Give an AI agent a Solana spending allowance instead of your key. Chain-enforced cap, x402.
Connect Runs on your machine
claude mcp add onchain-agent-wallets -e OWNER_SECRET_KEY=<OWNER_SECRET_KEY> -e OAW_NETWORK=<OAW_NETWORK> -e SOLANA_RPC_URL=<SOLANA_RPC_URL> -e OAW_STATE_DIR=<OAW_STATE_DIR> -e REQUIRE_CONFIRM=<REQUIRE_CONFIRM> -- npx -y @three-ws/[email protected]{
"mcpServers": {
"onchain-agent-wallets": {
"command": "npx",
"args": [
"-y",
"@three-ws/[email protected]"
],
"env": {
"OWNER_SECRET_KEY": "<OWNER_SECRET_KEY>",
"OAW_NETWORK": "<OAW_NETWORK>",
"SOLANA_RPC_URL": "<SOLANA_RPC_URL>",
"OAW_STATE_DIR": "<OAW_STATE_DIR>",
"REQUIRE_CONFIRM": "<REQUIRE_CONFIRM>"
}
}
}
}{
"mcpServers": {
"onchain-agent-wallets": {
"command": "npx",
"args": [
"-y",
"@three-ws/[email protected]"
],
"env": {
"OWNER_SECRET_KEY": "<OWNER_SECRET_KEY>",
"OAW_NETWORK": "<OAW_NETWORK>",
"SOLANA_RPC_URL": "<SOLANA_RPC_URL>",
"OAW_STATE_DIR": "<OAW_STATE_DIR>",
"REQUIRE_CONFIRM": "<REQUIRE_CONFIRM>"
}
}
}
}{
"servers": {
"onchain-agent-wallets": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@three-ws/[email protected]"
],
"env": {
"OWNER_SECRET_KEY": "<OWNER_SECRET_KEY>",
"OAW_NETWORK": "<OAW_NETWORK>",
"SOLANA_RPC_URL": "<SOLANA_RPC_URL>",
"OAW_STATE_DIR": "<OAW_STATE_DIR>",
"REQUIRE_CONFIRM": "<REQUIRE_CONFIRM>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
OWNER_SECRET_KEYOptional, secret | Owner secret key, base58 or a JSON byte array. Optional: without it every owner action is returned as an unsigned transaction for Phantom, Solflare, Backpack, or a Ledger to sign. |
OAW_NETWORKOptional | Cluster: mainnet or devnet. Defaults to mainnet. State is kept per network, so a devnet rehearsal never touches mainnet agents. |
SOLANA_RPC_URLOptional | HTTPS Solana RPC endpoint. Defaults to the public endpoint for the configured network; bring your own (Helius / Quicknode / Triton) for production. |
OAW_STATE_DIROptional | Where agent keypairs, guardrails, and the spend ledger are stored. Defaults to ~/.onchain-agent-wallets, written 0600 inside a 0700 directory. |
REQUIRE_CONFIRMOptional | Refuse to broadcast anything that moves value until the call is re-issued with confirm:true. Default true. |
Details
| Package | @three-ws/[email protected] (NPM, stdio) |
| First published | 10 Oct 2026 |
| Last updated | 10 Oct 2026 |
| Registry name | io.github.nirholas/onchain-agent-wallets |
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