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Voulti MCP server

by csacanam·io.github.csacanam/voulti·v0.1.0
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Accept crypto payments from AI agents: invoices + hosted checkout on 5 chains. No API key.

A92/100grade A
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Safety scan
A92/100

full report

Adoption
Growing

0 stars29 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

Voulti tools (3, 1 write)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • create_invoicewrite action

    Create a payment invoice and get a hosted checkout link to send to the payer. amount_fiat is in the MERCHANT's base currency (USD, EUR, COP, ARS, BRL or MXN — confirm which one before charging; the response's fiat_currency tells you). Invoices expire in 1 hour by default; pass expires_at (ISO 8601) for slow payers. Use reference to tag the invoice with your own order id or client name.

  • get_invoice

    Check an invoice's payment status. status: Pending → Paid | Expired. On Paid it includes paid_tx_hash (on-chain proof), payment_method and paid_at. Poll every few seconds while the payer is at checkout. Verify Paid here before releasing goods — even if you also receive a webhook.

  • get_payment_link

    Get the merchant's PERMANENT payment page link, where the payer types the amount themselves. Never expires. Good for tips, donations or 'pay what you owe' — for fixed amounts prefer create_invoice.

Public scan report

scanner v0.1.9 · 2026-09-26 · same rubric, same numbers if you re-run it

no findings
  • Code scan2 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 9 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
Overall 92/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Voulti compares

Against every graded Finance MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
92/100
higher than 95% of 1,761 Finance servers
Tools
3
the typical Finance server has 8
Tools that change things
33%
typical: 0%. Fewer write tools means less an agent can break
Downloads a week
29
more than 18% of 421 Finance servers with a package

What its tools let an agent do: 2 read · 1 create

Install Voulti in Claude Code, Cursor or VS Code

Runs npx -y voulti-mcp on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add voulti -- npx -y voulti-mcp
Add to Cursor

What the publisher says

From the Voulti repository's README, as published. We do not edit it. Read it on GitHub

Crypto payment gateway for merchants. Accept USDC, USDT and stablecoins on 5 networks.

Architecture

apps/
  checkout/     React + Vite — customer payment page
  merchant/     Next.js — merchant dashboard
  api/          Fastify — backend API

contracts/
  core/         DerampProxy + modules (Hardhat, Solidity ^0.8.28)

packages/
  shared/       Shared utilities

assets/
  brand/        The logo, and the icons every app is derived from

Networks

For AI agents

Voulti is agent-usable end to end — the integration API needs no API key:

  • MCP server: claude mcp add voulti -- npx -y voulti-mcp — tools createinvoice, getinvoice, getpaymentlink. See mcp/README.md.
  • Agent skill: npx skills add csacanam/voulti — or read it at voulti.com/skill.md.
  • Plain HTTP: POST https://api.voulti.com/invoices with { commerceid, amountfiat, reference? } → hosted checkout link. LLM index: voulti.com/llms.txt.

Features

  • Self-service registration — merchant connects wallet, names business, done
  • Two payment methods — Connect Wallet or Pay by Address (QR + deposit)
  • Multi-chain balances — aggregated by token, network auto-selected
  • Send funds — withdraw to any wallet from dashboard
  • HD wallet sweep — automatic deposit detection and settlement
  • Partial/over payment handling — auto-refund on overpay, wait on partial
  • i18n — Spanish and English

Smart Contracts

Modular proxy architecture deployed on 5 networks:

  • DerampProxy — entry point, routes calls to modules
  • DerampStorage — centralized data store
  • AccessManager — roles, token/commerce whitelisting
  • InvoiceManager — invoice lifecycle
  • PaymentProcessor — payment execution, fee calculation
  • TreasuryManager — service fee collection
  • WithdrawalManager — commerce fund withdrawals

See contracts/core/deployed-addresses/PRODUCTION.md for all addresses.

Operator Wallet

0x21581Cb82D9a66126fBe7639f4AF55DdfEA48E26 — deploys contracts, whitelists commerces, sends gas for HD wallet sweeps.

Local Development

# Prerequisites: Node 18+, pnpm
pnpm install
cd contracts/core && npm install

# Start Hardhat node (terminal 1)
npx hardhat node

# Deploy + setup (terminal 2)
cd contracts/core
npx hardhat run scripts/setup-local.ts --network localhost

# Start API (terminal 3)
pnpm dev:api

# Start checkout (terminal 4)
pnpm dev:checkout

# Start merchant dashboard (terminal 5)
pnpm dev:merchant

API Endpoints

Cron Jobs

Configure these as scheduled jobs in DigitalOcean (or any scheduler):

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Voulti: common questions

Is Voulti MCP server safe?
Yes, by our scan: it is graded A (92/100). Read the Voulti safety report
How do I install Voulti?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Voulti need an API key?
No secret keys are declared. It reads 1 setting from the environment.
Is Voulti maintained?
The last commit was 48 days ago (2026-09-16). The latest release is v0.1.0.
What can I use instead of Voulti?
Servers from other publishers that do the same job: Yolfi Payments MCP server, Sato Hub: Build Onchain & Crypto Agents MCP server and PayRam MCP server.
How does Voulti compare with other Finance MCP servers?
safety score 92/100 (higher than 95% of 1,761 Finance servers); tools 3 (the typical Finance server has 8); tools that change things 33% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to Voulti

Same job from other publishers: the closest match first, then the best rated.

  • Yolfi Payments MCP
    Let AI agents add Yolfi crypto checkout, paylinks, webhooks, and status checks.
    A
  • Sato Hub: Build Onchain & Crypto Agents
    Build any crypto agent: x402, ERC-8004, wallets. Does a server take your key? Hosted? Maintained?
    B
  • PayRam
    Install, configure, operate and integrate self-hosted PayRam crypto payment gateways.
    B
  • three.ws Agent Payments
    Governed x402 payment sessions: pay any endpoint with budget, allowlist & per-tx caps, no key.
    More from nirholas →
    B
  • X402 List
    Find and vet x402 payment APIs before your agent pays one: uptime, price, on-chain volume.
    A

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