MCP server

presign-guard

hf/x402Fizzl/presign-guard

Checked 26 Oct 2026, 08:30 UTC · Hugging Face reports it running

Safety checks before an AI agent pays, signs or buys (MCP)

Working at last check

https://x402fizzl-presign-guard.hf.space/gradio_api/mcp/

At a glance

Type: MCP server
Publisher: Not verified
Status: Working at last check
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:30 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http presign-guard https://x402fizzl-presign-guard.hf.space/gradio_api/mcp/

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.presign-guard]
url = "https://x402fizzl-presign-guard.hf.space/gradio_api/mcp/"

Gemini CLI

{"mcpServers":{"presign-guard":{"httpUrl":"https://x402fizzl-presign-guard.hf.space/gradio_api/mcp/"}}}

Cursor

{"mcpServers":{"presign-guard":{"url":"https://x402fizzl-presign-guard.hf.space/gradio_api/mcp/"}}}

VS Code

{"servers":{"presign-guard":{"type":"http","url":"https://x402fizzl-presign-guard.hf.space/gradio_api/mcp/"}}}

Antigravity

agy mcp add presign-guard https://x402fizzl-presign-guard.hf.space/gradio_api/mcp/

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"presign-guard","server_url":"https://x402fizzl-presign-guard.hf.space/gradio_api/mcp/","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"presign-guard","server_url":"https://x402fizzl-presign-guard.hf.space/gradio_api/mcp/"}

presign-guard
Safe to sign? EVM/Solana/XRPL/Algorand/Stellar txs, permits, tokens; OFAC screen: green/orange/red
Anyway Possible Agent Utilities
A free tool recommender plus eight x402 tools for payments, merchants, wallets, and web evidence.
Steve Guard
Solana + Robinhood-Chain token safety & net-USD accumulation intel for trading agents.
Guard Brasil
Detecta e mascara dado pessoal brasileiro (CPF, CNPJ, RG, e-mail) antes do texto ir a uma IA. LGPD.
SPACEXPLORATION
Search commercial real estate listings. Reads need no token; authoring is self-serve OAuth (DCR).
Privi Quantum Ledger
Quantum-sealed audit logs for AI agents (ML-DSA-87, SHA3-512), plus Privi Guard and trust passports.
Onyx
Ed25519-signed ground-truth oracle — 63 paid x402 tools live on Base mainnet.
Citiview Agent Market
186 pay-per-call tools: search, LLMs, UK KYB, FRED, Census, maps, crypto. x402 USDC.

[![AptLynx](https://aptlynx.net/badge/hf/x402Fizzl/presign-guard.svg)](https://aptlynx.net/servers/hf/x402Fizzl/presign-guard)

Listing text is written by the maker; AptLynx lists tools and does not vouch for them. Find another tool · Browse by topic · For agents