Unkey
./IdentifyAPI key management and rate limiting for machine-to-machine auth
OpenAPI
$ protocol support
[✗]MCP Server
[✓]OpenAPI Spec
[✗]Accepts MPP
[✗]Accepts x402
[✗]Supports ACP
[✗]Supports UCP
[✗]Skill File
[✗]Plugin Manifest
[✗]llms.txt
[✗]Structured Feed
[✗]Agent Protocol
$ agent access
authAPI Key
onboardingPartial — dashboard signup, then API key
tosExplicitly welcomes bots
webhooksYes
free tierYes
billingpay-per-request
#api-keys#rate-limiting#m2m-auth
https://unkey.dev