diff --git a/README.md b/README.md
index c471fb16..3e859c6f 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,7 @@ The Rust, Swift, Go, and .NET SDKs ship a `MultiHostClient` for talking to two o
 ## Servers
 
 - **[VS Code agent host](https://github.com/microsoft/vscode)** — The reference AHP server implementation ([`src/vs/platform/agentHost/node/`](https://github.com/microsoft/vscode/tree/main/src/vs/platform/agentHost/node)).
+- **[pi-ahp](https://github.com/Qusic/pi-ahp)** — An open-source AHP host for the [pi coding agent](https://github.com/earendil-works/pi), exposing pi sessions to AHP clients over WebSocket.
 
 ## Versioning and releases
 
diff --git a/docs/guide/implementations.md b/docs/guide/implementations.md
index bffb43a7..f7935709 100644
--- a/docs/guide/implementations.md
+++ b/docs/guide/implementations.md
@@ -18,4 +18,5 @@ for install snippets and per-language entry points.
 
 ## Servers
 
-- **[VS Code agent host](https://github.com/microsoft/vscode)** — The reference AHP server implementation. Start in [`src/vs/platform/agentHost/node/`](https://github.com/microsoft/vscode/tree/main/src/vs/platform/agentHost/node) when browsing the repository.
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+- **[VS Code agent host](https://github.com/microsoft/vscode)** — The reference AHP server implementation. Start in [`src/vs/platform/agentHost/node/`](https://github.com/microsoft/vscode/tree/main/src/vs/platform/agentHost/node) when browsing the repository.
+- **[pi-ahp](https://github.com/Qusic/pi-ahp)** — An open-source AHP host for the [pi coding agent](https://github.com/earendil-works/pi), exposing pi sessions to AHP clients over WebSocket.