x402 payment rail adapter for PEAC protocol
Govern x402 (HTTP-402 machine payments) with Countersign — guard an agent's payment against policy before it pays.
Grantex Delegation Tokens for x402 payment flows — agent spend authorization with W3C Verifiable Credentials
Shared payment-mode, buyer setup, and x402 helpers for OpenPermit.
TypeScript SDK for the Grantex delegated authorization protocol
Grantex agent identity and delegation for MPP (Machine Payments Protocol)
Shared ESM-only OpenPermit TypeScript contracts and Zod schemas.
ESM-only SDK for OpenPermit buyer agents and seller APIs.
Open-source CLI test harness for MPP discovery, 402 payment challenges, and verified paid-flow smoke tests.
InFlow MPP SDK: seller-side inflow method built as a native mppx server method — challenges are minted and HMAC-bound locally by mppx, while verify delegates settlement to the InFlow PSP (POST /v1/mpp/redeem).
InFlow MPP SDK core: the inflow Method definition, protocol types, codec, and HTTP client.
InFlow MPP SDK: buyer-side inflow method that drives the InFlow buyer endpoints (prepare → poll → cancel) and returns the server-produced credential, composed with the mppx foundation client.