MCP Servers
402signalhq/402signal
Pre-flight check and signed evidence for agent payments (x402 and MPP): confirm the endpoint is live and the price and recipient match before your agent pays.
Our verdict
We have not reviewed 402signalhq/402signal yet
No one at Enterprise DNA has checked this listing against its sources. The description comes from public listings gathered automatically. Any fact below shows where it came from and when it was last checked.
From the listing
About 402signalhq/402signal
Pre-flight check for agent payments using x402 and MPP. It verifies that the payment endpoint is live and that the price and recipient match expectations before an agent authorizes payment. It produces signed evidence of the check.
Best for
Developers building agents that pay via x402 or MPP and need pre-payment verification.
Use cases
- Verify endpoint liveness before agent payment
- Confirm price and recipient match before paying
- Generate signed evidence for payment audits
Notes
1 stars on GitHub. Last updated 2026-09-15. Licensed MIT.
Pros
- Focused on a specific payment pre-flight need
- Open source and simple to inspect
- Provides signed evidence for accountability
Cons
- Very early stage with minimal adoption (1 star)
- Python only, no other language bindings
- Limited documentation or community support
Key facts
What we have checked
Not checked yet. Dated facts such as prices, releases and repository activity appear here once we have confirmed them from a source.
How to use
How to set it up
As the listing publishes it. We have not run this install.
Install
npm install @402signal/route-guard@0.7.6 && npm audit signaturesInstall
Add 402signalhq/402signal to your client
No install recipe yet. We write one for Claude Code, Claude Desktop, Cursor, VS Code, Codex and ChatGPT when the server is in the official MCP registry with a package or remote address we can use.
Until then, follow the project's own README, or the setup the listing publishes under How to set it up.
Works with
What 402signalhq/402signal connects to
No confirmed connections yet. A product appears here when the server's registry name, repo, homepage or name ties it to that product, and a client appears when we have an install recipe for it.
Sources
Where this comes from
No sources recorded yet. Each source we check is listed here with the date we checked it.
A source shows what was published when we checked it. It does not certify security, performance or a working installation. Read our method.
Changelog
What changed
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Pairs with
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