diff --git a/data/ecosystems/c/chainlink.toml b/data/ecosystems/c/chainlink.toml
index 903cf38e..a5427374 100644
--- a/data/ecosystems/c/chainlink.toml
+++ b/data/ecosystems/c/chainlink.toml
@@ -165,6 +165,15 @@ url = "https://github.com/smartcontractkit/solc-api-docs"
 [[repo]]
 url = "https://github.com/smartcontractkit/solidity-cborutils"
 
+[[repo]]
+url = "https://github.com/smartcontractkit/synth-index-bnc-adapter"
+
+[[repo]]
+url = "https://github.com/smartcontractkit/synth-index-cc-adapter"
+
+[[repo]]
+url = "https://github.com/smartcontractkit/synth-index-cmc-adapter"
+
 [[repo]]
 url = "https://github.com/smartcontractkit/TownCrier-Offchain-Computation"