PipRail

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

• Connection: Runs on your computer
• Transport: stdio
• Category: Online shops & payments
• You need to fill in: PIPRAIL_PRIVATE_KEY

Install

Pick the AI app you use, then copy the settings.

You need

• npmNode.js installed (for the npx command)

Which app do you use?

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

claude mcp add piprail --env PIPRAIL_PRIVATE_KEY=your-value --env PIPRAIL_CHAIN=your-value --env PIPRAIL_CHAINS=your-value --env PIPRAIL_MAX_AMOUNT=your-value --env PIPRAIL_MAX_TOTAL=your-value --env PIPRAIL_MAX_TOTAL_DENOM=your-value --env PIPRAIL_MAX_PAYMENTS=your-value --env PIPRAIL_MAX_PAYMENTS_PER_WINDOW=your-value --env PIPRAIL_WARN_AT_FRACTION=your-value --env PIPRAIL_SPEND_LOG=your-value --env PIPRAIL_EVENT_LOG=your-value --env PIPRAIL_TOKENS=your-value --env PIPRAIL_SCHEMES=your-value -- npx -y @piprail/mcp

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

{
  "servers": {
    "piprail": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@piprail/mcp"
      ],
      "env": {
        "PIPRAIL_PRIVATE_KEY": "your-value",
        "PIPRAIL_CHAIN": "your-value",
        "PIPRAIL_CHAINS": "your-value",
        "PIPRAIL_MAX_AMOUNT": "your-value",
        "PIPRAIL_MAX_TOTAL": "your-value",
        "PIPRAIL_MAX_TOTAL_DENOM": "your-value",
        "PIPRAIL_MAX_PAYMENTS": "your-value",
        "PIPRAIL_MAX_PAYMENTS_PER_WINDOW": "your-value",
        "PIPRAIL_WARN_AT_FRACTION": "your-value",
        "PIPRAIL_SPEND_LOG": "your-value",
        "PIPRAIL_EVENT_LOG": "your-value",
        "PIPRAIL_TOKENS": "your-value",
        "PIPRAIL_SCHEMES": "your-value"
      }
    }
  }
}

Your choice stays on this device in a cookie; no account needed.

Values you fill in

• PIPRAIL_PRIVATE_KEY secret env
  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 ca…
• PIPRAIL_CHAIN env
  Chain to pay on (default: base).
• PIPRAIL_CHAINS env
  Pay across several chains (instead of PIPRAIL_CHAIN): a comma-separated list, e.g. base,polygon,solana. Give each its own PIPRAIL_ _KEY (+ optional PIPRAIL_ _RPC_URL). The agent pays whichever chain…
• PIPRAIL_MAX_AMOUNT env
  Max spend per single payment, in token units (default: 0.10).
• PIPRAIL_MAX_TOTAL env
  Lifetime spend cap per token, in token units (default: 10.00).
• PIPRAIL_MAX_TOTAL_DENOM env
  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 a…
• PIPRAIL_MAX_PAYMENTS env
  Lifetime cap on the NUMBER of payments, across every chain + token (e.g. 100).
• PIPRAIL_MAX_PAYMENTS_PER_WINDOW env
  Cap on the number of payments within PIPRAIL_WINDOW_SECONDS (a rolling rate limit; set PIPRAIL_WINDOW_SECONDS too).
• PIPRAIL_WARN_AT_FRACTION env
  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 env
  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 env
  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 env
  Comma-separated allowed token symbols, plus the alias 'native' for the chain's coin (default: USDC).
• PIPRAIL_SCHEMES env
  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 a…

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

• ✓ Pass

  Maker matches the repo

  The registry name was verified with the GitHub account piprail, which owns the repo

• … Not checked yet

  Still maintained

  We have not read this repo from GitHub yet

• … Not checked yet

  Has a licence

  We have not read this repo from GitHub yet

• – Not applicable

  Endpoint responds

  This one runs on your computer; there is no internet endpoint

• – Not applicable

  Sign-in with OAuth

  Runs on your computer and uses local settings instead

• … Not checked yet

  No hidden instructions in tool descriptions

  Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Online shops & paymentsi

• More stars than 0% of the other 1751 servers in this category
• Published to the registry more recently than 37% of the other 1751 servers in this category
• Basic checks equal to or better than 100% of the other 1751 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

README from the maker

npx -y @piprail/mcp        # speaks MCP over stdio

{ "mcpServers": { "piprail": {

"env": {