Cardano

aid: cardano
url: https://raw.githubusercontent.com/api-evangelist/cardano/refs/heads/main/apis.yml
name: Cardano
tags:
  - Blockchain
  - Cryptocurrency
  - Proof-of-Stake
  - Smart Contracts
  - Web3
type: Index
kind: company
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
access: 3rd-Party
created: '2026-06-13'
modified: '2026-06-13'
position: Consumer
description: >-
  Cardano is a proof-of-stake blockchain platform designed for secure and scalable decentralized applications and smart
  contracts. Developer API access to the Cardano network is provided primarily through Blockfrost, a hosted REST API
  service that exposes over 100 endpoints covering transactions, addresses, assets, blocks, epochs, stake pools,
  governance, scripts, metadata, and mempool data. Authentication uses project-scoped API keys passed as HTTP headers.
  Blockfrost operates on Cardano Mainnet, Preview, and Pre-Production testnets, and also supports IPFS storage and the
  Milkomeda sidechain. SDKs are available for 15+ programming languages.
apis:
  - aid: cardano:blockfrost-cardano-api
    name: Blockfrost Cardano API
    tags:
      - Blockchain
      - Cardano
      - Transactions
      - Addresses
      - Assets
      - Blocks
      - Epochs
      - Pools
      - Smart Contracts
    image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    baseURL: https://cardano-mainnet.blockfrost.io/api/v0
    humanURL: https://blockfrost.dev/start-building/cardano/
    properties:
      - url: https://blockfrost.dev/start-building/cardano/
        type: Documentation
      - url: https://docs.blockfrost.io/
        type: APIReference
      - url: openapi/blockfrost-cardano-api-openapi.yml
        type: OpenAPI
      - url: https://blockfrost.dev/overview/plans-and-billing
        type: Plans
      - url: plans/cardano-plans-pricing.yml
        type: Plans
      - url: rate-limits/cardano-rate-limits.yml
        type: RateLimits
      - url: finops/cardano-finops.yml
        type: FinOps
    description: >-
      The Blockfrost Cardano API provides instant, highly optimized REST access to the Cardano blockchain without
      requiring developers to run their own node or manage infrastructure. The API covers over 100 endpoints across
      accounts, addresses, assets, blocks, epochs, governance, ledger state, mempool, metadata, network statistics,
      pools, scripts, transactions, and utilities. All responses are JSON; amounts are in Lovelaces (1 ADA = 1,000,000
      Lovelaces); addresses, stake addresses, and pool IDs use Bech32 encoding; assets, policies, scripts, and
      transaction hashes use lowercase hex. Authentication requires a project_id header obtained by registering at
      blockfrost.io. Pagination defaults to 100 results per page; ordering defaults to ascending (oldest first) and
      can be reversed with ?order=desc.
    x-features:
      - project_id header authentication
      - Cardano Mainnet, Preview, and Pre-Production testnet support
      - Bech32 and lowercase-hex encoded identifiers
      - Paginated responses with configurable ordering
      - IPFS and Milkomeda sidechain endpoints
      - 15+ official SDKs across programming languages
    x-use-cases:
      - Query transaction details, UTXOs, and redeemers for on-chain analytics
      - Look up ADA and native-asset balances for any address
      - Monitor stake pool performance, delegators, and reward history
      - Track epoch parameters and protocol changes over time
      - Inspect Plutus and native scripts for smart-contract verification
      - Submit and monitor transactions via the mempool endpoint
  - aid: cardano:blockfrost-ipfs-api
    name: Blockfrost IPFS API
    tags:
      - Blockchain
      - Cardano
      - IPFS
      - Storage
      - Decentralized Storage
    image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    baseURL: https://ipfs.blockfrost.io/api/v0
    humanURL: https://blockfrost.dev/
    properties:
      - url: https://docs.blockfrost.io/
        type: Documentation
      - url: https://blockfrost.dev/overview/plans-and-billing
        type: Plans
    description: >-
      Blockfrost also operates as an IPFS provider, enabling developers building on Cardano to pin and retrieve
      content-addressed files via the InterPlanetary File System. The IPFS API base URL is
      https://ipfs.blockfrost.io/api/v0 and uses the same project_id authentication as the Cardano mainnet API.
      Storage quota varies by subscription plan, ranging from 100 MB on the free Starter tier to 50,000 MB on
      the Developer tier.
    x-use-cases:
      - Pin NFT metadata and media files referenced in Cardano native asset policies
      - Store off-chain data linked from on-chain transaction metadata
      - Retrieve IPFS content via Blockfrost gateway for dApp frontends
maintainers:
  - FN: Kin Lane
    email: [email protected]