aid: opensea
url: https://raw.githubusercontent.com/api-evangelist/opensea/refs/heads/main/apis.yml
name: OpenSea
kind: company
description: OpenSea is the world's largest NFT marketplace, offering a REST API for
  querying NFT collections, listings, offers, orders, and events, and for managing
  programmatic NFT trading across 27+ blockchain chains including Ethereum, Polygon,
  Base, Solana, Arbitrum, and more.
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - NFT
  - Marketplace
  - Web3
  - Blockchain
  - Trading
  - Digital Assets
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.19'
apis:
  - aid: opensea:nft-api
    name: OpenSea NFT API
    description: Retrieve individual NFT metadata, ownership, rarity, analytics, and
      owners across supported blockchain chains. Supports batch NFT retrieval, metadata
      refresh, validation, and collection-based listing.
    humanURL: https://docs.opensea.io/reference/api-overview
    baseURL: https://api.opensea.io/api/v2
    tags:
      - NFT
      - Metadata
      - Ownership
    properties:
      - type: Documentation
        url: https://docs.opensea.io/reference/api-overview
      - type: OpenAPI
        url: https://raw.githubusercontent.com/ProjectOpenSea/api-types/main/opensea-api.json
  - aid: opensea:collection-api
    name: OpenSea Collection API
    description: Query NFT collection details, traits, floor prices, holders, offer
      aggregates, trending and top collections. Supports batch retrieval by slugs and
      discovery of new and popular collections.
    humanURL: https://docs.opensea.io/reference/api-overview
    baseURL: https://api.opensea.io/api/v2
    tags:
      - Collections
      - Discovery
      - Floor Price
    properties:
      - type: Documentation
        url: https://docs.opensea.io/reference/api-overview
      - type: OpenAPI
        url: https://raw.githubusercontent.com/ProjectOpenSea/api-types/main/opensea-api.json
  - aid: opensea:listing-api
    name: OpenSea Listing API
    description: Create, fulfill, and query NFT listings on OpenSea. Supports best
      listing retrieval per collection or NFT, cross-chain fulfillment, and collection
      sweep purchases with automatic substitution for unavailable items.
    humanURL: https://docs.opensea.io/reference/api-overview
    baseURL: https://api.opensea.io/api/v2
    tags:
      - Listings
      - Marketplace
      - Trading
    properties:
      - type: Documentation
        url: https://docs.opensea.io/reference/api-overview
      - type: OpenAPI
        url: https://raw.githubusercontent.com/ProjectOpenSea/api-types/main/opensea-api.json
  - aid: opensea:offer-api
    name: OpenSea Offer API
    description: Build, create, fulfill, and query NFT offers and bids on OpenSea.
      Supports collection-wide offers, trait-based offers, item-specific bids, and
      best-offer retrieval per NFT.
    humanURL: https://docs.opensea.io/reference/api-overview
    baseURL: https://api.opensea.io/api/v2
    tags:
      - Offers
      - Bids
      - Marketplace
    properties:
      - type: Documentation
        url: https://docs.opensea.io/reference/api-overview
      - type: OpenAPI
        url: https://raw.githubusercontent.com/ProjectOpenSea/api-types/main/opensea-api.json
  - aid: opensea:order-api
    name: OpenSea Order API
    description: Look up and cancel individual orders by chain, protocol address, and
      order hash. Supports both Seaport listing and offer orders.
    humanURL: https://docs.opensea.io/reference/api-overview
    baseURL: https://api.opensea.io/api/v2
    tags:
      - Orders
      - Seaport
    properties:
      - type: Documentation
        url: https://docs.opensea.io/reference/api-overview
      - type: OpenAPI
        url: https://raw.githubusercontent.com/ProjectOpenSea/api-types/main/opensea-api.json
  - aid: opensea:events-api
    name: OpenSea Events API
    description: Retrieve historical NFT marketplace events including sales, transfers,
      mints, and cancellations by account, collection, or individual NFT. Also supports
      real-time event streaming via the Stream API WebSocket.
    humanURL: https://docs.opensea.io/reference/api-overview
    baseURL: https://api.opensea.io/api/v2
    tags:
      - Events
      - Analytics
      - History
    properties:
      - type: Documentation
        url: https://docs.opensea.io/reference/api-overview
      - type: OpenAPI
        url: https://raw.githubusercontent.com/ProjectOpenSea/api-types/main/opensea-api.json
  - aid: opensea:token-api
    name: OpenSea Token API
    description: Retrieve fungible token details, balances, holders, liquidity pools,
      price history, OHLCV candlestick data, trending tokens, and swap quotes for
      token trading across supported chains.
    humanURL: https://docs.opensea.io/reference/api-overview
    baseURL: https://api.opensea.io/api/v2
    tags:
      - Tokens
      - DeFi
      - Price
    properties:
      - type: Documentation
        url: https://docs.opensea.io/reference/api-overview
      - type: OpenAPI
        url: https://raw.githubusercontent.com/ProjectOpenSea/api-types/main/opensea-api.json
  - aid: opensea:account-api
    name: OpenSea Account API
    description: Retrieve OpenSea account profiles, resolve ENS/usernames, and access
      portfolio analytics including net worth history, P&L tracking, owned collections,
      favorites, listings, and offers.
    humanURL: https://docs.opensea.io/reference/api-overview
    baseURL: https://api.opensea.io/api/v2
    tags:
      - Accounts
      - Portfolio
      - Identity
    properties:
      - type: Documentation
        url: https://docs.opensea.io/reference/api-overview
      - type: OpenAPI
        url: https://raw.githubusercontent.com/ProjectOpenSea/api-types/main/opensea-api.json
  - aid: opensea:drops-api
    name: OpenSea Drops API
    description: Discover NFT drops, check mint eligibility, build mint transactions,
      deploy NFT contracts, and track transaction receipts for minting operations.
    humanURL: https://docs.opensea.io/reference/api-overview
    baseURL: https://api.opensea.io/api/v2
    tags:
      - Drops
      - Minting
      - Contracts
    properties:
      - type: Documentation
        url: https://docs.opensea.io/reference/api-overview
      - type: OpenAPI
        url: https://raw.githubusercontent.com/ProjectOpenSea/api-types/main/opensea-api.json
  - aid: opensea:search-api
    name: OpenSea Search API
    description: Search across OpenSea collections, NFTs, tokens, and accounts by
      keyword. Powers discovery of assets and creators across the OpenSea marketplace.
    humanURL: https://docs.opensea.io/reference/api-overview
    baseURL: https://api.opensea.io/api/v2
    tags:
      - Search
      - Discovery
    properties:
      - type: Documentation
        url: https://docs.opensea.io/reference/api-overview
      - type: OpenAPI
        url: https://raw.githubusercontent.com/ProjectOpenSea/api-types/main/opensea-api.json
  - aid: opensea:stream-api
    name: OpenSea Stream API
    description: Real-time WebSocket event streaming for NFT marketplace activity
      per collection, including item listed, item sold, item transferred, item metadata
      updates, item cancelled, item received offer, and item received bid events.
    humanURL: https://docs.opensea.io/reference/stream-js
    baseURL: wss://stream-api.opensea.io/socket
    tags:
      - WebSocket
      - Streaming
      - Real-time
      - Events
    properties:
      - type: Documentation
        url: https://docs.opensea.io/reference/stream-js
      - type: SDKs
        url: https://github.com/ProjectOpenSea/stream-js
  - aid: opensea:swap-api
    name: OpenSea Swap API
    description: Get swap quotes and execute token trading with executable transaction
      data across supported blockchain chains.
    humanURL: https://docs.opensea.io/reference/api-overview
    baseURL: https://api.opensea.io/api/v2
    tags:
      - Swap
      - DeFi
      - Trading
    properties:
      - type: Documentation
        url: https://docs.opensea.io/reference/api-overview
      - type: OpenAPI
        url: https://raw.githubusercontent.com/ProjectOpenSea/api-types/main/opensea-api.json
common:
  - type: Authentication
    url: https://docs.opensea.io/reference/api-keys
  - type: Plans
    url: plans/opensea-plans.yml
  - type: RateLimits
    url: rate-limits/opensea-rate-limits.yml
  - type: FinOps
    url: finops/opensea-finops.yml
  - type: SDKs
    url: https://github.com/ProjectOpenSea/opensea-sdk
  - type: CLI
    url: https://github.com/ProjectOpenSea/opensea-cli
  - type: OpenAPI
    url: https://raw.githubusercontent.com/ProjectOpenSea/api-types/main/opensea-api.json
  - type: TermsOfService
    url: https://opensea.io/tos
  - type: PrivacyPolicy
    url: https://opensea.io/privacy
  - type: StatusPage
    url: https://status.opensea.io
  - type: Support
    url: https://support.opensea.io
  - type: Blog
    url: https://opensea.io/blog
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com