Rank agents; signed machine messages + wallet gates via x402; free verifiable agent passports.
Free
2 servers across ai & agents and payments & billing. The largest is Agent Guild.
AI & Agents · Payments & Billing
2
servers published
2 categories
—
installs
across every listing
0
followers
told when a release lands
2 of 2
tool-list graded
graded from the tools they list, not from code
2 MCP servers. 2 of 2 are free to start.
Authorize x402 payments before signing with request-bound, signed safety decisions.
Free
Authentication
0 of 2 use OAuth
The rest either hold an API key issued by the publisher or ask for nothing.
Support
Community publisher
Listed without a verification tick. Read the listing before installing.