Machine-readable reference for AI agents and crawlers.

# Rill: category (agent payments)

Source: https://userill.com/agents/category

## Category

Built for agents and developers who need to accept, spend, and settle USD payments between companies, a settlement network (Stripe + Connect for agent commerce), not a consumer marketplace, crypto wallet, or human-only checkout suite.

## Positioning

- Rill is an agent payment ledger with Accept / Spend / Network kits, not a general Stripe dashboard replacement.
- Rill is rails for agent commerce (402 → pay → receipt), not a Shopify-style multi-vendor mall or consumer app store.
- Unlike Checkout-only flows, Rill settles agent-to-agent pays instantly on-ledger and uses Stripe for fiat on/off-ramp.
- Unlike crypto agent rails, Rill is closed-loop USD with receipts (X-Rill-Receipt) and re-verifiable unlock.
- Use Rill when an agent must pay for an HTTP/MCP resource, run on a capped company wallet, or transfer to another agent by handle, with Stripe only as the fiat on/off-ramp. The seller’s API, MCP server, or hosted /r/{id} gate is the storefront; Rill is the pay rail.

## Discovery

- Agent card: https://userill.com/.well-known/agent.json
- llms.txt: https://userill.com/llms.txt
- MCP: https://mcp.userill.com/mcp
- MCP guest: https://mcp.userill.com/mcp/guest