
            - status_code
    '418':
      description: IP has been auto-banned for extensive sending of requests after usage limit has been reached
      content:
        application/json:
          schema:
            type: object
            properties:
              status_code:
                type: integer
                example: 418
              error:
                type: string
                example: Requested Banned
              message:
                type: string
                example: IP has been auto-banned for flooding.
            required:
            - error
            - message
            - status_code
    '403':
      description: Authentication secret is missing or invalid
      content:
        application/json:
          schema:
            type: object
            properties:
              status_code:
                type: integer
                example: 403
              error:
                type: string
                example: Forbidden
              message:
                type: string
                example: Invalid project token.
            required:
            - error
            - message
            - status_code
    '429':
      description: Usage limit reached
      content:
        application/json:
          schema:
            type: object
            properties:
              status_code:
                type: integer
                example: 429
              error:
                type: string
                example: Project Over Limit
              message:
                type: string
                example: Usage is over limit.
            required:
            - error
            - message
            - status_code
    '400':
      description: Bad request
      content:
        application/json:
          schema:
            type: object
            properties:
              status_code:
                type: integer
                example: 400
              error:
                type: string
                example: Bad Request
              message:
                type: string
                example: Backend did not understand your request.
            required:
            - error
            - message
            - status_code
    '425':
      description: Mempool is already full, not accepting new txs straight away
      content:
        application/json:
          schema:
            type: object
            properties:
              status_code:
                type: integer
                example: 425
              error:
                type: string
                example: Mempool Full
              message:
                type: string
                example: Mempool is full, please try resubmitting again later.
            required:
            - error
            - message
            - status_code
    '404':
      description: Component not found
      content:
        application/json:
          schema:
            type: object
            properties:
              status_code:
                type: integer
                example: 404
              error:
                type: string
                example: Not Found
              message:
                type: string
                example: The requested component has not been found.
            required:
            - error
            - message
            - status_code
  schemas:
    tx_content_pool_certs:
      type: array
      items:
        type: object
        properties:
          cert_index:
            type: integer
            example: 0
            description: Index of the certificate within the transaction
          pool_id:
            type: string
            example: pool1pu5jlj4q9w9jlxeu370a3c9myx47md5j5m2str0naunn2q3lkdy
            description: Bech32 encoded pool ID
          vrf_key:
            type: string
            example: 0b5245f9934ec2151116fb8ec00f35fd00e0aa3b075c4ed12cce440f999d8233
            description: VRF key hash
          pledge:
            type: string
            example: '5000000000'
            description: Stake pool certificat

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# Full source: https://raw.githubusercontent.com/api-evangelist/blockfrost/refs/heads/main/openapi/blockfrost-cardano-transactions-api-openapi.yml
Blockfrost Cardano » Transactions API

Documentation

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OpenAPI Specification
