How to connect the Alchemy MCP server
To connect the official Alchemy MCP server, add https://mcp.alchemy.com/mcp to your MCP client as a Streamable HTTP server, then sign in with OAuth when your client prompts you. Alchemy documents setup for Claude Code, Codex, Cursor, Claude and VS Code.
Docs reviewed 5 Nov 2026Not a tested connection.
Endpoint https://mcp.alchemy.com/mcp · Registry com.alchemy/mcp 0.9.5
Add Alchemy MCP to your client
claude mcp add --transport http alchemy https://mcp.alchemy.com/mcp
Connect Alchemy MCP step by step
Before you start
- An Alchemy account. You sign in with it when the client starts the OAuth flow. alchemy.com/docs
- RPC and data tools need an Alchemy app. Run the select_app tool first to choose which app the server uses. alchemy.com/docs
Authentication
- Your client → Alchemy MCP
- OAuth sign-in, handled by your MCP client. alchemy.com/docsmodelcontextprotocol.io/specification
- Alchemy MCP → Alchemy API
- The server acts on your account with the access you approve. alchemy.com/docs
Steps
- Open Alchemy's MCP server setup instructions for your client
- Add the Alchemy MCP server to your client
Add https://mcp.alchemy.com/mcp as a remote MCP server that uses the Streamable HTTP transport (VS Code labels it "http"). No API key or local install is needed.
- Sign in with your Alchemy account when the client prompts you
- Choose the Alchemy app for RPC and data tools
Before you use RPC or data tools, run the select_app tool. The server caches that app's API key and uses it for those calls. Admin tools that manage your account and apps don't need this step.
- List the server's tools
Your client should list the server's tools. That confirms the connection, not every API permission.
What we observed
- 5 Nov 2026: HTTP 401 with WWW-Authenticate resource_metadata https://mcp.alchemy.com/.well-known/oauth-protected-resource, which names the authorization server https://auth.alchemy.com.
Alchemy MCP questions
What is the Alchemy MCP server URL?
The official Alchemy MCP server is at https://mcp.alchemy.com/mcp and uses the Streamable HTTP transport.
How do I authenticate with the Alchemy MCP server?
Sign in with OAuth when your client prompts you.
Which AI clients can use the Alchemy MCP server?
Alchemy's documentation covers Claude Code, Codex, Cursor, Claude and VS Code. Other clients that support remote Streamable HTTP MCP servers may also work.
What do I need before connecting Alchemy MCP?
An Alchemy account. You sign in with it when the client starts the OAuth flow. RPC and data tools need an Alchemy app. Run the select_app tool first to choose which app the server uses.
Has this Alchemy MCP guide been tested?
Alchemy's documentation was reviewed on 2026-11-05. It is not a tested connection; your account and permissions decide which tools work.
Sources and review
Alchemy's documentation was checked on the dates shown. This guide follows the MCP Connect connection-guide draft, bound to the exact Registry record it describes. It is not a tested connection: your account and permissions decide which tools work.
Guide source and binding
MCP connection guide (draft 0.1) for com.alchemy/mcp 0.9.5, bound to /remotes/0 of the Registry record by SHA-256 f51bcc5ca15a….
- www.alchemy.com/docs/alchemy-mcp-server · checked 5 Nov 2026
- registry.modelcontextprotocol.io/v0.1/servers/com.alchemy%2Fmcp/versions/0.9.5 · checked 5 Nov 2026
- modelcontextprotocol.io/specification/2026-07-28/basic/authorization · checked 5 Nov 2026