diff --git a/content/api/overview.mdx b/content/api/overview.mdx
index 93e2c034b..96d72cc46 100644
--- a/content/api/overview.mdx
+++ b/content/api/overview.mdx
@@ -40,6 +40,8 @@ For available SDKs that rely on some of these APIs, see the [SDK overview](/appl
 | **Authentication**         | [API key][etc-key]                         |
 | **Documentation**          | [Docs][etc-stream-doc]                     |
 
+For live latency data across public TON HTTP endpoints, see [OpenChainBench](https://openchainbench.com/benchmarks/gram-rpc) — p50/p90/p99 measured every 60 seconds from US-East, EU-West and Singapore.
+
 ## TON Center
 
 TON Center is the official provider of HTTP APIs for TON: read blockchain data, query smart contracts, send transactions.