---
title: "Know Your Agent (KYA): definition | Agent Ready Crawlers"
description: "Know Your Agent (KYA): An identity scheme in which an issuer vouches for an agent, its platform and the user it represents, carried as a signed token."
canonical: https://agentreadycrawlers.com/glossary/know-your-agent
site: "Agent Ready Crawlers"
last_updated: 2026-11-04
section: "Glossary"
---

# Know Your Agent (KYA): definition | Agent Ready Crawlers

> Know Your Agent (KYA): An identity scheme in which an issuer vouches for an agent, its platform and the user it represents, carried as a signed token.

Source: https://agentreadycrawlers.com/glossary/know-your-agent
Site: Agent Ready Crawlers
Last reviewed: 2026-11-04

Glossary

# Know Your Agent (KYA)

In short

An identity scheme in which an issuer vouches for an agent, its platform and the user it represents, carried as a signed token. Skyfire is the vendor profiled here that issues such tokens; the rubric grades it on verification and charging. Example: Skyfire issues kya tokens as ES256-signed JWTs sent in a kyapay-token header.

## Definition

An identity scheme in which an issuer vouches for an agent, its platform and the user it represents, carried as a signed token.

## Sourced example

Skyfire issues kya tokens as ES256-signed JWTs sent in a kyapay-token header. [Source](https://docs.skyfire.xyz/docs/verify-and-extract-data-from-tokens.md), read 2026-11-04.

## How it shows up here

Skyfire is the vendor profiled here that issues such tokens; the rubric grades it on verification and charging.

-   [Skyfire profile](https://agentreadycrawlers.com/vendors/skyfire/)
-   [Skyfire vs Stytch IsAgent](https://agentreadycrawlers.com/compare/skyfire-vs-stytch-isagent/)

Previous: [Key directory](https://agentreadycrawlers.com/glossary/key-directory/). Next: [KYAPay](https://agentreadycrawlers.com/glossary/kyapay/). [All 41 terms](https://agentreadycrawlers.com/glossary/).

## Sources

-   [docs.skyfire.xyz: verify and extract data from tokens.md](https://docs.skyfire.xyz/docs/verify-and-extract-data-from-tokens.md) read 2026-11-04

Last reviewed 2026-11-04