feat(third_party): add Coinbase plugin

.cursor-plugin/marketplace.json

@@ -397,6 +397,11 @@
       "name": "excalidraw",
       "source": "third_party/excalidraw",
       "description": "Draw and export hand-drawn diagrams from chat."
+    },
+    {
+      "name": "coinbase",
+      "source": "third_party/coinbase",
+      "description": "Check balances, get quotes, and preview or place trades."
     }
   ]
 }

README.md

@@ -80,6 +80,7 @@ Official Cursor plugins for popular developer tools, frameworks, and SaaS produc
 | `meltwater` | [Meltwater](third_party/meltwater/) | Cursor | Integrations | Search media and social mentions and pull analytics. |
 | `daloopa` | [Daloopa](third_party/daloopa/) | Cursor | Integrations | Pull source-linked fundamentals, KPIs, filings, and prices. |
 | `excalidraw` | [Excalidraw](third_party/excalidraw/) | Cursor | Integrations | Draw and export hand-drawn diagrams from chat. |
+| `coinbase` | [Coinbase](third_party/coinbase/) | Cursor | Integrations | Check balances, get quotes, and preview or place trades. |
 Author values match each plugin’s `plugin.json` `author.name` (Cursor lists `plugins@cursor.com` in the manifest).
 
 ## Repository structure

third_party/coinbase/.cursor-plugin/plugin.json

@@ -0,0 +1,54 @@
+{
+  "name": "coinbase",
+  "displayName": "Coinbase",
+  "version": "1.0.0",
+  "minClientVersions": {
+    "cursor": "3.13.0"
+  },
+  "description": "Check balances, get quotes, and preview or place trades.",
+  "author": {
+    "name": "Cursor",
+    "email": "plugins@cursor.com"
+  },
+  "homepage": "https://docs.cdp.coinbase.com/coinbase-for-agents/overview",
+  "repository": "https://github.com/cursor/plugins",
+  "license": "MIT",
+  "logo": "assets/logo.png",
+  "keywords": [
+    "coinbase",
+    "crypto",
+    "trading",
+    "portfolio",
+    "balances",
+    "market data",
+    "advanced trade",
+    "mcp"
+  ],
+  "category": "integrations",
+  "tags": [
+    "coinbase",
+    "finance",
+    "crypto",
+    "mcp"
+  ],
+  "variables": {
+    "type": "object",
+    "properties": {
+      "CLIENT_ID": {
+        "type": "string",
+        "title": "Coinbase OAuth Client ID",
+        "description": "OAuth client ID from the Coinbase Developer Platform portal (portal.cdp.coinbase.com \u2192 OAuth)."
+      },
+      "CLIENT_SECRET": {
+        "type": "string",
+        "title": "Coinbase OAuth Client Secret",
+        "description": "OAuth client secret from the same Coinbase Developer Platform OAuth client."
+      }
+    },
+    "required": [
+      "CLIENT_ID",
+      "CLIENT_SECRET"
+    ]
+  },
+  "mcpServers": "./mcp.json"
+}

third_party/coinbase/CHANGELOG.md

@@ -0,0 +1,9 @@
+# Changelog
+
+All notable changes to this plugin will be documented here.
+
+## 1.0.0 — initial release
+
+- Added the `coinbase` MCP server pointing at Coinbase's hosted Streamable HTTP endpoint (`https://agents.coinbase.com/mcp`).
+- Auth uses OAuth with Coinbase user login. Declared `CLIENT_ID` and `CLIENT_SECRET` plugin variables and forwarded them through MCP auth, since `login.coinbase.com` does not support dynamic client registration.
+- Logo: Coinbase's official mark, from the `coinbase` GitHub organization.

third_party/coinbase/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Cursor
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

third_party/coinbase/README.md

@@ -0,0 +1,69 @@
+# Coinbase
+
+Cursor plugin that connects agents to [Coinbase](https://docs.cdp.coinbase.com/coinbase-for-agents/overview) through Coinbase's official remote [Model Context Protocol](https://modelcontextprotocol.io/) server.
+
+Check balances, get quotes, and preview or place trades.
+
+## Install
+
+1. Open **Cursor Settings → Plugins**.
+2. Search for **Coinbase**.
+3. Click **Install**, then follow **Setup** below.
+
+Or run `/add-plugin coinbase` in chat.
+
+## MCP
+
+```json
+{
+  "mcpServers": {
+    "coinbase": {
+      "url": "https://agents.coinbase.com/mcp",
+      "auth": {
+        "CLIENT_ID": "${CLIENT_ID}",
+        "CLIENT_SECRET": "${CLIENT_SECRET}"
+      }
+    }
+  }
+}
+```
+
+## Setup
+
+Coinbase's authorization server (`login.coinbase.com`) does not support dynamic client registration, so an OAuth client has to be registered before anyone can connect.
+
+1. In the [Coinbase Developer Platform portal](https://portal.cdp.coinbase.com/), create an OAuth client and enable the Coinbase for Agents (`mcp:*`) scopes you want to expose.
+2. Register both redirect URIs on that client:
+   - Desktop: `http://localhost:8787/callback`
+   - Web and Cloud Agents: `https://www.cursor.com/agents/mcp/oauth/callback`
+3. In **Dashboard → Plugins → Configure**, set **Coinbase OAuth Client ID** and **Coinbase OAuth Client Secret** from that client.
+4. Complete the Coinbase login when Cursor prompts.
+
+On a team marketplace an admin sets the client ID and secret once for everyone; each member still completes their own Coinbase login, so tool calls run against that member's account. Coinbase recommends scoping the agent to a dedicated portfolio.
+
+## What agents can do
+
+| Category | Capabilities |
+| --- | --- |
+| Market data | Products, tickers, order books, and candles |
+| Orders | Preview, create, edit, cancel, and list orders; close positions |
+| Portfolios | Balances, portfolio breakdowns, and transfers between portfolios |
+| Conversions | Quote and execute USDC/USD conversions |
+
+The hosted runtime is the source of truth for tool names and schemas.
+
+## Notes
+
+- Orders placed through this server are live. Preview first and keep the agent in an isolated portfolio.
+- This is Coinbase for Agents, not the separate Agentic Wallet / x402 payments MCP.
+
+## Docs
+
+- Coinbase for Agents: https://docs.cdp.coinbase.com/coinbase-for-agents/overview
+- Server URL: https://agents.coinbase.com/mcp
+
+Logo is Coinbase's official mark, from the `coinbase` GitHub organization.
+
+## License
+
+MIT

third_party/coinbase/mcp.json

@@ -0,0 +1,11 @@
+{
+  "mcpServers": {
+    "coinbase": {
+      "url": "https://agents.coinbase.com/mcp",
+      "auth": {
+        "CLIENT_ID": "${CLIENT_ID}",
+        "CLIENT_SECRET": "${CLIENT_SECRET}"
+      }
+    }
+  }
+}