openapi: 3.0.3
info:
version: 0.1.87
title: Blockfrost.io ~ API Documentation Cardano » Accounts Cardano » Blocks 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[](./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 » Blocks
paths:
/blocks/latest:
get:
tags:
- Cardano » Blocks
summary: Blockfrost Latest Block
description: 'Return the latest block available to the backends, also known as the
tip of the blockchain.
'
responses:
'200':
description: Return the contents of the block
content:
application/json:
schema:
$ref: '#/components/schemas/block_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
/blocks/latest/txs:
get:
tags:
- Cardano » Blocks
summary: Blockfrost Latest Block Transactions
description: Return the transactions within the latest block.
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: 'Ordered by tx index in the block.
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 contents of the block
content:
application/json:
schema:
$ref: '#/components/schemas/block_content_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'
x-microcks-operation:
delay: 0
dispatcher: FALLBACK
/blocks/latest/txs/cbor:
get:
tags:
- Cardano » Blocks
summary: Blockfrost Latest Block Transactions with CBOR Data
description: Return the transactions within the latest block, including CBOR representations.
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: 'Ordered by tx index in the block.
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 contents of the block with CBOR data
content:
application/json:
schema:
$ref: '#/components/schemas/block_content_txs_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
/blocks/{hash_or_number}:
get:
tags:
- Cardano » Blocks
summary: Blockfrost Specific Block
description: 'Return the content of a requested block.
'
parameters:
- in: path
name: hash_or_number
required: true
schema:
type: string
format: 64-character case-sensitive hexadecimal string or block number.
description: Hash or number of the requested block.
example: 4ea1ba291e8eef538635a53e59fddba7810d1679631cc3aed7c8e6c4091a516a
responses:
'200':
description: Return the contents of the block
content:
application/json:
schema:
$ref: '#/components/schemas/block_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
/blocks/{hash_or_number}/next:
get:
tags:
- Cardano » Blocks
summary: Blockfrost Listing of Next Blocks
description: 'Return the list of blocks following a specific block.
'
parameters:
- in: path
name: hash_or_number
required: true
schema:
type: string
format: 64-character case-sensitive hexadecimal string or block number.
description: Hash of the requested block.
example: 5ea1ba291e8eef538635a53e59fddba7810d1679631cc3aed7c8e6c4091a516a
- 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.
responses:
'200':
description: Return the contents of the block
content:
application/json:
schema:
$ref: '#/components/schemas/block_content_array'
'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
/blocks/{hash_or_number}/previous:
get:
tags:
- Cardano » Blocks
summary: Blockfrost Listing of Previous Blocks
description: 'Return the list of blocks preceding a specific block.
'
parameters:
- in: path
name: hash_or_number
required: true
schema:
type: string
format: 64-character case-sensitive hexadecimal string or block number.
description: Hash of the requested block
example: '4873401'
- 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.
responses:
'200':
description: Return the contents of the block
content:
application/json:
schema:
$ref: '#/components/schemas/block_content_array'
'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
/blocks/slot/{slot_number}:
get:
tags:
- Cardano » Blocks
summary: Blockfrost Specific Block in a Slot
description: 'Return the content of a requested block for a specific slot.
'
parameters:
- in: path
name: slot_number
required: true
schema:
type: integer
format: slot number
description: Slot position for requested block.
example: 30895909
responses:
'200':
description: Return the contents of the block
content:
application/json:
schema:
$ref: '#/components/schemas/block_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
/blocks/epoch/{epoch_number}/slot/{slot_number}:
get:
tags:
- Cardano » Blocks
summary: Blockfrost Specific Block in a Slot in an Epoch
description: 'Return the content of a requested block for a specific slot in an epoch.
'
parameters:
- in: path
name: epoch_number
required: true
schema:
type: integer
format: slot number
description: Epoch for specific epoch slot.
example: 219
- in: path
name: slot_number
required: true
schema:
type: integer
format: slot number
description: Slot position for requested block.
example: 30895909
responses:
'200':
description: Return the contents of the block
content:
application/json:
schema:
$ref: '#/components/schemas/block_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
/blocks/{hash_or_number}/txs:
get:
tags:
- Cardano » Blocks
summary: Blockfrost Block Transactions
description: Return the transactions within the block.
parameters:
- in: path
name: hash_or_number
required: true
schema:
type: string
format: 64-character case-sensitive hexadecimal string or block number.
description: Hash of the requested block.
example: '4873401'
- 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: 'Ordered by tx index in the block.
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 contents of the block
content:
application/json:
schema:
$ref: '#/components/schemas/block_content_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'
x-microcks-operation:
delay: 0
dispatcher: FALLBACK
/blocks/{hash_or_number}/txs/cbor:
get:
tags:
- Cardano » Blocks
summary: Blockfrost Block Transactions with CBOR Data
description: Return the transactions within the block, including CBOR representations.
parameters:
- in: path
name: hash_or_number
required: true
schema:
type: string
format: 64-character case-sensitive hexadecimal string or block number.
description: Hash of the requested block.
example: '4873401'
- 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: 'Ordered by tx index in the block.
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 contents of the block with CBOR data
content:
application/json:
schema:
$ref: '#/components/schemas/block_content_txs_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
/blocks/{hash_or_number}/addresses:
get:
tags:
- Cardano » Blocks
summary: Blockfrost Addresses Affected in a Specific Block
description: Return list of addresses affected in the specified block with additional information, sorted by the bech32 address, ascending.
parameters:
- in: path
name: hash_or_number
required: true
schema:
type: string
format: 64-character case-sensitive hexadecimal string or block number.
description: Hash of the requested block.
example: '4873401'
- 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.
responses:
'200':
description: Return the contents of the block
content:
application/json:
schema:
$ref: '#/components/schemas/block_content_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'
x-microcks-operation:
delay: 0
dispatcher: FALLBACK
components:
schemas:
block_content_addresses:
type: array
items:
type: object
properties:
address:
type: string
description: Address that was affected in the specified block
transactions:
type: array
description: List of transactions containing the address either in their inputs or outputs. Sorted by transaction index within a block, ascending.
items:
type: object
properties:
tx_hash:
type: string
required:
- tx_hash
required:
- address
- transactions
example:
- address: addr1q9ld26v2lv8wvrxxmvg90pn8n8n5k6tdst06q2s856rwmvnueldzuuqmnsye359fqrk8hwvenjnqultn7djtrlft7jnq7dy7wv
transactions:
- tx_hash: 1a0570af966fb355a7160e4f82d5a80b8681b7955f5d44bec0dce628516157f0
- address: addr1qxqs59lphg8g6qndelq8xwqn60ag3aeyfcp33c2kdp46a09re5df3pzwwmyq946axfcejy5n4x0y99wqpgtp2gd0k09qsgy6pz
transactions:
- tx_hash: 1a0570af966fb355a7160e4f82d5a80b8681b7955f5d44bec0dce628516157d0
block_content_txs:
type: array
items:
type: string
description: Hash of the transaction
example:
- 8788591983aa73981fc92d6cddbbe643959f5a784e84b8bee0db15823f575a5b
- 4eef6bb7755d8afbeac526b799f3e32a624691d166657e9d862aaeb66682c036
- 52e748c4dec58b687b90b0b40d383b9fe1f24c1a833b7395cdf07dd67859f46f
- e8073fd5318ff43eca18a852527166aa8008bee9ee9e891f585612b7e4ba700b
block_content_txs_cbor:
type: array
items:
type: object
properties:
tx_hash:
type: string
description: Hash of the transaction
cbor:
type: string
description: CBOR representation of the transaction data
required:
- tx_hash
- cbor
example:
- tx_hash: 8788591983aa73981fc92d6cddbbe643959f5a784e84b8bee0db15823f575a5b
cbor: a10081825820cccfe2be401c85342497f6e1e4a241629790b0fb7f2af5f18441779d11f25b1f5840c38a93d63faac9335ecc2f24ead7ca2d46a6637f354ee707bb06eb8192af2fa6a676fb72f8772cd1c42b491ec6dfc798c76b61c55dc4eecab362e71ffab26305
- tx_hash: 4eef6bb7755d8afbeac526b799f3e32a624691d166657e9d862aaeb66682c036
cbor: bb06eb8192af2fa6a676fb72f8772cd1c42b491ec6dfc798c76b61c55dc4eecab362e71ffab26305
block_content_array:
type: array
items:
$ref: '#/components/schemas/block_content'
block_content:
type: object
properties:
time:
type: integer
example: 1641338934
description: Block creation time in UNIX time
height:
type: integer
nullable: true
example: 15243593
description: Block number
hash:
type: string
example: 4ea1ba291e8eef538635a53e59fddba7810d1679631cc3aed7c8e6c4091a516a
description: Hash of the block
slot:
type: integer
nullable: true
example: 412162133
description: Slot number
epoch:
type: integer
nullable: true
example: 425
description: Epoch number
epoch_slot:
type: integer
nullable: true
example: 12
description: Slot within the epoch
slot_leader:
type: string
example: pool1pu5jlj4q9w9jlxeu370a3c9myx47md5j5m2str0naunn2qnikdy
description: Bech32 ID of the slot leader or specific block description in case there is no slot leader
size:
type: integer
example: 3
description: Block size in Bytes
tx_count:
type: integer
example: 1
description: Number of transactions in the block
output:
type: string
nullable: true
example: '128314491794'
description: Total output within the block in Lovelaces
fees:
type: string
nullable: true
example: '592661'
description: Total fees within the block in Lovelaces
block_vrf:
type: string
nullable: true
example: vrf_vk1wf2k6lhujezqcfe00l6zetxpnmh9n6mwhpmhm0dvfh3fxgmdnrfqkms8ty
description: VRF key of the block
minLength: 65
maxLength: 65
op_cert:
type: string
nullable: true
example: da905277534faf75dae41732650568af545134ee08a3c0392dbefc8096ae177c
description: The hash of the operational certificate of the block producer
op_cert_counter:
type: string
nullable: true
example: '18'
description: The value of the counter used to produce the operational certificate
previous_block:
type: string
nullable: true
example: 43ebccb3ac72c7cebd0d9b755a4b08412c9f5dcb81b8a0ad1e3c197d29d47b05
description: Hash of the previous block
next_block:
type: string
nullable: true
example: 8367f026cf4b03e116ff8ee5daf149b55ba5a6ec6dec04803b8dc317721d15fa
description: Hash of the next block
confirmations:
type: integer
example: 4698
description: Number of block confirmations
required:
- time
- height
- hash
- slot
- epoch
- epoch_slot
- slot_leader
- size
- tx_count
- output
- fees
- block_vrf
- op_cert
- op_cert_counter
- previous_block
- next_block
- confirmations
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
'4
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# Full source: https://raw.githubusercontent.com/api-evangelist/blockfrost/refs/heads/main/openapi/blockfrost-cardano-blocks-api-openapi.yml