How to integrate Alchemy MCP with Hermes

Connect Hermes to Alchemy MCP. Show all nfts owned by this wallet, get recent sales for a specific nft collection, and more using natural language, with authentication handled for you.

Alchemy logoAlchemy
Api Key

Alchemy is a blockchain development platform offering APIs and tools for Ethereum apps. It simplifies building and scaling Web3 projects with robust infrastructure.

36 Tools

Introduction

Hermes is a 24/7 autonomous agent that lives on your computer or server — it remembers what it learns and evolves as your usage grows.

This guide explains the easiest and most robust way to connect your Alchemy account to Hermes. You can do this through either Composio Connect CLI or Composio Connect MCP. For personal use we recommend the CLI, but you won't go wrong with MCP either.

Also integrate Alchemy with

What is Composio Connect?

Composio Connect is a consumer offering that lets anyone plug 1,500+ applications directly into their agent harness — including Hermes. It can:

  • Search and load tools from relevant toolkits on-demand, reducing context usage.
  • Chain multiple tools to accomplish complex workflows via a remote workbench, without excessive back-and-forth with the LLM.
  • Manage app authentication end-to-end with zero manual overhead.

Integrating Alchemy with Hermes

Using Composio Connect CLI

1. Install the Composio CLI

Run the install script directly, or paste https://composio.dev/hermes into your Hermes chat box to have it installed for you.

bash
curl -fsSL https://composio.dev/install | bash
Hermes authenticating with Composio

2. Authenticate

Once the CLI is installed, ask Hermes to authenticate with Composio.

3. Connect to Alchemy

Ask your agent to connect to Alchemy, or simply request any Alchemy-related task. Hermes will prompt you to authenticate and authorize access.

4. Done. You're all set with a new Alchemy connection.


Using Composio Connect MCP

1. Get your MCP URL and API Key

Go to dashboard.composio.dev and copy your Connect MCP URL and API key.

Copy MCP URL and API key from Composio dashboard

2. Open the Hermes config file

bash
nano ~/.hermes/config.yaml

3. Add the Composio Connect MCP server

bash
mcp_servers:
  composio:
    url: "https://connect.composio.dev/mcp"
    headers:
      x-consumer-api-key: "YOUR_COMPOSIO_API_KEY"
    connect_timeout: 60
    timeout: 180

Save with Ctrl + O, Enter, then exit with Ctrl + X.

4. Restart your Hermes agent

Once restarted, ask your agent to connect to Alchemy or request any Alchemy-related task. It will prompt you to authenticate and authorize access.

5. Done!

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

The Alchemy MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Alchemy account. It provides structured and secure access to blockchain portfolio, token, transaction, and NFT data, so your agent can inspect wallet balances, retrieve transaction history, check token prices, analyze NFTs, and identify spam contracts on your behalf.

  • Wallet and token tracking: Have your agent fetch native and fungible token holdings for wallet addresses across supported blockchain networks.
  • Token pricing and metadata: Let the agent retrieve current or historical token prices and look up details such as names, symbols, decimals, and logos.
  • Transaction history: Direct your agent to review transaction activity for wallet addresses across supported networks.
  • NFT portfolio and market research: Instruct your agent to inspect owned NFTs, collection and contract metadata, NFT sales, marketplace floor prices, and individual NFT attributes.
  • Spam contract detection: Have your agent check whether an NFT contract is marked as spam by Alchemy.

Way Forward

With Alchemy connected, Hermes can now act on your behalf whenever it detects a relevant task or you ask it to.

From here, you can extend Hermes further:

  • Connect more apps: Calendar, Slack, Notion, Linear, and hundreds of others are available through the same Composio Connect setup. Each new integration compounds what Hermes can do for you.
  • Build workflows across tools: Once multiple apps are connected, Hermes can chain actions together — turn an email into a calendar invite, a Slack message into a Linear ticket, or a meeting note into a follow-up draft.
  • Let it learn your patterns: The more you use Hermes, the better it gets at anticipating how you'd handle recurring tasks. Give it feedback on drafts and decisions, and it will adapt.

If you run into trouble or want to share what you've built, join the community or check out the Docs for deeper configuration options.

TOOLS

Supported Tools

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

Compute NFT Rarity

Tool to compute the rarity of each attribute for a specific NFT based on its collection.

Get NFT Collection Metadata

Get NFT collection metadata by OpenSea slug on Ethereum mainnet, including available name, description, social links, and floor price, without requiring a contract address.

Get Collections for Owner

Tool to retrieve all NFT collections held by a specified owner address.

Get Contract Metadata Batch V3

Retrieve metadata for multiple Ethereum mainnet NFT contracts in a single batch request.

Get Contract Metadata V3

Get metadata for an Ethereum mainnet NFT contract, including available name, symbol, total supply, token type, deployer, deployment block, and OpenSea collection details.

Get Contracts for Owner (NFT API v3)

Retrieve NFT contracts from which an Ethereum mainnet wallet holds tokens, with available contract metadata, spam classification, and OpenSea metadata.

Get NFT Floor Price

Get Ethereum mainnet NFT collection floor prices from OpenSea and LooksRare, including available price, currency, collection URL, and retrieval timestamp.

Get Historical Token Prices

Retrieves historical price data for a token over a specified time range with configurable intervals.

Get NFT Contracts By Address

Tool to retrieve NFT contracts associated with one or more wallet addresses across multiple blockchain networks.

Get NFT Metadata

Retrieves metadata for a specific NFT on Ethereum mainnet, including available contract details, media URLs, attributes, and OpenSea data.

Get NFT Metadata Batch

Retrieves metadata for up to 100 NFTs on Ethereum mainnet in a single request, including available contract details, media URLs, attributes, and collection data.

Get NFT Sales V3

Retrieves Ethereum mainnet NFT sales through on-chain marketplaces using Alchemy's v3 API, including fees and transaction details.

Get NFTs for Collection V3

Retrieves NFTs in an Ethereum mainnet collection using an OpenSea collection slug or contract address.

Get NFTs for Contract

Retrieves NFTs for an Ethereum mainnet NFT contract, supporting ERC721 and ERC1155.

Get NFTs for Owner

Retrieves NFTs owned by an address on Ethereum mainnet, supporting ERC721 and ERC1155 tokens, optional metadata, filtering, and pagination.

Get Owners for Collection

Retrieves owner addresses for an Ethereum mainnet NFT collection contract, with optional token balances per owner and pagination.

Get Owners for Contract

Retrieves owners of NFTs in an Ethereum mainnet contract, with optional token balances and pagination.

Get NFT Owners (v3)

Retrieves owner addresses for a specific Ethereum mainnet NFT using Alchemy's v3 API.

Get Portfolio NFTs By Address

Tool to fetch NFTs owned by multiple wallet addresses across different blockchain networks.

Get Token Prices By Symbol

Tool to get current token prices by symbol (e.

Get Token Balances

This tool retrieves ERC20 token balances for a specified Ethereum address.

Get Token Balances By Address

Tool to get token balances for wallet addresses across multiple networks using Alchemy's Portfolio API.

Get Token Metadata

Retrieves Ethereum mainnet ERC-20 token metadata, including available name, symbol, decimals, and logo URL, for display and token amount conversion.

Get Token Prices By Address

Retrieves current token prices by contract address and network from decentralized exchanges (DEXes).

Get Tokens By Address

Tool to fetch fungible tokens (native, ERC-20, SPL) for multiple wallet addresses across networks.

Get Transaction Count

Retrieves an Ethereum mainnet address's transaction count (nonce) at a specified block tag or hexadecimal block number using eth_getTransactionCount.

Get Transactions History By Address

Retrieves transaction history for one wallet address across up to two networks using Alchemy's Data API.

Invalidate NFT Contract Cache

Tool to invalidate the cached metadata for an NFT contract.

Check If NFT Is Airdrop

Tool to check if a specific NFT token is marked as an airdrop.

Check If NFT Is Airdrop

Check whether a specified NFT is marked as an airdrop using its contract address and token ID on Ethereum mainnet.

Check Collection Ownership

Tool to check if a wallet address owns any token from a specific NFT collection.

Check NFT Holder Status

Tool to check if a wallet address holds any NFTs from a specific contract.

Check if Contract is Spam

Tool to check if an NFT contract is marked as spam by Alchemy.

Check if Contract is Spam (V3)

Tool to determine if a specific NFT contract is marked as spam by Alchemy.

Search NFT Contract Metadata

Search Ethereum mainnet NFT contract metadata by keywords to find collections.

Summarize NFT Attributes

Retrieves a summary of NFT attributes for an Ethereum mainnet collection, including trait value counts.

FAQ

Frequently asked questions

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

Yes, you can. Hermes 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 Alchemy tools.

Yes, absolutely. You can configure which Alchemy 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 Alchemy data and credentials are handled as safely as possible.

Start with Alchemy.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Alchemy tool your agent needs.Free to start.

Start building