diff --git a/data/ecosystems/z/zero-knowledge-cryptography.toml b/data/ecosystems/z/zero-knowledge-cryptography.toml
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+# Ecosystem Level Information
+title = "Zero Knowledge Cryptography"
+
+sub_ecosystems = []
+
+github_organizations = []
+
+# Repositories
+[[repo]]
+url = "https://github.com/iden3/circomlib"
+
+[[repo]]
+url = "https://github.com/iden3/rollup"
+
+[[repo]]
+url = "https://github.com/iden3/snarkjs"
+
+[[repo]]
+url = "https://github.com/kobigurk/websnark"
+
+[[repo]]
+url = "https://github.com/scipr-lab/dizk"
+
+[[repo]]
+url = "https://github.com/scipr-lab/libiop"
+
+[[repo]]
+url = "https://github.com/scipr-lab/libsnark"
+
+[[repo]]
+url = "https://github.com/scipr-lab/marlin"
+
+[[repo]]
+url = "https://github.com/scipr-lab/zexe"