Rate limits

What the Wire2Air APIs document about request quotas and the 429 status, and how to retry safely.

Last updated October 6, 2026

The REST API v1 can answer any request with:

Status	Meaning
`429`	API calls quota exceeded.

That status is the only thing the current documentation says about limits.

Handling 429

Until the limits are published, write clients that cope with a 429 without losing messages:

Stop sending on the first 429.
Wait before retrying, and double the wait after each further 429 (for example 1 s, 2 s, 4 s, up to a minute).
Retry the same request. Keep the messages you have not sent yet in your own queue, not in memory only.

Python 3

import time
import urllib.error
import urllib.request


def send_with_retry(request, attempts=6):
    delay = 1
    for _ in range(attempts):
        try:
            with urllib.request.urlopen(request, timeout=30) as response:
                return response.status, response.read().decode("utf-8")
        except urllib.error.HTTPError as error:
            if error.code != 429:
                return error.code, error.read().decode("utf-8")
        time.sleep(delay)
        delay = min(delay * 2, 60)
    raise RuntimeError("Still rate limited after retrying")