# Agent Payments Protocol (AP2) vs Machine Payments Protocol (MPP) (slim)

> Machine Payments Protocol (MPP) has a score of 81.1 (A) against Agent Payments Protocol (AP2)'s 55.3 (C). Both do agent payment protocols. The largest gap is maintenance & community, 76 points. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/ap2-vs-mpp.md (~1,350 tokens) · this version ~380 tokens · JSON https://www.anchorterminal.com/compare/ap2-vs-mpp.json · canonical https://www.anchorterminal.com/compare/ap2-vs-mpp
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-05

Machine Payments Protocol (MPP) has a score of 81.1 (A) against Agent Payments Protocol (AP2)'s 55.3 (C). Both do agent payment protocols. The largest gap is maintenance & community, 76 points.

- Agent Payments Protocol (AP2): C 55.3, rank graded, not ranked against tools · https://www.anchorterminal.com/tools/ap2.min.md
- Machine Payments Protocol (MPP): A 81.1, rank graded, not ranked against tools · https://www.anchorterminal.com/tools/mpp.min.md
- Pick Agent Payments Protocol (AP2) for security & auth (+5), transparency & trust (+11). Pick Machine Payments Protocol (MPP) for reliability (+54), schema & documentation (+15), agent ergonomics (+40), payments & pricing (+34), maintenance & community (+76).

| Category | Agent Payments Protocol (AP2) | Machine Payments Protocol (MPP) |
| --- | --- | --- |
| Reliability (16%) | 31 | 85 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 74 | 89 |
| Agent ergonomics (13%) | 51 | 91 |
| Security & auth (14%) | 84 | 79 |
| Payments & pricing (10%) | 60 | 94 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 19 | 95 |
| Transparency & trust (7%) | 56 | 45 |