# Signed agents

AI agents that sign each request with a key the site can check, so the site knows who sent it. A site can let signed agents through a bot check that stops everyone else.

Also called signed bots.

Source: https://agentdrives.com/glossary/signed-agents · as data: https://agentdrives.com/glossary/signed-agents.json · licence CC BY 4.0

## In our drives

After each drive we open the product's sign-up page as a signed agent Cloudflare knows, next to our own drive, and show both on the product's page.

How to let signed agents through, per vendor: https://agentdrives.com/research/bot-checks?via=md

From the source: “A boolean value that indicates whether the request originated from a known agent that self-identifies with Web Bot Auth.” (Cloudflare docs, checked 3 Oct 2026: https://developers.cloudflare.com/bots/reference/bot-management-variables/index.md)

## Products whose sign-up page opened for a signed agent

132 of the 151 products we drove.

- [AgentMail](https://agentdrives.com/tools/agentmail.md?via=md): L4 Runs on its own
- [Anchor Browser](https://agentdrives.com/tools/anchorbrowser.md?via=md): L4 Runs on its own
- [Attio](https://agentdrives.com/tools/attio.md?via=md): L4 Runs on its own
- [BookStack](https://agentdrives.com/tools/bookstackapp.md?via=md): L4 Runs on its own
- [Browserless](https://agentdrives.com/tools/browserless.md?via=md): L4 Runs on its own
- [Buttondown](https://agentdrives.com/tools/buttondown.md?via=md): L4 Runs on its own
- [Cloudinary](https://agentdrives.com/tools/cloudinary.md?via=md): L4 Runs on its own
- [Craft](https://agentdrives.com/tools/craft.md?via=md): L4 Runs on its own

## Related terms

- [Web Bot Auth](https://agentdrives.com/glossary/web-bot-auth.md): The draft standard that signed agents use: each request carries a signature, and the agent publishes its keys in a directory at a fixed address so a site can check them.
- [Bot check](https://agentdrives.com/glossary/bot-check.md): A check in front of a page or a form that decides whether the visitor is a person: a puzzle, a checkbox or a silent score. Each site chooses where it shows and which bots it lets through.
- [Wall](https://agentdrives.com/glossary/wall.md): Anything that stops an AI agent at a product's door: a bot check, a phone number at sign-up, a card before first use, a sign-up that only works in a browser.

Every term: https://agentdrives.com/glossary.md