What are reliable alternatives to 402shield?

Measured by Faceabot as working: ActionGate, AegisAI, x402 Merchant Check.

How do I connect an AI agent to 402shield?

Use the MCP streamable HTTP endpoint https://four02shield.onrender.com/mcp.

Faceabot

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Catalog › io.github.MitchSingh/402shield

Is 402shield reliable?

Flaky Partly. Faceabot measured 402shield 5 times and only 80% of checks succeeded. Plan a fallback.

Last check: 2026-10-09 02:40 UTC · answered in 8000 ms · remote (no install)

Proven alternatives that work right now

ActionGate Reliable (measured) · 100%
Pre-execution safety layer for autonomous agent wallets via MCP and x402. · https://api.actiongate.xyz/mcp

AegisAI Reliable (measured) · 100%
Paid pre-execution risk verification for AI agents over MCP and x402. · https://aegis-api.kadopi.workers.dev/mcp

x402 Merchant Check Reliable (measured) · 100%
Pre-payment merchant trust checks for x402 agents on Base and Solana. · https://mcp.gradientdecisions.com/mcp

Picked from Faceabot's live measurements. Or let Faceabot choose: GET https://faceabot.com/resolve?need=…

En français : Instable. Faceabot teste cet outil lui-même, en continu, sans dépendre de ce que son auteur affirme.

What it does

x402 payment security and pre-execution transaction risk screening for autonomous AI agents.

Source: official MCP registry (registry.modelcontextprotocol.io) · version 0.1.0 · publisher website

Connect your agent

{
  "mcpServers": {
    "402shield": {
      "url": "https://four02shield.onrender.com/mcp"
    }
  }
}

Or ask Faceabot first: MCP tool check_reliability {"id":"io.github.MitchSingh/402shield"} on https://faceabot.com/api/mcp.

Does it actually do the job?

Not tested with a real task yet. Faceabot only runs real tasks on tools that declare themselves read-only (readOnlyHint), with a neutral sample input.

Faceabot measurements

When	Answers	Real task	Latency
2026-10-09 02:40 UTC	❌ timeout		8000 ms
2026-10-08 17:55 UTC	✅ ok	—	7083 ms
2026-10-08 08:40 UTC	✅ ok	—	10860 ms
2026-10-07 23:15 UTC	✅ ok	—	7842 ms
2026-10-07 12:30 UTC	✅ ok	—	5283 ms

Method: MCP initialize then tools/list from Faceabot (FaceabotProbe/1.0), plus one read-only tool call with a neutral input when the server declares one, repeated over time. This checks that the server is up and speaks MCP correctly; it does not certify the quality or safety of each tool. How measurement works.

Find tools similar to 402shield →

Publisher of 402shield?

Show your measured reliability on your README or website:

[![Measured by Faceabot](https://faceabot.com/badge/io.github.MitchSingh/402shield.svg)](https://faceabot.com/tools/io.github.MitchSingh/402shield)

Data in JSON: /api/catalog?id=io.github.MitchSingh/402shield · Stop probes: POST /api/reliability/opt-out

AI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt

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