Give an AI agent a Solana spending allowance instead of your key. Chain-enforced cap, x402.
To add Onchain Agent Wallets to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation. It needs 5 environment variables, listed below.
Install
npx -y @three-ws/onchain-agent-wallets@0.1.1Environment variables
OWNER_SECRET_KEYSet in your MCP configOAW_NETWORKSet in your MCP configSOLANA_RPC_URLSet in your MCP configOAW_STATE_DIRSet in your MCP configREQUIRE_CONFIRMSet in your MCP configInstall with your client
claude mcp add onchain-agent-wallets --env OWNER_SECRET_KEY=<YOUR_OWNER_SECRET_KEY> --env OAW_NETWORK=<YOUR_OAW_NETWORK> --env SOLANA_RPC_URL=<YOUR_SOLANA_RPC_URL> --env OAW_STATE_DIR=<YOUR_OAW_STATE_DIR> --env REQUIRE_CONFIRM=<YOUR_REQUIRE_CONFIRM> -- npx -y @three-ws/onchain-agent-wallets@0.1.1
Run this in a terminal to add the server to Claude Code.
What this does
Onchain Agent Wallets exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.
Requirements
This server needs the following environment variables to be set before it can run:
OWNER_SECRET_KEY OAW_NETWORK SOLANA_RPC_URL OAW_STATE_DIR REQUIRE_CONFIRM
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install Onchain Agent Wallets?
Run the Claude Code command in the install section to add Onchain Agent Wallets to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.
Which clients work with Onchain Agent Wallets?
This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to Onchain Agent Wallets as well.
Does Onchain Agent Wallets need an API key?
Yes. Before it can run, set these environment variables: OWNER_SECRET_KEY, OAW_NETWORK, SOLANA_RPC_URL, OAW_STATE_DIR, REQUIRE_CONFIRM. They go in the env block of your MCP config.
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