diff --git a/tpsc.yaml b/tpsc.yaml
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+# tpsc.yaml — Third-Party Services Catalog declarations for llm-connect
+# Each entry references a service slug from the central catalog at:
+#   the-custodian/canon/tpsc/<slug>.yaml
+# Ingest: cd state-hub && make ingest-tpsc REPO=llm-connect
+
+services:
+  - slug: openai-api
+    purpose: LLM inference via OpenAI-compatible REST API (OpenAIAdapter)
+    auth: api_key
+
+  - slug: anthropic-api
+    purpose: LLM inference via Claude Code CLI subprocess (ClaudeCodeAdapter)
+    auth: cli
+
+  - slug: gemini-api
+    purpose: LLM inference via Gemini generateContent API (GeminiAdapter)
+    auth: api_key
+
+  - slug: openrouter-api
+    purpose: Multi-model LLM routing via OpenAI-compatible endpoint (OpenRouterAdapter)
+    auth: api_key