Cardano Cardano » Assets API

openapi: 3.2.0
info:
  version: 0.1.89
  title: Blockfrost.io ~ API Documentation Cardano » Accounts Cardano » Assets 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 » Assets
paths:
  /assets:
    get:
      tags:
      - Cardano » Assets
      summary: Assets
      description: 'List of assets. If an asset is completely burned,

        it will stay on the list with quantity 0 (order of assets is immutable).

        '
      parameters:
      - in: query
        name: count
        required: false
        schema:
          type: integer
          minimum: 1
          maximum: 100
          default: 100
        description: The number of results displayed on one page.
      - in: query
        name: page
        required: false
        schema:
          type: integer
          minimum: 1
          maximum: 21474836
          default: 1
        description: The page number for listing the results.
      - in: query
        name: order
        required: false
        schema:
          type: string
          enum:
          - asc
          - desc
          default: asc
        description: 'The ordering of items from the point of view of the blockchain,

          not the page listing itself. By default, we return oldest first, newest last.

          Ordering in this case is based on the time of the first mint transaction.

          '
      responses:
        '200':
          description: Return list of assets
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/assets'
        '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'
  /assets/{asset}:
    get:
      tags:
      - Cardano » Assets
      summary: Specific asset
      description: Information about a specific asset
      parameters:
      - in: path
        name: asset
        required: true
        schema:
          type: string
        description: Concatenation of the policy_id and hex-encoded asset_name
        example: b0d07d45fe9514f80213f4020e5a61241458be626841cde717cb38a76e7574636f696e
      responses:
        '200':
          description: Return the information about a specific asset
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/asset'
        '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'
  /assets/{asset}/history:
    get:
      tags:
      - Cardano » Assets
      summary: Asset history
      description: History of a specific asset
      parameters:
      - in: path
        name: asset
        required: true
        schema:
          type: string
        description: Concatenation of the policy_id and hex-encoded asset_name
        example: b0d07d45fe9514f80213f4020e5a61241458be626841cde717cb38a76e7574636f696e
      - in: query
        name: count
        required: false
        schema:
          type: integer
          minimum: 1
          maximum: 100
          default: 100
        description: The number of results displayed on one page.
      - in: query
        name: page
        required: false
        schema:
          type: integer
          minimum: 1
          maximum: 21474836
          default: 1
        description: The page number for listing the results.
      - in: query
        name: order
        required: false
        schema:
          type: string
          enum:
          - asc
          - desc
          default: asc
        description: 'The ordering of items from the point of view of the blockchain,

          not the page listing itself. By default, we return oldest first, newest last.

          '
      responses:
        '200':
          description: Return the information about the history of a specific asset
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/asset_history'
        '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'
  /assets/{asset}/txs:
    get:
      deprecated: true
      tags:
      - Cardano » Assets
      summary: Asset txs
      description: List of a specific asset transactions
      parameters:
      - in: path
        name: asset
        required: true
        schema:
          type: string
        description: Concatenation of the policy_id and hex-encoded asset_name
        example: b0d07d45fe9514f80213f4020e5a61241458be626841cde717cb38a76e7574636f696e
      - in: query
        name: count
        required: false
        schema:
          type: integer
          minimum: 1
          maximum: 100
          default: 100
        description: The number of results displayed on one page.
      - in: query
        name: page
        required: false
        schema:
          type: integer
          minimum: 1
          maximum: 21474836
          default: 1
        description: The page number for listing the results.
      - in: query
        name: order
        required: false
        schema:
          type: string
          enum:
          - asc
          - desc
          default: asc
        description: 'The ordering of items from the point of view of the blockchain,

          not the page listing itself. By default, we return oldest first, newest last.

          '
      responses:
        '200':
          description: Return the information about the history of a specific asset
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/asset_txs'
        '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'
  /assets/{asset}/transactions:
    get:
      tags:
      - Cardano » Assets
      summary: Asset transactions
      description: List of a specific asset transactions
      parameters:
      - in: path
        name: asset
        required: true
        schema:
          type: string
        description: Concatenation of the policy_id and hex-encoded asset_name
        example: b0d07d45fe9514f80213f4020e5a61241458be626841cde717cb38a76e7574636f696e
      - in: query
        name: count
        required: false
        schema:
          type: integer
          minimum: 1
          maximum: 100
          default: 100
        description: The number of results displayed on one page.
      - in: query
        name: page
        required: false
        schema:
          type: integer
          minimum: 1
          maximum: 21474836
          default: 1
        description: The page number for listing the results.
      - in: query
        name: order
        required: false
        schema:
          type: string
          enum:
          - asc
          - desc
          default: asc
        description: 'The ordering of items from the point of view of the blockchain,

          not the page listing itself. By default, we return oldest first, newest last.

          '
      responses:
        '200':
          description: Return the information about the history of a specific asset
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/asset_transactions'
        '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'
  /assets/{asset}/addresses:
    get:
      tags:
      - Cardano » Assets
      summary: Asset addresses
      description: List of a addresses containing a specific asset
      parameters:
      - in: path
        name: asset
        required: true
        schema:
          type: string
        description: Concatenation of the policy_id and hex-encoded asset_name
        example: b0d07d45fe9514f80213f4020e5a61241458be626841cde717cb38a76e7574636f696e
      - in: query
        name: count
        required: false
        schema:
          type: integer
          minimum: 1
          maximum: 100
          default: 100
        description: The number of results displayed on one page.
      - in: query
        name: page
        required: false
        schema:
          type: integer
          minimum: 1
          maximum: 21474836
          default: 1
        description: The page number for listing the results.
      - in: query
        name: order
        required: false
        schema:
          type: string
          enum:
          - asc
          - desc
          default: asc
        description: 'The ordering of items from the point of view of the blockchain,

          not the page listing itself. By default, we return oldest first, newest last.

          '
      responses:
        '200':
          description: Return the information about the history of a specific asset
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/asset_addresses'
        '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'
  /assets/policy/{policy_id}:
    get:
      tags:
      - Cardano » Assets
      summary: Assets of a specific policy
      description: List of asset minted under a specific policy
      parameters:
      - in: path
        name: policy_id
        required: true
        schema:
          type: string
        description: Specific policy_id
        example: 476039a0949cf0b22f6a800f56780184c44533887ca6e821007840c3
      - in: query
        name: count
        required: false
        schema:
          type: integer
          minimum: 1
          maximum: 100
          default: 100
        description: The number of results displayed on one page.
      - in: query
        name: page
        required: false
        schema:
          type: integer
          minimum: 1
          maximum: 21474836
          default: 1
        description: The page number for listing the results.
      - in: query
        name: order
        required: false
        schema:
          type: string
          enum:
          - asc
          - desc
          default: asc
        description: 'The ordering of items from the point of view of the blockchain,

          not the page listing itself. By default, we return oldest first, newest last.

          '
      responses:
        '200':
          description: Return the information about a specific asset
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/asset_policy'
        '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'
components:
  responses:
    '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
    '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
    '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
    '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
    '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
  schemas:
    asset_transactions:
      type: array
      items:
        type: object
        properties:
          tx_hash:
            type: string
            description: Hash of the transaction
          tx_index:
            type: integer
            description: Transaction index within the block
          block_height:
            type: integer
            description: Block height
          block_time:
            type: integer
            example: 1635505891
            description: Block creation time in UNIX time
        required:
        - tx_hash
        - tx_index
        - block_height
        - block_time
      example:
      - tx_hash: 8788591983aa73981fc92d6cddbbe643959f5a784e84b8bee0db15823f575a5b
        tx_index: 6
        block_height: 69
        block_time: 1635505891
      - tx_hash: 52e748c4dec58b687b90b0b40d383b9fe1f24c1a833b7395cdf07dd67859f46f
        tx_index: 9
        block_height: 4547
        block_time: 1635505987
      - tx_hash: e8073fd5318ff43eca18a852527166aa8008bee9ee9e891f585612b7e4ba700b
        tx_index: 0
        block_height: 564654
        block_time: 1834505492
    assets:
      type: array
      items:
        type: object
        properties:
          asset:
            type: string
            format: Concatenation of the policy_id and hex-encoded asset_name
            description: Asset identifier
          quantity:
            type: string
            description: Current asset quantity
        required:
        - asset
        - quantity
      example:
      - asset: b0d07d45fe9514f80213f4020e5a61241458be626841cde717cb38a76e7574636f696e
        quantity: '1'
      - asset: b0d07d45fe9514f80213f4020e5a61241458be626841cde717cb38a76e75d
        quantity: '100000'
      - asset: 6804edf9712d2b619edb6ac86861fe93a730693183a262b165fcc1ba1bc99cad
        quantity: '18605647'
    asset_policy:
      type: array
      items:
        type: object
        properties:
          asset:
            type: string
            description: Concatenation of the policy_id and hex-encoded asset_name
          quantity:
            type: string
            description: Current asset quantity
        required:
        - asset
        - quantity
      example:
      - asset: b0d07d45fe9514f80213f4020e5a61241458be626841cde717cb38a76e7574636f696e
        quantity: '1'
      - asset: b0d07d45fe9514f80213f4020e5a61241458be626841cde717cb38a766e
        quantity: '100000'
      - asset: b0d07d45fe9514f80213f4020e5a61241458be626841cde717cb574636f696e
        quantity: '18605647'
    asset_history:
      type: array
      items:
        type: object
        properties:
          tx_hash:
            type: string
            description: Hash of the transaction containing the asset action
          action:
            type: string
            enum:
            - minted
            - burned
            description: Action executed upon the asset policy
          amount:
            type: string
            description: Asset amount of the specific action
        required:
        - tx_hash
        - action
        - amount
      example:
      - tx_hash: 2dd15e0ef6e6a17841cb9541c27724072ce4d4b79b91e58432fbaa32d9572531
        amount: '10'
        action: minted
      - tx_hash: 9c190bc1ac88b2ab0c05a82d7de8b71b67a9316377e865748a89d4426c0d3005
        amount: '5'
        action: burned
      - tx_hash: 1a0570af966fb355a7160e4f82d5a80b8681b7955f5d44bec0dde628516157f0
        amount: '5'
        action: burned
    asset_addresses:
      type: array
      items:
        type: object
        properties:
          address:
            type: string
            description: Address containing the specific asset
          quantity:
            type: string
            description: Asset quantity on the specific address
        required:
        - address
        - quantity
      example:
      - address: addr1qxqs59lphg8g6qndelq8xwqn60ag3aeyfcp33c2kdp46a09re5df3pzwwmyq946axfcejy5n4x0y99wqpgtp2gd0k09qsgy6pz
        quantity: '1'
      - address: addr1qyhr4exrgavdcn3qhfcc9f939fzsch2re5ry9cwvcdyh4x4re5df3pzwwmyq946axfcejy5n4x0y99wqpgtp2gd0k09qdpvhza
        quantity: '100000'
      - address: addr1q8zup8m9ue3p98kxlxl9q8rnyan8hw3ul282tsl9s326dfj088lvedv4zckcj24arcpasr0gua4c5gq4zw2rpcpjk2lq8cmd9l
        quantity: '18605647'
    asset_txs:
      type: array
      items:
        type: string
        description: Hash of the transaction
      example:
      - 8788591983aa73981fc92d6cddbbe643959f5a784e84b8bee0db15823f575a5b
      - 52e748c4dec58b687b90b0b40d383b9fe1f24c1a833b7395cdf07dd67859f46f
      - e8073fd5318ff43eca18a852527166aa8008bee9ee9e891f585612b7e4ba700b
    asset:
      type: object
      properties:
        asset:
          type: string
          example: b0d07d45fe9514f80213f4020e5a61241458be626841cde717cb38a76e7574636f696e
          description: Hex-encoded asset full name
        policy_id:
          type: string
          example: b0d07d45fe9514f80213f4020e5a61241458be626841cde717cb38a7
          description: Policy ID of the asset
        asset_name:
          type:
          - string
          - 'null'
          example: 6e7574636f696e
          description: Hex-encoded asset name of the asset
        fingerprint:
          type: string
          example: asset1pkpwyknlvul7az0xx8czhl60pyel45rpje4z8w
          description: CIP14 based user-facing fingerprint
        quantity:
          type: string
          example: '12000'
          description: Current asset quantity
        initial_mint_tx_hash:
          type: string
          example: 6804edf9712d2b619edb6ac86861fe93a730693183a262b165fcc1ba1bc99cad
          description: ID of the initial minting transaction
        mint_or_burn_count:
          type: integer
          example: 1
          description: Count of mint and burn transactions
        onchain_metadata:
          type:
          - object
          - 'null'
          additionalProperties: true
          description: 'On-chain metadata which SHOULD adhere to the valid standards,

            based on which we perform the look up and display the asset

            (best effort)

            '
        onchain_metadata_standard:
          type:
          - string
          - 'null'
          enum:
          - CIP25v1
          - CIP25v2
          - CIP68v1
          - CIP68v2
          - CIP68v3
          description: 'If on-chain metadata passes validation, we display the standard

            under which it is valid

            '
        onchain_metadata_extra:
          type:
          - string
          - 'null'
          description: 'Arbitrary plutus data (CIP68).

            '
        metadata:
          type:
          - object
          - 'null'
          description: 'Off-chain metadata fetched from GitHub based on network.

            Mainnet: https://github.com/cardano-foundation/cardano-token-registry/

            Testnet: https://github.com/input-output-hk/metadata-registry-testnet/

            '
          properties:
            name:
              type: string
              example: nutcoin
              description: Asset name
            description:
              type: string
              example: The Nut Coin
              description: Asset description
            ticker:
              type:
              - string
              - 'null'
              example: nutc
            url:
              type:
              - string
              - 'null'
              example: https://www.stakenuts.com/
              description: Asset website
            logo:
              type:
              - string
              - 'null'
              example: iVBORw0KGgoAAAANSUhEUgAAADAAAAAoCAYAAAC4h3lxAAAABGdBTUEAALGPC/xhBQAAACBjSFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAABmJLR0QA/wD/AP+gvaeTAAAAB3RJTUUH5QITCDUPjqwFHwAAB9xJREFUWMPVWXtsU9cZ/8499/r6dZ3E9rUdO7ZDEgglFWO8KaOsJW0pCLRKrN1AqqYVkqoqrYo0ja7bpElru1WairStFKY9WzaE1E1tx+jokKqwtqFNyhKahEJJyJNgJ37E9r1+3HvO

# --- truncated at 32 KB (35 KB total) ---
# Full source: https://raw.githubusercontent.com/api-evangelist/cardano/refs/heads/main/openapi/cardano-cardano-assets-api-openapi.yml