# Rill (userill.com)

Lets software companies accept and spend agent payments over Stripe MPP and x402 through a capped-budget ledger.

- Atlas card: https://inite.ai/en/atlas/userill.com
- Site: https://userill.com
- For: Software companies wanting agents to pay for their APIs via MPP and x402 without granting API access
- Categories: finance, agent-payments
- Use 10/100 · alive 90/100

## Used for

- accept agent payments for APIs over MPP and x402
- let agents pay capped budgets for open 402 endpoints
- connect agents to paid resources through an MCP server

## Price

Not read yet.

## For developers

- OpenAPI: https://userill.com/openapi.json (24 paths)
- MCP server: https://mcp.userill.com/mcp/guest (not in the official registry; open on 2026-10-28, 11 tools)
- MCP server card: https://userill.com/.well-known/mcp.json
- Read 2026-10-23

## MCP server, measured daily

Server: https://mcp.userill.com/mcp/guest, checked every day since 2026-11-04 (1 checks).

- Answered: measuring, 1 daily checks so far
- Median first answer: 141 ms
- Sign-in: none
- Context its tool definitions take: about 1381 tokens (11 tools)
- Tool definitions: C, 68/100
- Failing "params_described": 10 of 11 tools
- Failing "annotations": 11 of 11 tools
- Warning "open_writes": rill_pay_url, rill_pay
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Read 2026-10-23

---

Source: INITE Atlas, https://inite.ai/en/atlas/userill.com. JSON: https://inite.ai/api/atlas/userill.com. MCP: https://inite.ai/api/mcp (atlas_lookup).