Blockfrost
Blockfrost is a RESTful API service providing access to the Cardano blockchain and its ecosystem. It serves as an infrastructure layer for developers building dApps, wallets, NFT platforms, DeFi protocols, and analytics tools on Cardano. Blockfrost provides endpoints for querying blocks, transactions, accounts, addresses, native assets, epochs, governance data, and IPFS storage, supporting both mainnet and testnet networks.
Blockfrost publishes 20 APIs on the APIs.io network, including Cardano » Accounts API, Cardano » Addresses API, Cardano » Assets API, and 17 more. Tagged areas include Blockchain, Cardano, Cryptocurrency, DApps, and NFT.
The Blockfrost catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.
Blockfrost’s developer surface includes authentication, documentation, getting-started guide, pricing, support, and 14 more developer resources.
Kin Score
APIs 20
Individual APIs this provider publishes, each with its own machine-readable definition.
Blockfrost Cardano » Accounts API
The Cardano » Accounts API from Blockfrost — 12 operation(s) for cardano » accounts.
Blockfrost Cardano » Addresses API
The Cardano » Addresses API from Blockfrost — 7 operation(s) for cardano » addresses.
Blockfrost Cardano » Assets API
The Cardano » Assets API from Blockfrost — 7 operation(s) for cardano » assets.
Blockfrost Cardano » Blocks API
The Cardano » Blocks API from Blockfrost — 11 operation(s) for cardano » blocks.
Blockfrost Cardano » Epochs API
The Cardano » Epochs API from Blockfrost — 10 operation(s) for cardano » epochs.
Blockfrost Cardano » Governance API
The Cardano » Governance API from Blockfrost — 17 operation(s) for cardano » governance.
Blockfrost Cardano » Ledger API
The Cardano » Ledger API from Blockfrost — 1 operation(s) for cardano » ledger.
Blockfrost Cardano » Mempool API
The Cardano » Mempool API from Blockfrost — 3 operation(s) for cardano » mempool.
Blockfrost Cardano » Metadata API
The Cardano » Metadata API from Blockfrost — 3 operation(s) for cardano » metadata.
Blockfrost Cardano » Network API
The Cardano » Network API from Blockfrost — 2 operation(s) for cardano » network.
Blockfrost Cardano » Pools API
The Cardano » Pools API from Blockfrost — 12 operation(s) for cardano » pools.
Blockfrost Cardano » Scripts API
The Cardano » Scripts API from Blockfrost — 7 operation(s) for cardano » scripts.
Blockfrost Cardano » Transactions API
The Cardano » Transactions API from Blockfrost — 14 operation(s) for cardano » transactions.
Blockfrost Cardano » Utilities API
The Cardano » Utilities API from Blockfrost — 3 operation(s) for cardano » utilities.
Blockfrost Health API
The Health API from Blockfrost — 3 operation(s) for health.
Blockfrost IPFS » Add API
The IPFS » Add API from Blockfrost — 1 operation(s) for ipfs » add.
Blockfrost IPFS » Gateway API
The IPFS » Gateway API from Blockfrost — 1 operation(s) for ipfs » gateway.
Blockfrost IPFS » Pins API
The IPFS » Pins API from Blockfrost — 4 operation(s) for ipfs » pins.
Blockfrost Metrics API
The Metrics API from Blockfrost — 2 operation(s) for metrics.
Blockfrost Nut.link API
The Nut.link API from Blockfrost — 4 operation(s) for nut.link.
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Postman Collections 20
Ready-to-run Postman collections for exercising this provider's APIs.
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GraphQL 1
GraphQL schemas published by this provider.
Blockfrost GraphQL Schema
This is a conceptual GraphQL schema for the [Blockfrost API](https://docs.blockfrost.io/), a RESTful infrastructure service that provides access to the Cardano blockchain and it...
GRAPHQLPricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Blockfrost Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
Blockfrost Finops
FINOPSFeatures 7
Notable capabilities this provider offers.
Cardano Blockchain Access
Query blocks, transactions, slots, epochs, accounts, and addresses on the Cardano mainnet and testnet networks.
Native Asset Support
Full support for Cardano native assets including fungible tokens, NFTs, and multi-asset UTXOs with on-chain metadata (CIP-25, CIP-68).
Stake Pool and Delegation Data
Query stake pool information, delegation history, rewards, and account activity for Cardano staking workflows.
Governance Data
Access Cardano governance data including proposals, DRep registrations, and voting activity introduced in the Conway era.
IPFS Integration
Built-in IPFS API for storing and retrieving off-chain NFT metadata and other content via Blockfrost's IPFS gateway.
Multi-Network Support
Single API surface covering Cardano mainnet, preview testnet, preprod testnet, and the Midnight blockchain.
Transaction Submission
Submit signed transactions directly to the Cardano network via the Blockfrost API without running a local node.
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Semantic Vocabularies 1
JSON-LD contexts and semantic vocabularies used across these APIs.
Blockfrost Context
JSON-LDSpectral Rules 2
Spectral governance rulesets for linting and validating these APIs.
Blockfrost API Rules
SPECTRALBlockfrost API Rules
SPECTRALJSON Schema 20
Standalone JSON Schema definitions for this provider's data models.
block_content_addresses
JSON SCHEMAblock_content_array
JSON SCHEMAblock_content
JSON SCHEMAblock_content_txs_cbor
JSON SCHEMAblock_content_txs
JSON SCHEMAdrep_delegators
JSON SCHEMAdrep_metadata
JSON SCHEMAdrep
JSON SCHEMAdrep_updates
JSON SCHEMAdrep_votes
JSON SCHEMAdreps
JSON SCHEMAgenesis_content
JSON SCHEMAonchain_metadata_cip25
JSON SCHEMAonchain_metadata_cip68_ft_333
JSON SCHEMAonchain_metadata_cip68_nft_222
JSON SCHEMAonchain_metadata_cip68_rft_444
JSON SCHEMAproposal_parameters
JSON SCHEMAproposal
JSON SCHEMAproposal_withdrawals
JSON SCHEMAproposals
JSON SCHEMAScroll for all 20
JSON Structure 20
JSON Structure definitions describing this provider's data shapes.
Blockfrost Block Content Addresses Structure
JSON STRUCTUREBlockfrost Block Content Array Structure
JSON STRUCTUREBlockfrost Block Content Structure
JSON STRUCTUREBlockfrost Block Content Txs Cbor Structure
JSON STRUCTUREBlockfrost Block Content Txs Structure
JSON STRUCTUREBlockfrost Drep Delegators Structure
JSON STRUCTUREBlockfrost Drep Metadata Structure
JSON STRUCTUREBlockfrost Drep Structure
JSON STRUCTUREBlockfrost Drep Updates Structure
JSON STRUCTUREBlockfrost Drep Votes Structure
JSON STRUCTUREBlockfrost Dreps Structure
JSON STRUCTUREBlockfrost Genesis Content Structure
JSON STRUCTUREBlockfrost Onchain Metadata Cip25 Structure
JSON STRUCTUREBlockfrost Onchain Metadata Cip68 Ft 333 Structure
JSON STRUCTUREBlockfrost Onchain Metadata Cip68 Nft 222 Structure
JSON STRUCTUREBlockfrost Onchain Metadata Cip68 Rft 444 Structure
JSON STRUCTUREBlockfrost Proposal Parameters Structure
JSON STRUCTUREBlockfrost Proposal Structure
JSON STRUCTUREBlockfrost Proposal Withdrawals Structure
JSON STRUCTUREBlockfrost Proposals Structure
JSON STRUCTUREScroll for all 20
Examples 20
Example request and response payloads for these APIs.
Blockfrost Drep Example
EXAMPLEBlockfrost Dreps Example
EXAMPLEBlockfrost Proposal Example
EXAMPLEBlockfrost Proposals Example
EXAMPLEScroll for all 20
Security Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Use Cases 5
What developers build with this provider.
dApp Development
Developers build Cardano dApps using Blockfrost to query blockchain state, submit transactions, and interact with smart contracts.
NFT Platform Integration
NFT marketplaces and minting platforms use Blockfrost to track asset minting, transfers, and metadata across the Cardano network.
DeFi Protocol Building
DeFi protocols integrate Blockfrost to monitor liquidity pool states, track DEX transactions, and manage smart contract interactions.
Wallet Development
Cardano wallet applications use Blockfrost to fetch UTXOs, balances, transaction history, and submit transactions.
Blockchain Analytics
Analytics platforms query Blockfrost for on-chain data including block history, epoch statistics, and network activity metrics.
Integrations 4
Pre-built integrations with other platforms and tools.
Mesh SDK
The Mesh JavaScript/TypeScript SDK integrates with Blockfrost as a provider for Cardano dApp development.
Lucid Evolution
Lucid Evolution (TypeScript library) supports Blockfrost as a blockchain provider for transaction building and submission.
PyCardano
PyCardano Python library uses Blockfrost as a chain context provider for Cardano smart contract development.
Cardano Serialization Library
The Cardano Serialization Library (CSL) pairs with Blockfrost for transaction construction and UTXO management.
Resources
Get Started 2
Portal, sign-up, and the first successful call
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 2
Pagination, idempotency, versioning, errors, and events
Build 3
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 3
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API