From 2d4d257bbad5341a9983bed34b694a58f53d72e7 Mon Sep 17 00:00:00 2001
From: MrAlders0n <55921894+MrAlders0n@users.noreply.github.com>
Date: Mon, 19 Oct 2026 19:47:06 -0400
Subject: [PATCH] Document the 1000-value cap on list params (#33)

---
 docs/api-contract.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/docs/api-contract.md b/docs/api-contract.md
index ff0b094..2e75414 100644
--- a/docs/api-contract.md
+++ b/docs/api-contract.md
@@ -150,6 +150,8 @@ Most list and stats endpoints take the same location filters:
 | `region` / `regionId` | Region slug or ID; expands to its member IATAs and adds them to any `iatas`. An unknown region or malformed ID is a `400`; a failed lookup is a `500`. |
 | `scope` | Transport scope name, URL-encoded (`%23bc` for `#bc`) |
 
+Comma-separated list params (`iatas`, `scopes`, `payloadTypes`, `routeTypes`) take at most 1000 values; more is a `400`.
+
 ---
 
 ## REST endpoints