Mercury Agent Cards
./PayVirtual corporate cards created by a human and spent autonomously by an agent, with merchant and category limits
OpenAPI
$ protocol support
[✗]MCP Server
[✓]OpenAPI Spec
[✗]Skill File
[✗]llms.txt
[✗]Structured Feed
$ payment protocols
none documented — this service is not reachable over an agent payment protocol
$ agent access
authAPI Key
onboardingPartial — dashboard signup, then API key
tosExplicitly welcomes bots
webhooksYes
free tierNo
billingper-transaction
#virtual-cards#agent-cards#spend-controls#banking
https://mercury.com
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