OpenSea MCP Server for LangChainGive LangChain instant access to 35 tools to Cancel Order, Generate Listing Fulfillment, Generate Offer Fulfillment, and more

Name: OpenSea
Price: 29 USD
Availability: InStock
Rating: 0.2 (1 reviews)
Author: Vinkius

GDPR Free for Subscribers

LangChain is the leading Python framework for composable LLM applications. Connect OpenSea through Vinkius and LangChain agents can call every tool natively. combine them with retrievers, memory, and output parsers for sophisticated AI pipelines.

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The OpenSea MCP Server for LangChain is a standout in the Ecommerce category — giving your AI agent 35 tools to work with, ready to go from day one.

Built for AI Agents by Vinkius

Vinkius delivers Streamable HTTP and SSE to any MCP client

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ChatGPT

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VS Code

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+ other MCP clients

python

import asyncio
from langchain_mcp_adapters.client import MultiServerMCPClient
from langchain_openai import ChatOpenAI
from langgraph.prebuilt import create_react_agent

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    async with MultiServerMCPClient({
        "opensea": {
            "transport": "streamable_http",
            "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
        }
    }) as client:
        tools = client.get_tools()
        agent = create_react_agent(
            ChatOpenAI(model="gpt-4o"),
            tools,
        )
        response = await agent.ainvoke({
            "messages": [{
                "role": "user",
                "content": "Using OpenSea, show me what tools are available.",
            }]
        })
        print(response["messages"][-1].content)

asyncio.run(main())

Fully ManagedVinkius Servers

60%Token savings

High SecurityEnterprise-grade

IAMAccess control

EU AI ActCompliant

DLPData protection

V8 IsolateSandboxed

Ed25519Audit chain

<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About OpenSea MCP Server

Connect OpenSea to your AI agent to navigate the NFT ecosystem with ease. From tracking trending collections to deep-diving into specific token traits, this server provides real-time access to the largest digital marketplace.

LangChain's ecosystem of 500+ components combines seamlessly with OpenSea through native MCP adapters. Connect 35 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.

What you can do

Market Insights — Get trending and top collections, or fetch comprehensive stats like volume and floor prices using get_trending_collections and get_collection_stats.
NFT Deep-Dive — Retrieve full metadata, rarity, and ownership details for any NFT with get_nft and get_nft_metadata.
Collection Analysis — List collection traits, holders, and detailed fee structures via get_collection_traits and get_collection_holders.
Wallet Monitoring — Check account profiles and fungible token balances for any wallet address with get_account and get_token_balances.
Multi-Chain Support — Query data across all blockchains supported by OpenSea using get_chains.

The OpenSea MCP Server exposes 35 tools through the Vinkius. Connect it to LangChain in under two minutes — credentials fully managed, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

All 35 OpenSea tools available for LangChain

When LangChain connects to OpenSea through Vinkius, your AI agent gets direct access to every tool listed below — spanning nft, marketplace, digital-assets, and more. Every call runs in a secure, isolated environment with full audit visibility. Beyond a simple connection, you get real-time monitoring of agent activity, enterprise governance, and optimized token usage.

cancel

Cancel order on OpenSea

Off-chain cancellation of an order

generate

Generate listing fulfillment on OpenSea

Get data to buy an NFT

generate

Generate offer fulfillment on OpenSea

Get data to accept an offer

get

Get account on OpenSea

Get an OpenSea account profile

get

Get best listing nft on OpenSea

Get the lowest price listing for a specific NFT

get

Get best offer nft on OpenSea

Get the highest offer for a specific NFT

get

Get chains on OpenSea

Get all blockchain chains supported by OpenSea

get

Get collection on OpenSea

Get detailed information about a collection

get

Get collection holders on OpenSea

Get a list of wallet addresses holding items in a collection

get

Get collection stats on OpenSea

Get comprehensive statistics for a collection

get

Get collection traits on OpenSea

List all available traits in a collection

get

Get drop by slug on OpenSea

Get stages, supply, and minting details for a specific drop

get

Get drops on OpenSea

List featured, upcoming, or recently minted drops

get

Get nft on OpenSea

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

get

Get nft metadata on OpenSea

Get detailed metadata including image URLs and external links for an NFT

get

Get nft owners on OpenSea

List all owners of a specific NFT

get

Get nfts by account on OpenSea

Get NFTs owned by a specific wallet

get

Get nfts by collection on OpenSea

Get all NFTs in a specific collection

get

Get nfts by contract on OpenSea

Get all NFTs for a specific smart contract

get

Get order on OpenSea

Retrieve order details

get

Get swap quote on OpenSea

Get a price quote for swapping tokens

get

Get token on OpenSea

Get metadata for a fungible token

get

Get token balances on OpenSea

Get fungible token balances for a specific wallet

get

Get top collections on OpenSea

Get top collections

get

Get transaction receipt on OpenSea

Check the status of a submitted swap or fulfillment

get

Get trending collections on OpenSea

Get trending collections

list

List collections on OpenSea

List collections

list

List events on OpenSea

Get historical marketplace events

list

List listings collection all on OpenSea

Get all active listings for a collection

list

List offers collection all on OpenSea

Get all active offers for a collection

post

Post criteria offer on OpenSea

Create a collection or trait-wide offer

post

Post listing on OpenSea

Create a new listing

post

Post offer on OpenSea

Create an offer on a single item

post

Post swap execute on OpenSea

Get executable transaction data for a swap

action

Search on OpenSea

Search across collections, NFTs, tokens, and accounts

Connect OpenSea to LangChain via MCP

Follow these steps to wire OpenSea into LangChain. The entire setup takes under two minutes — your credentials stay safe behind Vinkius.

Install dependencies

Run pip install langchain langchain-mcp-adapters langgraph langchain-openai

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Run the agent

Save the code and run python agent.py

Explore tools

The agent discovers 35 tools from OpenSea via MCP

Why Use LangChain with the OpenSea MCP Server

LangChain provides unique advantages when paired with OpenSea through the Model Context Protocol.

The largest ecosystem of integrations, chains, and agents. combine OpenSea MCP tools with 500+ LangChain components

Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step

LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging

Memory and conversation persistence let agents maintain context across OpenSea queries for multi-turn workflows

OpenSea + LangChain Use Cases

Practical scenarios where LangChain combined with the OpenSea MCP Server delivers measurable value.

RAG with live data: combine OpenSea tool results with vector store retrievals for answers grounded in both real-time and historical data

Autonomous research agents: LangChain agents query OpenSea, synthesize findings, and generate comprehensive research reports

Multi-tool orchestration: chain OpenSea tools with web scrapers, databases, and calculators in a single agent run

Production monitoring: use LangSmith to trace every OpenSea tool call, measure latency, and optimize your agent's performance

Example Prompts for OpenSea in LangChain

Ready-to-use prompts you can give your LangChain agent to start working with OpenSea immediately.

"Show me the trending NFT collections on OpenSea right now."

"Get the floor price and volume stats for the 'boredapeyachtclub' collection."

"Check the profile and token balances for wallet address 0x123..."

Troubleshooting OpenSea MCP Server with LangChain

Common issues when connecting OpenSea to LangChain through Vinkius, and how to resolve them.

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

OpenSea + LangChain FAQ

Common questions about integrating OpenSea MCP Server with LangChain.

How does LangChain connect to MCP servers?

Use langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.

Which LangChain agent types work with MCP?

All agent types including ReAct, OpenAI Functions, and custom agents work with MCP tools. The tools appear as standard LangChain tools after the adapter wraps them.