# x402Shield (x402shield.dev)

Checks each agent x402 payment against delegated authority, budget, policy and replay before a signing key is used.

- Atlas card: https://inite.ai/en/atlas/x402shield.dev
- Site: https://x402shield.dev
- For: Agent operators who let autonomous AI agents make x402 payments and need authorization checks.
- Categories: finance
- Use 0/100 · alive 100/100

## Used for

- Check agent payments against delegated spending limits
- Park large agent payments for human approval
- Record why each agent payment was authorized

## Price

Not read yet.

## For developers

- API docs: https://x402shield.dev/developers
- MCP server: dev.x402shield/x402shield (namespace; open on 2026-10-27, 5 tools)
- Read 2026-10-27

## MCP server, measured daily

Server: https://x402shield.dev/api/mcp, checked every day since 2026-10-27 (6 checks).

- Answered: measuring, 6 daily checks so far
- Median first answer: 366 ms
- Sign-in: none
- Context its tool definitions take: about 747 tokens (5 tools)
- Tool definitions: B, 83/100
- Failing "annotations": 5 of 5 tools
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Read 2026-10-27

---

Source: INITE Atlas, https://inite.ai/en/atlas/x402shield.dev. JSON: https://inite.ai/api/atlas/x402shield.dev. MCP: https://inite.ai/api/mcp (atlas_lookup).