PipRail

claude mcp add piprail -e 'PIPRAIL_PRIVATE_KEY=<your piprail_private_key>' -e 'PIPRAIL_CHAIN=<PIPRAIL_CHAIN>' -e 'PIPRAIL_CHAINS=<PIPRAIL_CHAINS>' -e 'PIPRAIL_MAX_AMOUNT=<PIPRAIL_MAX_AMOUNT>' -e 'PIPRAIL_MAX_TOTAL=<PIPRAIL_MAX_TOTAL>' -e 'PIPRAIL_MAX_TOTAL_DENOM=<PIPRAIL_MAX_TOTAL_DENOM>' -e 'PIPRAIL_MAX_PAYMENTS=<PIPRAIL_MAX_PAYMENTS>' -e 'PIPRAIL_MAX_PAYMENTS_PER_WINDOW=<PIPRAIL_MAX_PAYMENTS_PER_WINDOW>' -e 'PIPRAIL_WARN_AT_FRACTION=<PIPRAIL_WARN_AT_FRACTION>' -e 'PIPRAIL_SPEND_LOG=<PIPRAIL_SPEND_LOG>' -e 'PIPRAIL_EVENT_LOG=<PIPRAIL_EVENT_LOG>' -e 'PIPRAIL_TOKENS=<PIPRAIL_TOKENS>' -e 'PIPRAIL_SCHEMES=<PIPRAIL_SCHEMES>' -- npx -y @piprail/mcp@0.10.0

{
    "mcpServers": {
        "piprail": {
            "command": "npx",
            "args": [
                "-y",
                "@piprail/mcp@0.10.0"
            ],
            "env": {
                "PIPRAIL_PRIVATE_KEY": "<your piprail_private_key>",
                "PIPRAIL_CHAIN": "<PIPRAIL_CHAIN>",
                "PIPRAIL_CHAINS": "<PIPRAIL_CHAINS>",
                "PIPRAIL_MAX_AMOUNT": "<PIPRAIL_MAX_AMOUNT>",
                "PIPRAIL_MAX_TOTAL": "<PIPRAIL_MAX_TOTAL>",
                "PIPRAIL_MAX_TOTAL_DENOM": "<PIPRAIL_MAX_TOTAL_DENOM>",
                "PIPRAIL_MAX_PAYMENTS": "<PIPRAIL_MAX_PAYMENTS>",
                "PIPRAIL_MAX_PAYMENTS_PER_WINDOW": "<PIPRAIL_MAX_PAYMENTS_PER_WINDOW>",
                "PIPRAIL_WARN_AT_FRACTION": "<PIPRAIL_WARN_AT_FRACTION>",
                "PIPRAIL_SPEND_LOG": "<PIPRAIL_SPEND_LOG>",
                "PIPRAIL_EVENT_LOG": "<PIPRAIL_EVENT_LOG>",
                "PIPRAIL_TOKENS": "<PIPRAIL_TOKENS>",
                "PIPRAIL_SCHEMES": "<PIPRAIL_SCHEMES>"
            }
        }
    }
}

متغيرات البيئة

• PIPRAIL_PRIVATE_KEY سري Your wallet's private key/seed for the chosen chain. Optional: omit it to run read-only (discover/quote/register/budget/guide); set it to let the agent pay. Stays on your machine; the spend policy caps every payment.
• PIPRAIL_CHAIN Chain to pay on (default: base).
• PIPRAIL_CHAINS Pay across several chains (instead of PIPRAIL_CHAIN): a comma-separated list, e.g. base,polygon,solana. Give each its own PIPRAIL_<CHAIN>_KEY (+ optional PIPRAIL_<CHAIN>_RPC_URL). The agent pays whichever chain a 402 asks for — the first listed that can settle — under one shared budget.
• PIPRAIL_MAX_AMOUNT Max spend per single payment, in token units (default: 0.10).
• PIPRAIL_MAX_TOTAL Lifetime spend cap per token, in token units (default: 10.00).
• PIPRAIL_MAX_TOTAL_DENOM Cross-token GRAND TOTAL: one spend cap per denomination across every stablecoin and chain, e.g. USD:20.00,EUR:5.00. Not a price oracle — sums tokens of the same unit, each counted 1:1. Native coins are excluded.
• PIPRAIL_MAX_PAYMENTS Lifetime cap on the NUMBER of payments, across every chain + token (e.g. 100).
• PIPRAIL_MAX_PAYMENTS_PER_WINDOW Cap on the number of payments within PIPRAIL_WINDOW_SECONDS (a rolling rate limit; set PIPRAIL_WINDOW_SECONDS too).
• PIPRAIL_WARN_AT_FRACTION Emit an early-warning event when spend crosses this fraction of any cap, e.g. 0.8 (80%). Needs PIPRAIL_EVENT_LOG to be visible.
• PIPRAIL_SPEND_LOG Path to a local append-only spend log. When set, the budget (lifetime, grand total, counts) SURVIVES a restart — hydrated from this file. No backend; you own the file.
• PIPRAIL_EVENT_LOG Mirror payment events (settled / declined / budget-threshold) as one-line JSON to 'stderr' or a file path — the operator's notification stream. Default: off.
• PIPRAIL_TOKENS Comma-separated allowed token symbols, plus the alias 'native' for the chain's coin (default: USDC).
• PIPRAIL_SCHEMES Comma-separated payment schemes to settle (default: onchain-proof). Add 'exact' (onchain-proof,exact) to also pay standard x402 servers GASLESS on EVM + Solana (method auto-selected). Add 'upto' to also pay metered x402 servers on EVM (Permit2): sign a MAX, the server settles the actual <= max.