Skip the subscription and pay per call instead, with x402 (USDC on Base) or MPP (Tempo).

curl https://api.onesource.io/standard/v1/policy/current

A plain call like this comes back 402 Payment Required. The response tells your client how to pay.

Add the OneSource MCP server to your agent, then ask for Standard Reserve policy, auctions, branches, exits, and vaults in plain language. Paste your API key where it says sk_..., or set a wallet key instead to pay per call.

claude mcp add onesource -e ONESOURCE_API_KEY=sk_... -- npx -y @one-source/mcp@latest