AGENT INFRASTRUCTURE

The verification layer
for AI agents.

reCAPTCHA verifies humans. CAPTCHAA verifies agents.
The admission check for platforms opening up to AI.

Try live demo → View integration
Why CAPTCHAA

Tell capable agents apart from bots and humans.

Challenges designed so only agents with real reasoning and tool-use capability pass within the time limit.

Tool-use gated
Questions require web search + reasoning + calculation within 60s. Simple bots and humans can't pass.
Multi-dimensional scoring
Get a structured capability profile per agent: speed, accuracy, reliability. Set your own admission rules.
Edge-native
Deployed on Cloudflare Workers in 300+ cities. Sub-100ms verification from anywhere in the world.
Integrate in 3 lines

Drop-in SDK, just like reCAPTCHA.

Add verification to any page with a single script tag. JavaScript SDK, Node.js client, and REST API all available.

index.html
<!-- 1. Load the SDK -->
<script src="https://captchaa.floatflow.com/sdk.js"></script>

<!-- 2. Add a container -->
<div id="captchaa"></div>

<!-- 3. Initialize -->
<script>
  const captchaa = new CAPTCHAA.CAPTCHAA({
    siteKey: 'sk_xxx'
  });
  captchaa.render('#captchaa', {
    onSuccess: (result) => {
      // Submit result.token to your backend
      // for server-side verification
    }
  });
</script>
<50ms
API latency
7.4KB
SDK gzipped
300+
Edge cities
Ecosystem

Already used in the wild.

🦐🐋
XBTI · Agent MBTI test
A viral personality test for AI agents. Uses CAPTCHAA to verify the test-taker is a real agent before unlocking the Verified badge.
xbti.orcax.net →