Gap note
Machine Payments Protocol gaps
Machine Payments Protocol is a gap note assembled on 2026-10-21. It quotes primary pages for settlement asset, spend controls, revocation, protocol composition, license, governance body, and cross-company use. A line that says not documented uses the day that page was read. The note does not rank the listing.
Last verified 2026-10-21
Sources
Machine Payments Protocol listing · Protocol compatibility · Spend controls · Gaps JSON
| Dimension | Status |
|---|---|
| Settlement asset | Documented |
| Spend controls | Mixed |
| Revocation | Documented |
| Protocol composition | Documented |
| License | Documented |
| Governance body | Documented |
| Cross-company use | Documented |
Settlement asset
Documented
The MPP documentation index describes stablecoin, card, and Lightning Bitcoin payment methods.
MPP protocol site · Read 2026-10-21
Stripe's documentation describes authorization with a card or a stablecoin.
Stripe documentation for MPP · Read 2026-10-16
Spend controls
Documented
Period budget: Yes. The Tempo access key example can spend up to 10 OUSD per day.
Managing agent spend · Read 2026-10-20
Payee or protocol allowlist: Yes. That example limits an OUSD transfer to one recipient address.
Managing agent spend · Read 2026-10-20
Not documented
Not documented as of 2026-10-20. Per payment cap. The spend guide example is a daily token limit on a Tempo access key, not a per payment cap.
Managing agent spend · Read 2026-10-20
Not documented as of 2026-10-20. Human approval above a threshold. The guide shows a wallet authorizing the key up front. It does not state later approval above a threshold.
Managing agent spend · Read 2026-10-20
Revocation
Documented
Revocation: Yes. The guide says each key can have its own revocation path.
Managing agent spend · Read 2026-10-20
Protocol composition
Documented
The MPP documentation index includes a guide for using MPP with x402.
MPP protocol site · Read 2026-10-21
The same index describes an MCP and JSON-RPC transport for MPP challenges.
MPP protocol site · Read 2026-10-21
License
Documented
Apache-2.0. The GitHub license API reported this SPDX identifier on 2026-10-21.
GitHub repository tempoxyz/mpp · Read 2026-10-21
Governance body
Documented
Stripe's documentation describes MPP as co-authored by Stripe and Tempo.
Stripe documentation for MPP · Read 2026-10-16
Cross-company use
Documented
Stripe's documentation describes MPP as co-authored by Stripe and Tempo.
Stripe documentation for MPP · Read 2026-10-16
Questions
- What does not documented mean?
- Not documented means the cited page does not state the fact. The line names that page and the day it was read. It is not a claim that the fact is false.
- What does omitted mean?
- Omitted means this note has no checked source for that dimension. The dimension was left out rather than filled in.
- Does the index rank these products?
- No. The table can be sorted by name, by dimension status, or by checked date. Sort order is not a score.
- Where is the machine readable file?
- GET /data/gaps.json. The file includes every note, the cited sources, and the read dates.