---
title: "Is the domain disposable?"
method: GET
path: "/disposable"
tags: ["Utilities"]
---

# Is the domain disposable?

`GET /disposable`

## Request

- Base URL: `https://api.oveyon.com/v1`
- URL: `https://api.oveyon.com/v1/disposable`
- Auth: none required

Public (no key). Only the domain against our list, refreshed daily; does not check whether the mailbox exists. Per-IP cap: 60/h.

## Query parameters

- `email` string
- `domain` string

## Response `200`

Result

- DisposableCheck
  - `domain` string
  - `result` 'disposable' | 'not_listed' | 'unknown'
  - `disposable` boolean, nullable
  - `list` object
    - `updatedAt` string
    - `domains` integer
    - `source` string

## Other responses

- `400`: Invalid request — fix it before retrying. Includes `invalid_json`: with `Content-Type: application/json` the body must be valid JSON and cannot be empty; and `request_too_complex` (with `limit`): the body has a list of more than 10,000 items, more than 60,000 values in total, more than 64 levels of nesting or a number/literal longer than 32 characters — text does not count, so a large attachment is one value. An address outside ASCII (accents, a full-width @, a control character, an international domain not in xn-- form) is refused here with `reason: address_not_ascii` and the `field` it came in (`error` stays the family of that field: `bad_recipient` for to/cc/bcc, `invalid_email` for contacts, `bad_request` otherwise).
- `429`: Per-key limit (`rate_limited`, 600 requests/min by default per API key — or per MCP OAuth connection —, from any IP), per-IP limit for requests WITHOUT a valid credential (`rate_limited`, 600/min by default), too many unknown or malformed credentials from your address (`too_many_auth_failures`, 20/min by default, counted per IPv4 address or per IPv6 /48; a missing `Authorization`, an expired OAuth token or a disabled key do not count, and anything without the shape of one of our keys counts without being checked; from an address over that limit a valid key still gets through within 120 credential checks/min, and above them every credential not validated in the last 5 minutes gets this 429 until the minute turns) — all checked before the route, on every operation —, account quota (`quota_exceeded` with `window`, `used`, `limit`), warmup cap (`warmup_cap_reached`) or saturation (`queue_full`). Honor `Retry-After` with exponential backoff and jitter.
- `500`: internal_error — an unexpected failure on our side. The detail stays in our logs, never in the body. Retry reads; retry a write only when it is idempotent or carries an idempotency key.
- `503`: List unavailable — `result: "unknown"`.

---

[API](https://skmtc.dev/oveyon/apis/oveyon-api.md) · [All operations](https://skmtc.dev/oveyon/apis/oveyon-api/llms.txt) · [OpenAPI document](https://skmtc.dev/oveyon/apis/oveyon-api/revisions/abf64c09d297?raw)