# OpenSea AI integration on Definable

> OpenSea is the world's first and largest NFT marketplace for NFTs and crypto collectibles.

## What this connects

OpenSea is the world's first and largest NFT marketplace for NFTs and crypto collectibles.

Vendor: https://opensea.io

## Tools available

**24** tools available. First 12:

- `OPEN_SEA_BUILD_CRITERIA_OFFER` — Build criteria offer — Build a portion of a criteria offer including the merkle tree needed to post an offer.
- `OPEN_SEA_CANCEL_ORDER` — Cancel order — Offchain cancel a single order, offer or listing, by its order hash when protected by the SignedZone. Protocol and Chain are required to prevent hash collisions. Please note cancellation is only assured if a fulfillment signature was not vended prior to cancellation.
- `OPEN_SEA_CREATE_CRITERIA_OFFER` — Create criteria offer — Create a criteria offer to purchase any NFT in a collection or which matches the specified trait.
- `OPEN_SEA_CREATE_ITEM_OFFER` — Create item offer — Create an offer to purchase a single NFT (ERC721 or ERC1155).
- `OPEN_SEA_CREATE_LISTING` — Create listing — List a single NFT (ERC721 or ERC1155) for sale on the OpenSea marketplace.
- `OPEN_SEA_FULFILL_LISTING` — Fulfill listing — Retrieve all the information, including signatures, needed to fulfill a listing directly onchain.
- `OPEN_SEA_FULFILL_OFFER` — Fulfill offer — Retrieve all the information, including signatures, needed to fulfill an offer directly onchain.
- `OPEN_SEA_GET_ACCOUNT` — Get account — Get an OpenSea Account Profile including details such as bio, social media usernames, and profile image.
- `OPEN_SEA_GET_ALL_LISTINGS_BY_COLLECTION` — Get all listings by collection — Get all active, valid listings for a single collection.
- `OPEN_SEA_GET_ALL_OFFERS_BY_COLLECTION` — Get all offers by collection — Get all active, valid offers for the specified collection. This includes individual and criteria offers.
- `OPEN_SEA_GET_BEST_LISTING_BY_NFT` — Get best listing by nft — Get the best listing for an NFT.
- `OPEN_SEA_GET_BEST_LISTINGS_BY_COLLECTION` — Get best listings by collection — Get the cheapest priced active, valid listings on a single collection.

## Auth

Auth schemes: `API_KEY`.

## How agents use OpenSea

Inside a Definable workflow, OpenSea is one of the tools the **Distributor specialist** can call. Example coordination patterns:

- **Researcher → OpenSea** — the Researcher (GPT-5.5) pulls context from OpenSea (records, threads, documents), synthesises findings, and briefs the rest of the team.
- **Writer → Distributor → OpenSea** — the Writer (Claude Opus 4.7) drafts copy in brand voice, the Verifier passes it, then the Distributor writes the result into OpenSea (create record, post message, draft email).
- **Designer / Engineer → Distributor → OpenSea** — the Designer ships an asset or the Engineer ships a code change, the Distributor delivers it via OpenSea (attach file, open PR comment, post status).

The Verifier checks every OpenSea call. On rate limit, schema drift, or auth refresh it self-heals and retries — the workflow completes without manual intervention.

## Categories

- ecommerce — https://definable.ai/apps/category/ecommerce/

## Related

- HTML page: https://definable.ai/apps/open_sea/
- Same category (ecommerce): https://definable.ai/apps/category/ecommerce/
- All integrations: https://definable.ai/apps/
- Workflow (multi-agent loop): https://definable.ai/workflow/
- Apps llms.txt index: https://definable.ai/llms-apps.txt