How to integrate Open sea MCP with OpenClaw

OpenClaw is the fastest growing agent harness out there, which can work 24/7 to automate almost any kind of tasks. However, its capabilities are limited to the tools it has access to. Composio allows your OpenClaw to access Open sea with authentication management handled for you. You can execute actions on Open sea via your favorite OpenClaw interface (Telegram, WhatsApp, TUI, etc), whichever you prefer.

Open sea logoOpen sea
Api Key

OpenSea is the world's first and largest NFT marketplace for digital collectibles and crypto assets. Instantly buy, sell, and explore NFTs across blockchains, all in one place.

24 Tools

Introduction

OpenClaw is the fastest growing agent harness out there, which can work 24/7 to automate almost any kind of tasks. However, its capabilities are limited to the tools it has access to. Composio allows your OpenClaw to access Open sea with authentication management handled for you. You can execute actions on Open sea via your favorite OpenClaw interface (Telegram, WhatsApp, TUI, etc), whichever you prefer.

Also integrate Open sea with

Why use Composio?

Apart from a managed and hosted MCP server, you will get:

  • Programmatic tool calling allows LLMs to write its code in a remote workbench to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
  • Handling Large tool responses out of LLM context to minimize context rot.
  • Dynamic just-in-time access to 20,000 tools across 1000+ other Apps for cross-app workflows. It loads the tools you need, so LLMs aren't overwhelmed by tools you don't need.

How to install Open sea with OpenClaw

Using Composio API Key and Setup Prompt

Copy the setup prompt from the OpenClaw dashboard
  • Run it in your OpenClaw chat interface.
  • Authenticate Open sea from the dashboard
  • Go back to your OpenClaw interface and start asking questions.

Using OpenClaw/Composio Plugin

1. Install OpenClaw Composio plugin

bash
openclaw plugins install @composio/openclaw-plugin

2. Copy the API Key from dashboard.composio.dev

3. Setup OpenClaw Config

bash
openclaw config set plugins.entries.composio.config.consumerKey "ck_your_key_here"

4. Restart OpenClaw

bash
openclaw gateway restart

5. Go to your chat interface and start asking questions.

6. When prompted, authenticate the app and you're all set.

How It Works

The plugin connects to Composio's MCP server at https://connect.composio.dev/mcp and registers all available tools directly into the OpenClaw agent. Tools are called by name — no extra search or execute steps needed.

If a tool returns an auth error, the agent will prompt you to connect that toolkit at dashboard.composio.dev.

Configuration

bash
{
  "plugins": {
    "entries": {
      "composio": {
        "enabled": true,
        "config": {
          "consumerKey": "ck_your_key_here"
        }
      }
    }
  }
}
OptionDescriptionDefault
enabledEnable or disable the plugintrue
consumerKeyYour Composio consumer key (ck_...)
mcpUrlMCP server URL (advanced)https://connect.composio.dev/mcp

What is the Open sea MCP server, and what's possible with it?

The Open sea MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your OpenSea account. It provides structured and secure access to your NFT marketplace activity, so your agent can perform actions like listing NFTs for sale, creating and fulfilling offers, checking account details, and managing your marketplace orders on your behalf.

  • NFT listing automation: Quickly list any ERC721 or ERC1155 NFT for sale on OpenSea, specifying price and collection details—all handled by your agent.
  • Offer creation and management: Instruct your agent to create criteria-based or single-item offers to purchase specific NFTs or those matching certain traits within a collection.
  • Order and listing fulfillment: Let your agent retrieve all necessary information and signatures to fulfill existing listings or offers, making transactions seamless and secure.
  • Marketplace activity insights: Have the agent pull your profile details, fetch all active listings or offers for a given collection, and provide you with up-to-date marketplace snapshots.
  • Order cancellation and management: Direct your agent to cancel open orders, listings, or offers off-chain, helping you stay in control of your marketplace participation with ease.

Conclusion

You've successfully integrated Open sea with OpenClaw using Composio plugin. Now interact with Open sea directly from your terminal, Web UI, or any messenger app using natural language commands.

Key benefits of this setup:

  • Seamless integration across TUI, Web UIs, and Messenger apps like Telegram, WhatsApp, Slack, etc.
  • Natural language commands for Open sea operations
  • Managed authentication through Composio
  • Access to 20,000+ tools across 1000+ apps for cross-app workflows
  • Programmatic tool calling for complex tool chaining

Next steps:

  • Try asking OpenClaw to perform various Open sea operations
  • Explore cross-app workflows by connecting more toolkits like Calendar, Slack, Notion, etc.
  • Build complex automation scripts that leverage OpenClaw's 24/7 running capabilities
TOOLS

Supported Tools

Every Open sea action and event your agent gets out of the box.

Build criteria offer

Build a portion of a criteria offer including the merkle tree needed to post an offer.

Cancel order

Offchain cancel a single order, offer or listing, by its order hash when protected by the SignedZone.

Create criteria offer

Create a criteria offer to purchase any NFT in a collection or which matches the specified trait.

Create item offer

Create an offer to purchase a single NFT (ERC721 or ERC1155).

Create listing

List a single NFT (ERC721 or ERC1155) for sale on the OpenSea marketplace.

Fulfill listing

Retrieve all the information, including signatures, needed to fulfill a listing directly onchain.

Fulfill offer

Retrieve all the information, including signatures, needed to fulfill an offer directly onchain.

Get account

Get an OpenSea Account Profile including details such as bio, social media usernames, and profile image.

Get all listings by collection

Get all active, valid listings for a single collection.

Get all offers by collection

Get all active, valid offers for the specified collection.

Get best listing by nft

Get the best listing for an NFT.

Get best listings by collection

Get the cheapest priced active, valid listings on a single collection.

Get best offer by nft

Get the best offers for an NFT.

Get collection

Get a single collection including details such as fees, traits, and links.

Get collections

Get a list of OpenSea collections with optional filtering and pagination.

Get collection stats

Get stats for a single collection on OpenSea.

Get contract

Get a smart contract for a given chain and address.

Get events

Get a list of events from OpenSea based on various filters like timestamps and event types.

Get listings

Get the complete set of active, valid listings.

Get nft

Get metadata, traits, ownership information, and rarity for a single NFT.

Get order

Get a single order, offer or listing, by its order hash.

Get payment token

Get a smart contract for a given chain and address.

Get traits

Get the traits in a collection.

Refresh nft metadata

Refresh metadata for a single NFT.

FAQ

Frequently asked questions

With a standalone Open sea MCP server, the agents and LLMs can only access a fixed set of Open sea tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Open sea and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. OpenClaw fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Open sea tools.

Yes, absolutely. You can configure which Open sea scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Open sea data and credentials are handled as safely as possible.

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