Alchemy · Codex
Add the Alchemy MCP server to Codex
Blockchain data across 100+ chains: JSON-RPC calls, token and NFT data, prices, transfers, simulation, traces, smart wallets and Solana.
1. Add the server
Run in your terminal
codex mcp add alchemy --url https://mcp.alchemy.com/mcp
Scopes, env vars, OAuth and limits: Codex MCP config guide
2. Sign in
Run codex mcp login <name> to complete OAuth for a remote server. Alchemy is hosted by Alchemy, so there is nothing to install or keep updated.
3. Try it
Ask Codex for something Alchemy can do. Blockchain data across 100+ chains: JSON-RPC calls, token and NFT data, prices, transfers, simulation, traces, smart wallets and Solana. Approve the first tool call and check the result before allowing write actions automatically.
- · Each server is a [mcp_servers.<name>] table in config.toml.
- · Use enabled_tools or disabled_tools to keep the tool list short.
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FAQ
- How do I add the Alchemy MCP server to Codex?
- Run: codex mcp add alchemy --url https://mcp.alchemy.com/mcp. Run codex mcp login <name> to complete OAuth for a remote server.
- Is this the official Alchemy MCP server?
- Yes. It is published by Alchemy as com.alchemy/mcp in the official MCP registry.
- Does the Alchemy MCP server need an API key?
- It is a hosted server. Most hosted servers sign you in with OAuth the first time Codex uses them; check Alchemy's docs for any plan or permission requirements.
Links
Alchemy in other clients
More databases for Codex
Work at Alchemy?
Feature Alchemy across the directory and its category from $49/month.
Reviewed Oct 19, 2026. Command generated from the registry record and checked against Codex's documented syntax.