Key0

Zero signup. Zero friction. Agents pay and access your API instantly

Try it nowTalk to us
  • Agent icon
    Every Agent, Every ProtocolHTTP, MCP, and A2A - out of the box
  • Open source icon
    Open SourceYour stack, your rules, no proxies
  • Payment icon
    Any Payment RailUSDC today. Visa, Mastercard, and UPI soon

Trusted Partners

Google
ElevenLabs
Claude
Indian Express
Google
ElevenLabs
Claude
Indian Express
Coming soon

What's next for Key0

Everything an agent needs to pay, onboard, and be trusted.

More payment rails

Move beyond crypto-only checkout with familiar payment methods that bring more buyers into the flow.

VisaMastercardUPI

Agent onboarding

Give new agents a faster path into your platform with smoother setup, discovery, and first-payment flows.

Agent authentication

Add stronger identity and trust signals so authenticated agents can access the right endpoints with confidence.