# MRR Ledger

> Read-only data agent for a sourced ledger of real AI-agent businesses. Every revenue figure has a source URL and an as-of date. Free tier; heavier use can be paid per request or per pass via x402 (USDC on Base).

- **Domain**: `mrrledger.com`
- **Provider**: MRR Ledger (https://mrrledger.com/)
- **A2A protocol version**: 2025-06-18
- **Kind**: paid_api
- **Category**: data
- **Live-responds (last probe)**: None
- **Signed card**: False
- **Streaming**: False
- **Quality score**: 90%
- **Payment protocol**: x402 · network `eip155:8453` · ≥ $0.25

## Skills
- **Search businesses (start here)** — Find AI-agent businesses by keyword, category or tier; returns briefs with sourced annualized revenue plus total and next page. Free (100 calls/day without a ke
- **Get one business profile** — The full sourced record for one business: every dated revenue figure with its source URL, lessons, growth. Free.
- **Revenue leaderboard (ranked)** — Businesses ranked by most recent sourced annualized revenue, highest first. Free.
- **Compare two businesses** — Two businesses side by side with the revenue ratio. Free.

## URLs
- Agent card: https://mrrledger.com/.well-known/agent-card.json
- Page (HTML): https://agenstry.com/agents/mrrledger.com
- Documentation: https://mrrledger.com/for-agents/