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Merchants that rotate payTo on every 402 (Tavily, Browserbase)

Abierto
#13 3 comentarios 0 reacciones 0 asignados Ver en GitHub

Nadie ha tomado este issue todavía.

Evaluación

Dificultad
5/5
Tiempo estimado
Más de una semana
Aptitud para principiantes
35/100
Tipo de issue
Nueva funcionalidad
Claridad
Bien especificado
Estado de actividad
Activo
Stack tecnológico
blockchain, typescript
Área
security

Línea de trabajo

Begin with the pinned-payTo invariant described in the issue and the existing registry and 402 payment flow; their file paths are not named in the payload. First write a design note in the issue, then assess how the design can be tested with mock merchants that rotate payTo, including a hostile merchant. Done means the owner remains in control of every authorized payee and both test cases are covered.

Escrito por el modelo de indexación a partir del texto del issue.

Descripción

enhancement help wanted

Why

Agent Safe pins each merchant's payTo in the owner's registry: a 402 asking to pay any other address is refused. That is the core protection against redirected payments.

While testing live x402 merchants on Base (2026-10-07) we found two that return a different payTo on every 402 (five probes, five addresses each): Tavily (x402.tavily.com/search) and Browserbase (x402.browserbase.com). A fixed allowlist can't pay them today.

What

Find a way to authorize a rotating payee without letting the server choose who gets paid. Options to discuss:

  • The merchant publishes its payee set or a signing key at a well-known path on its own domain (e.g. /.well-known/x402.json), fetched by the owner at setup time, not by the agent at pay time.
  • A merchant-signed payTo attestation inside the 402, verified against a key pinned in the registry.
  • Per-merchant deposit/forwarder contracts.

Acceptance

  • A design note in this issue first.
  • Whatever ships keeps the invariant: nothing in a 402 can add a payee the owner didn't approve.
  • Tests with a mock merchant that rotates payTo, plus a hostile one that rotates to an attacker.
Lenguaje dominante
TypeScript
Estrellas
0
Forks
0
Merge medio
3 h 51 min
PR fusionados (30 d)
3

Preparar el entorno

Primeros pasos

  1. Lee el issue completo y luego la guía de contribución del proyecto.
  2. Comenta en el issue que vas a ocuparte — evita que dos personas hagan lo mismo.
  3. Haz un fork del repositorio y trabaja en una rama.
  4. Abre un pull request que haga referencia al número del issue.

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