PayGuard

co.youraitoolsPublished by youraitools.coOfficial publisherv0.1.0Updated Oct 26, 2026

OFAC SDN sanctions screen for crypto addresses, for agents that send payments. By Crypto Money Maker

The publisher's own server: DomainCheck

VerifiedStreamable HTTPWeb executableFinance Security & Monitoring

Server details

Identifier: co.youraitools/payguard
Transport: Streamable HTTP
Runtime: Web executable
Trust: Verified
Published: Oct 22, 2026

Security note

MCP servers receive tool arguments from a conversation and may perform external actions. Review what a server can do before you enable it, and give it only the access it needs.

The registry verified that this server's namespace belongs to youraitools.co, which also runs its endpoint. That identifies the publisher; it does not make the server's tools safe.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

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Overview

AI-generated overview

Remote MCP server that lets an assistant check crypto addresses against the US Treasury OFAC SDN sanctions list before sending payments.

What you can do: Screen a single crypto address against the OFAC SDN list of sanctioned digital currency addresses
Screen 1-50 addresses in one batch call, including mixed chains, for payee lists, counterparties or transaction inputs and outputs
Coverage spans many chains such as BTC, ETH and EVM chains, TRX, SOL, LTC, XMR, BCH, XRP and ZEC
The list is described as refreshed daily
When to use it: Useful when an assistant prepares or reviews crypto payments and should confirm that a recipient or counterparty address is not on the OFAC sanctions list, especially when checking several addresses at once.
Requirements: A remote streamable HTTP endpoint; no packages, environment variables or headers are declared. The manifest declares no authentication.

Before you install

Results reflect only the US Treasury OFAC SDN list as refreshed daily, so a clean result is not proof an address is safe or unsanctioned elsewhere. Addresses you submit are sent to a third-party service. The manifest declares no authentication, so consider what that means for who can call it and how usage is tracked.

Installation

In SourceWeft

Open PayGuard in the dashboard and add it to a workspace.
Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/co.youraitools%2Fpayguard/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "payguard": {
      "type": "http",
      "url": "https://api.youraitools.co/payguard/mcp"
    }
  }
}

Tools

screen_address

OFAC SDN screen of a crypto address

Checks one crypto address against the US Treasury OFAC SDN list of sanctioned digital currency addresses (refreshed daily). For 2 or more addresses use screen_batch (up to 50 per call, counts as one call). Accepts any chain (BTC, ETH and EVM chains, TRX, SOL, LTC, XMR, BCH, XRP, ZEC and more). Free: 30 calls/day per IP with full results (max 10/min; invalid input is not counted); after that the tool returns an error with the x402 pay URL ($0.001 USDC on Base, Polygon, Arbitrum One or Solana per call at https://api.youraitools.co/payguard/v1/address) or prepaid credits. Returns sanctioned (true/false), match_count, matches[] (entity, entity_type, programs, list_date, listed_currency), address (normalized), chain {guess, format, candidates, checksum_valid}, list_updated_at and free_tier usage. Read-only; informational screening, not legal advice.

Parametersaddressrequired

screen_batch

OFAC SDN screen of up to 50 crypto addresses

Checks 1-50 crypto addresses against the US Treasury OFAC SDN list in one call (counts as one call). Use it instead of repeated screen_address calls whenever you have several addresses (payee lists, counterparties, transaction inputs/outputs); use screen_address for a single one. Mixed chains allowed; one invalid entry rejects the whole call. Free: 30 calls/day per IP with full results (max 10/min; invalid input is not counted); after that the tool returns an error with the x402 pay URL ($0.01 USDC on Base, Polygon, Arbitrum One or Solana per call at https://api.youraitools.co/payguard/v1/batch) or prepaid credits. Returns count, sanctioned_count, any_sanctioned, list_updated_at and results[] in input order, each {input, address, sanctioned, match_count, matches[], chain}. Read-only; informational screening, not legal advice.

Parametersaddressesrequired

Version history

v0.1.0LatestOct 22, 2026

Score

83% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 daysRequired25 pts
Auth declaredRequired10 pts
Tools listedRequired15 pts
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
LicenseNot applicable
A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.