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Falcon Shield MCP Server

answering

Falcon Shield is answering right now. Last checked 3 min ago. It exposes 1 tools.

Pre-sign Solana tx guard for agents: ALLOW/WARN/BLOCK verdict, x402 USDC pay-per-call.

Uptime history 34 hours of history
34 hours agonow
100.0%
Uptime 24h
92 of 92 checks
1
Tools
read from the server
93 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check Falcon Shield every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.

run in your terminal
claude mcp add falcon-shield --transport http https://falcon-shield.falcon-sol.workers.dev/mcp
Settings → Connectors → Add custom connector, then paste this address
https://falcon-shield.falcon-sol.workers.dev/mcp
~/.codex/config.toml
[mcp_servers.falcon-shield]
url = "https://falcon-shield.falcon-sol.workers.dev/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "falcon-shield": {
      "url": "https://falcon-shield.falcon-sol.workers.dev/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "falcon-shield": {
      "type": "http",
      "url": "https://falcon-shield.falcon-sol.workers.dev/mcp"
    }
  }
}

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

shield
shield_guard_check
Use this before an agent or wallet signs a Solana transaction. Decodes the unsigned or signed transaction and returns NO_MATCH (no known-bad pattern matched; not a safety guarantee), WARN, or BLOCK, with plain-language reasons and a signed receipt. Pass an x402 quote to also check a payment transaction against it (overpay, approve-instead-of-transfer, unchecked Transfer, wrong payee). Errors return ERROR and are never charged. Price $0.009 USDC (x402, Solana).

Endpoints

URLTransportStateLatencyChecked
https://falcon-shield.falcon-sol.workers.dev/mcp streamable-http answering 89 ms 3 min ago

Alternatives to Falcon Shield

same job, measured the same way
falcon.sol agents
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Solana agent tools, x402 USDC pay-per-call (Cloudflare host).

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M
Mintverdict
by mintverdict

Solana token risk verdicts, rug checks & outcome labels for AI agents. Pay-per-call x402 USDC.

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CYRE Guardian
by milesdev888

Solana address risk grades and token scans for AI agents. Pay-per-call via x402 (USDC on Base).

3 tools answering
Toolbooth
by toolbooth

Pay-per-call tools for AI agents: Solana, DEX, perps, prediction markets, DeFi, web. USDC via x402.

71 tools answering
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ThirdMade Shelf
by thirdmade

26 pay-per-call tools for agents: scrape, verify, guards, crypto. x402 USDC on Base.

26 tools answering
Agenticpay
by krystiangw

x402 USDC paywall bridge for MCP — pay per tool call on Solana.

242 installs/wk local only
AgentScrape
by hshintelligence

Pay-per-call web scraping for AI agents via x402 on Base USDC. Six tools, no signup.

6 tools answering
Token Verdict
by quincygb

MCP server for Token Verdict — pay-per-call token risk verdicts over x402 ($0.02 USDC on Base)

983 installs/wk local only

Falcon Shield — questions

Answers built from our own checks of this server.

What can Falcon Shield do?
It exposes 1 tools, read directly from the server on our last check. Among them: shield_guard_check. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Falcon Shield working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 93 ms. The bar chart above shows every period we have measured.
How do I connect Falcon Shield?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Falcon Shield need an API key?
No. Falcon Shield completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Falcon Shield?
It answers our handshake in 93 ms on average, which is faster than 93% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.