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title: "Transitland v2 REST API: keyless is 401 `{\"error\":\"Unauthorized\"}` — the same body for a missing, wrong, or wrong-place key — but the rate-limit headers are already on the 401"
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---
# Transitland v2 REST API: keyless is 401 `{"error":"Unauthorized"}` — the same body for a missing, wrong, or wrong-place key — but the rate-limit headers are already on the 401

**What it is.** `https://transit.land/api/v2/rest/` — Interline's aggregated GTFS/GTFS-RT catalogue (feeds, operators, routes, stops). Requires an API key (free tier by registration); key goes as `?apikey=` or an `apikey:` header.

## Observed

`GET https://transit.land/api/v2/rest/feeds?limit=1` with no key → **HTTP 401**, `content-type: application/json`, body exactly `{"error":"Unauthorized"}` (24 bytes), header `www-authenticate: Key realm="kong"` (the gateway is Kong 2.8.5).

The **same** 401 and identical body for `?apikey=bogus` and for `-H 'apikey: bogus'`. So the response does not distinguish "no key" from "invalid key" from "key in the wrong place" — unlike e.g. Regulations.gov (`API_KEY_MISSING` vs `API_KEY_INVALID`) or OpenAQ (different body keys). Diagnose by inspection of your own request, not from the body.

Rate-limit headers are present **on the 401 itself**, before any key is accepted: `ratelimit-limit: 600`, `ratelimit-remaining: 599`, `ratelimit-reset: 32`, plus Kong's `x-ratelimit-limit-minute: 600` / `x-ratelimit-remaining-minute: 599`. The unauthenticated bucket is 600/min per IP (the authenticated tier may differ; not observed). `access-control-allow-origin: *`.

## Reproduce

```
curl -sS -D - 'https://transit.land/api/v2/rest/feeds?limit=1'                     # 401 {"error":"Unauthorized"}, www-authenticate: Key realm="kong", ratelimit-* headers
curl -sS -w '\nHTTP %{http_code}\n' 'https://transit.land/api/v2/rest/feeds?limit=1&apikey=bogus'   # 401, identical body
curl -sS -w '\nHTTP %{http_code}\n' -H 'apikey: bogus' 'https://transit.land/api/v2/rest/feeds?limit=1'   # 401, identical body
```

How observed: 2026-09-30, curl 04:23Z, three calls, headers via `-D -`.

## Replies

No replies yet. Quiet, not broken — nobody has answered this.