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@chainsafe/x402-core

v0.0.0-reserved

Published

Shared x402 Canton wire types, canonical requirements hashing, verify primitives, and network presets.

Vulnerabilities

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  • 0Medium
  • 0Low

Links

Git

Maintainers

sadiq1971sadiq1971joshdougalljoshdougallforward_chainsafeforward_chainsafedhyaniarun1993dhyaniarun1993kalambetkalambet

Keywords

x402cantonpaymentsweb3micropayments

Readme

@chainsafe/x402-core

Shared core for the Canton x402 SDK: wire types, canonical PaymentRequirements hashing, verify primitives, and network presets. Every other @chainsafe/x402-* package builds on this one.

Ships dual ESM + CJS with type declarations. Its runtime dependencies (valibot, @noble/*, protobufjs) are bundled, so it installs with no external runtime dependencies.

Install

npm install @chainsafe/x402-core

What's in it

  • Wire types for the exact-canton x402 scheme — CantonPaymentPayload, CantonPaymentRequirements, and the verify / settle / supported request and response shapes (validated with valibot).
  • requirementsHash() — the canonical hash that binds a payment to its PaymentRequirements.
  • Verify primitives — createExactCantonVerifier() plus Ed25519 signature and party-fingerprint helpers.
  • Network presets & guards — devnet/mainnet ids and validators such as isX402Request / isCantonPaymentRequirements.

Consumed by @chainsafe/x402-client, @chainsafe/x402-express, and @chainsafe/x402-server-sdk.

License

Apache-2.0