diff --git a/README.md b/README.md
index f6a3ae886..13ff96215 100644
--- a/README.md
+++ b/README.md
@@ -279,6 +279,8 @@ _Ask for radio near anywhere and the globe starts broadcasting — every station
 
 ---
 
+**💬 Or ask from Claude and Codex.** God's Eye View is also an MCP server: ask Claude Desktop, Codex or ChatGPT desktop to show a place, and the live globe opens right in the conversation. Setup takes a minute — see [docs/MCP_SETUP.md](docs/MCP_SETUP.md).
+
 ## 🛰️ What's on the Globe
 
 Nineteen layers and map sources. **Seventeen have a keyless path.** Some offer additional capabilities with a provider key. (🟢 no key · 🟡 free key · 🔴 metered.)
diff --git a/docs/MCP_SETUP.md b/docs/MCP_SETUP.md
new file mode 100644
index 000000000..bd5e52c26
--- /dev/null
+++ b/docs/MCP_SETUP.md
@@ -0,0 +1,72 @@
+# MCP setup
+
+Use God's Eye View from Claude and Codex: tools, links, and the live globe
+inside the conversation. Agents: follow these steps in order and check each
+one before going on.
+
+## 1. Run the app
+
+```sh
+npm install
+npm run build:panel   # the in-conversation globe; rerun after app changes
+npm run dev           # http://localhost:5173, keep it running
+```
+
+The MCP server reads from this app. Check: `curl -sI http://localhost:5173/panel/`
+answers `200`.
+
+## 2. Add the server to a client
+
+The server is `server/mcp/stdio.js` in this checkout. Use absolute paths
+(clients do not load your shell profile), with each argument as its own entry.
+
+| Client | How |
+| --- | --- |
+| Claude Code | `claude mcp add gods-eye-view -- node /abs/path/gods-eye-view/server/mcp/stdio.js --api-base http://localhost:5173` |
+| Codex CLI | `codex mcp add gods-eye-view -- node /abs/path/gods-eye-view/server/mcp/stdio.js --api-base http://localhost:5173` |
+| Codex and ChatGPT desktop | Same `~/.codex/config.toml` as the CLI (block below), or Settings → MCP servers → Add server (STDIO). |
+| Claude Desktop | Settings → Developer → Edit Config, then add the JSON below. |
+
+```toml
+[mcp_servers.gods-eye-view]
+command = "node"
+args = ["/abs/path/gods-eye-view/server/mcp/stdio.js", "--api-base", "http://localhost:5173"]
+```
+
+```json
+{
+  "mcpServers": {
+    "gods-eye-view": {
+      "command": "node",
+      "args": ["/abs/path/gods-eye-view/server/mcp/stdio.js", "--api-base", "http://localhost:5173"]
+    }
+  }
+}
+```
+
+**Windows with the checkout in WSL:** use `"command": "wsl.exe"` and put
+`"-e"` and the absolute Linux path to `node` first in `args`, for example
+`["-e", "/home/you/.local/share/mise/installs/node/24/bin/node", "/home/you/gods-eye-view/server/mcp/stdio.js", "--api-base", "http://localhost:5173"]`.
+
+## 3. Restart and try it
+
+Fully quit the client (on Windows, from the tray icon) and reopen it, then
+start a new chat; clients keep the server they started with. Ask: *"Show San
+Diego in God's Eye View with military flights on."*
+
+- Claude Desktop (a chat, not the Code tab), Codex and ChatGPT desktop show
+  the live globe; the first load takes 10–20 seconds.
+- Claude Code and the Codex CLI answer with data and a link.
+
+## Troubleshooting
+
+- **The server does not appear:** run the command from step 2 in a terminal;
+  it should print `God's Eye View MCP server reading http://localhost:5173`
+  and wait. A path or `args` mistake fails here.
+- **The panel says it could not load:** `npm run build:panel` was not run, or
+  the dev server is down.
+- **Logs:** the server writes each call, and why one failed, to stderr. Claude
+  Desktop keeps it in its logs folder as `mcp-server-gods-eye-view.log`; in
+  Codex, right-click the panel → DevTools for the panel's console.
+
+See [tools and the MCP server](TOOLS.md) for what the tools do.
diff --git a/docs/TOOLS.md b/docs/TOOLS.md
index c216d365f..4ed69db69 100644
--- a/docs/TOOLS.md
+++ b/docs/TOOLS.md
@@ -4,6 +4,8 @@ Tools answer questions from God's Eye View data for language-model clients.
 They are defined once and exposed through adapters: the Model Context Protocol
 (MCP) and function calling, which voice uses.
 
+To use them from Claude or Codex, see [MCP setup](MCP_SETUP.md).
+
 ## Layers
 
 | Owner                | Responsibility                                                                                    |