HTTP 402 Payment Required

Reserved in the original spec and now used in practice for quota, billing and insufficient-funds conditions.

Why you would test it

Rare enough that most clients have never seen one, which is exactly why it is worth provoking before a payment provider sends you one in production.

Endpoints that return 402

2 endpoints in this playground answer with 402. Every one is free, needs no signup, and can be called from the browser or with curl.

• POST https://funapi.dev/api/bank/v1/transfers — Insufficient funds (Bank API)
• GET https://funapi.dev/api/bank/v1/premium/statements — Always. Payment Required on demand, like the pizza oven’s 500. (Bank API)

Other client error codes

• 400 Bad Request
• 401 Unauthorized
• 403 Forbidden
• 404 Not Found
• 405 Method Not Allowed
• 406 Not Acceptable
• 409 Conflict
• 410 Gone

All HTTP status codes · All 37 mock REST APIs · Getting started guide