Guides to AI agent payments
Guides to x402, MPP, AP2, ACP, and L402, plus how the live totals are counted. Figures on these pages match the homepage.
| Period | Volume | Payments | Payers | Sellers |
|---|---|---|---|---|
| 24 hours | $10,425 | 114,174 | 25,580 | 8,905 |
| 7 days | $40,132 | 186,961 | 3,727 | 2,456 |
| 30 days | $45,963 | 215,671 | 3,792 | 2,482 |
Backfill in progress on base, solana, tempo. A checkpoint is still open, so recent totals can still move.
Explainers
What is the agent economy?
What the agent economy is, which payment standards sit in it, and which payments this site can count.
How AI agent payments work
How x402 charges for a web request, and how MPP, AP2, ACP, and L402 move or approve money.
What AI agents pay for
What each category means, and the dollars AI agents paid in the last 7 days.
How the payment standards compare
Five ways an AI agent can pay, what each one standardizes, and whether Agent GDP counts it.
How we measure Agent GDP
Which payments count, how we price them in dollars, and which ones we leave out.
Questions
- What is Agent GDP?
- Agent GDP is the dollars AI agents paid, counted from public records. Today that is x402 and MPP sessions on Tempo. It is not national GDP.
- Are the numbers on these pages estimates?
- No. A figure is read from public payment records and labeled with the time it was counted. If a live read fails, the page keeps the last successful figures and shows when they were read.
Agent payments glossary · Methodology
Sources
- Agent GDP methodology — Agent GDP
- x402 Protocol Specification, version 2 — Coinbase x402
- Machine Payments Protocol — Stripe
- Agentic Payment Protocol specification, v0.2 — AP2
- Agentic commerce key concepts — OpenAI
- L402 protocol specification — Lightning Labs