4xx Client Error

HTTP 402 Payment Required

Reserved for future use. Originally intended for digital payment systems, this status code is not widely used by standard protocols but is sometimes employed by APIs to indicate that payment is needed.

Common Causes

  • API subscription or usage quota exceeded
  • Premium feature requires paid plan
  • Trial period expired, payment needed

How to Fix

  1. 1Upgrade your subscription or payment plan
  2. 2Check billing status and payment method
  3. 3Contact the service provider about pricing options

Example

HTTP 402 Payment Required
GET /api/premium-data HTTP/1.1

→ 402 Payment Required
→ { "message": "Upgrade to Pro for access" }

Related Client Error Codes

400

Bad Request

401

Unauthorized

403

Forbidden

404

Not Found

405

Method Not Allowed

406

Not Acceptable

407

Proxy Authentication Required

408

Request Timeout

409

Conflict

410

Gone

411

Length Required

412

Precondition Failed

413

Content Too Large

414

URI Too Long

415

Unsupported Media Type

416

Range Not Satisfiable

417

Expectation Failed

418

I'm a Teapot

421

Misdirected Request

422

Unprocessable Content

423

Locked

424

Failed Dependency

425

Too Early

426

Upgrade Required

428

Precondition Required

429

Too Many Requests

431

Request Header Fields Too Large

451

Unavailable For Legal Reasons