A free, public reference for the AI agent economy. We aggregate transaction volume, service catalogs, and infrastructure health from public sources — Coinbase Agentic Market, x402-list, Nevermined, the Official MCP Registry — and publish honest, primary-source numbers in one place.
Press coverage of agent payment volume keeps citing $50M–$600M lifetime, while Coinbase's own dashboard shows around $1.1M. Artemis estimates roughly half of on-chain x402 traffic is wash-trading. Somebody has to publish the primary-source numbers and flag the discrepancy. We do.
An independent operator in upstate New York. Not a startup, not VC-backed, not a side project of a bigger company. Built because the agent economy needs the same kind of public reference work that CoinMarketCap and DefiLlama provide for crypto, and nobody else is doing it cross-protocol.
Each public marketplace exposes its own catalog API. We hit those on a 5–15 minute cron, dedupe, normalize, and compute a quality grade per service (A–F based on uptime, latency, verification status, and endpoint count). Payment volume we measure ourselves, on-chain — we read stablecoin settlement (USDC, USDT, PYUSD) directly from Base, Polygon, Arbitrum, Ethereum and Solana, wallet by wallet, and strip out single-payer wash. No self-reported or third-party volume feeds.
Our API is free and public, no auth required. See llms.txt for
the agent-readable manifest, the A2A card, or the
JSON endpoints at /api/*. Please cache responses 60
seconds — data refreshes on a 5–15 minute cron, and hitting us faster wastes
both our resources and yours.
Already shipped (recently graduated from this list): wash-adjusted volume, the payer→seller payment graph, a real-earner leaderboard, weekly State-of-the-Economy reports, a tamper-evident audit trail, and an agent-native MCP + x402 API.
Still coming:
Email hello@agentalmanac.org. On X: @agentalmanac. On Bluesky: agentalmanac.bsky.social. Newsletter: agentalmanac.substack.com.
If you operate a service we list and notice anything wrong with our data, tell us. We'll fix it.