MCP-native tool registry · metered checkout
Build for the buyer that's coming,
not the one that's leaving.
Your product page sells to humans. Your API, schema and token model sell to agents. AgentStack publishes your capability as structured data that AI agents discover, install and pay for — programmatically.
POST /functions/discoverTools
{
"capability_query": "verify an email address before signup",
"results": [
{
"id": "tool_2",
"name": "Email Verification API",
"pricing": {
"model": "per_call",
"unit_price": 0.002
},
"rank_score": 91.4
}
]
}01
Discovery as structured data
Every tool ships as a machine-readable schema — capability, params, docs, pricing — indexable and rankable by an agent. Not a marketing page.
02
Install, not sell
An agent reads the docs, checks the price and installs via API inside its own environment. No checkout, no demo, no funnel.
03
Tokenized access
Metered billing: tokens per action, credits per query, price per outcome. Never $49/mo, never per-seat.