feat(tempo): support refundable machine-token sessions - #800

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parvahuja wants to merge 32 commits into

parvahuja:parv/machineusd-session-support

parvahuja commented Aug 14, 2026 •

edited

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Why

Merchants should accept machineUSD-funded Tempo charges and sessions without changing the payout token or recipient they advertise, while clients keep the same PathUSD and USDC workflow. Existing direct sessions and Mercator behavior must remain compatible.

What

Advertise machine-token support server-side and automatically select a verified, funded machineUSD route; otherwise use the challenged token directly.
Keep the selected session rail sticky and persist only the logical merchant/token scope when the physical descriptor differs.
Split charge and session helpers, preserve deployed charge routes for mixed-version clients, and use the unified router for sessions on mainnet and Moderato.
Enforce router authorization, exact close capture, full-deposit refund authorization, and PathUSD session fees.

pkg-pr-new Bot commented Aug 14, 2026 •

edited

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npm i https://pkg.pr.new/mppx@800

commit: 5c1769e

parvahuja changed the title ~~feat: support machine-token sessions~~ feat: simplify machine-token sessions

parvahuja changed the title ~~feat: simplify machine-token sessions~~ feat(tempo): support refundable machine-token sessions

This was referenced Aug 15, 2026

feat(tempo): support machineUSD sessions #794

Open

feat(tempo): support machine-token sessions without refunds #801

Closed

parvahuja force-pushed the parv/machineusd-session-support branch from a41dcee to 6ec5fe2 Compare

August 18, 2026 16:55

parvahuja commented

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.agents/friction-log/20260818134157-headless-server-imports/friction.md Outdated

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.changeset/lightweight-server-entrypoints.md

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src/tempo/server/ChargeHtml.ts Outdated

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src/tempo/internal/defaults.ts Outdated

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src/tempo/internal/machine-token.ts Outdated

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src/tempo/internal/machine-token.ts Outdated

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src/tempo/internal/signature-envelope.ts

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src/tempo/server/headless.ts Outdated

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src/tempo/session/client/ChannelOps.ts

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src/tempo/session/server/CredentialVerification.ts Outdated

parvahuja and others added 14 commits

August 18, 2026 19:11


          feat: support machine-token sessions

97a24c8


          feat: simplify machine-token sessions

f7d11a5


          fix(tempo): sponsor machine sessions with pathUSD

fec1d10


          fix(tempo): default machine session fee token

5ca4fb2


          refactor(tempo): simplify machine-token session internals

5248a92


          chore(tempo): update testnet machine-token session deployment

db69117


          refactor(tempo): drop the unused resolveSessionRoute helper

88c497e


          perf(tempo): cache immutable session route bindings per client

5a69fa0


          docs(tempo): state the machine-token par-value route invariant

5882e5b


          fix(tempo): omit reusable-session hints when the route matcher fails

975287a


          fix(tempo): preserve router authorization through close finalization

ce6282a


          fix(tempo): require explicit machine-session voucher signers

14140fe


          refactor(tempo): carry the machine rail from challenge resolution

dc63456


          fix(tempo): degrade machine sessions on unsupported chains and escrows

07c2e15

parvahuja and others added 15 commits

August 18, 2026 19:11


          fix(tempo): fall back to the direct rail for unroutable machine sessions

aed89f2


          fix(tempo): resolve the machine session context in every client hook

3e50d92


          fix(tempo): make machine close/signing failures safe after plan persi…

c44af5e

…stence


          fix(tempo): ignore snapshot hints that do not match the challenge rail

33f3ec5


          fix(tempo): use production machineUSD deployment

ed75f4e


          chore(tempo): consolidate machine-session changesets

0de6287


          refactor(tempo): tighten machine-token session internals

bee464f


          fix(tempo): use deployed machine session close ABI

222a742


          fix(tempo): align machine session close accounting

50e8bde


          perf(tempo): add headless server entrypoint

23ef723


          revert(tempo): remove unrelated headless entrypoint

641adf7


          refactor(tempo): simplify machine-token payments

0223a33


          fix(tempo): preserve hosted session fee payer

da860b5


          fix(tempo): keep selected session rail sticky

3c0500b


          fix(tempo): remember direct session fallback

parvahuja force-pushed the parv/machineusd-session-support branch from 6a9d22d to 6668151 Compare

August 19, 2026 00:13

parvahuja added 3 commits

August 18, 2026 21:29


          refactor(tempo): simplify machine-token sessions

02c5549


          fix(tempo): preserve session descriptor validation

a2545cc


          refactor(tempo): streamline machine-token sessions

5c1769e

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