Add MCP server for AI agents

Expose webshare_search, webshare_get_link, and webshare_login_check over
stdio via the Model Context Protocol SDK. Document client configuration.

README.md

@@ -11,6 +11,7 @@ Official Webshare HTTP API documentation: [https://webshare.cz/apidoc/](https://
 | **Stream** | `GET /stream/:ident` | Fresh Webshare `file_link` + HTTP 302 to CDN |
 | **Fake qBittorrent** | `/api/v2/*` | Download client API; streams the HTTPS file to disk |
 | **Debug** | `GET /resolve/:ident` | JSON with the resolved CDN URL |
+| **MCP server** | stdio (`npm run mcp`) | Tools for AI agents: search, resolve links, login check |
 
 Webshare download links expire after roughly ten minutes, so the torrent never embeds a CDN URL—only a path on this service that resolves a fresh link at fetch time.
 
@@ -24,6 +25,8 @@ src/
   torznab.js     # caps + search feed XML
   torrent.js     # bencode + fake torrent + info-hash
   qbt.js         # qBittorrent Web API façade + download queue
+  mcp-server.js  # MCP tool registration (shared)
+  mcp.js         # MCP stdio entrypoint for agents
 __tests__/
 compose.yaml
 Dockerfile
@@ -77,6 +80,56 @@ When both run on the same Compose network, use the service name, e.g. `http://we
 
 Sonarr hands `.torrent` files to the fake qBittorrent API. This service extracts the webseed, streams the file into `DOWNLOAD_PATH`, and reports progress via `/api/v2/torrents/*`.
 
+## MCP (AI agents)
+
+Exposes Webshare to MCP-compatible clients over **stdio** (stdout is protocol-only; logs go to stderr).
+
+### Tools
+
+| Tool | Description |
+|------|-------------|
+| `webshare_search` | Search files (`query`, optional `limit` / `offset` / `sort` / `category`) |
+| `webshare_get_link` | Resolve a temporary CDN URL for a file `ident` |
+| `webshare_login_check` | Verify credentials against the Webshare API |
+
+### Run
+
+```bash
+export WEBSHARE_USERNAME=...
+export WEBSHARE_PASSWORD=...
+npm run mcp
+# or: npx webshare-mcp   (after npm link / global install)
+```
+
+### Client configuration example
+
+**Claude Desktop / similar** (`mcpServers`):
+
+```json
+{
+  "mcpServers": {
+    "webshare": {
+      "command": "node",
+      "args": ["/absolute/path/to/webshare-api/src/mcp.js"],
+      "env": {
+        "WEBSHARE_USERNAME": "your-username",
+        "WEBSHARE_PASSWORD": "your-password"
+      }
+    }
+  }
+}
+```
+
+**Grok / OpenCode-style** (TOML):
+
+```toml
+[mcp_servers.webshare]
+command = "node"
+args = ["/absolute/path/to/webshare-api/src/mcp.js"]
+```
+
+Pass `WEBSHARE_USERNAME` and `WEBSHARE_PASSWORD` via the client env settings or a process manager—not in the repo.
+
 ## Tests
 
 ```bash

__tests__/mcp-server.test.js

@@ -0,0 +1,19 @@
+const { formatSize, createWebshareMcpServer } = require('../src/mcp-server');
+
+describe('formatSize', () => {
+  it('formats bytes', () => {
+    expect(formatSize(0)).toBe('0 B');
+    expect(formatSize(512)).toBe('512 B');
+    expect(formatSize(1024)).toBe('1.0 KB');
+    expect(formatSize(1536)).toBe('1.5 KB');
+    expect(formatSize(1024 * 1024)).toBe('1.0 MB');
+  });
+});
+
+describe('createWebshareMcpServer', () => {
+  it('creates a server instance with credentials', () => {
+    const server = createWebshareMcpServer({ username: 'u', password: 'p' });
+    expect(server).toBeDefined();
+    expect(server.server).toBeDefined();
+  });
+});

package-lock.json

@@ -8,10 +8,12 @@
       "name": "webshare-api",
       "version": "1.0.0",
       "dependencies": {
+        "@modelcontextprotocol/sdk": "^1.30.0",
         "axios": "^1.7.0",
         "express": "^4.19.0",
         "multer": "^1.4.5-lts.1",
-        "xml2js": "^0.6.0"
+        "xml2js": "^0.6.0",
+        "zod": "^4.4.3"
       },
       "devDependencies": {
         "jest": "^30.4.2",
@@ -601,6 +603,18 @@
         "tslib": "^2.4.0"
       }
     },
+    "node_modules/@hono/node-server": {
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+      "resolved": "https://registry.npmjs.org/@hono/node-server/-/node-server-2.1.0.tgz",
+      "integrity": "sha512-XovyyCCnBzW+zKu+z/zq8hwNs4KOR5rEMAOxo2f40Q5xoOI37IMm6MIg2COOUtUApo0i6850MTBKH2u4QLGIqg==",
+      "license": "MIT",
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     "node_modules/@isaacs/cliui": {
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       "resolved": "https://registry.npmjs.org/@isaacs/cliui/-/cliui-8.0.2.tgz",
@@ -1037,6 +1051,380 @@
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       }
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@@ -3178,6 +3718,12 @@
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@@ -4524,6 +5088,15 @@
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@@ -4721,6 +5303,55 @@
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+        "depd": "^2.0.0",
+        "is-promise": "^4.0.0",
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+        "path-to-regexp": "^8.0.0"
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+    "node_modules/router/node_modules/path-to-regexp": {
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+      "license": "MIT",
+      "funding": {
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@@ -5822,6 +6449,24 @@
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+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
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+      "license": "ISC",
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     }
   }
 }

package.json

@@ -1,20 +1,26 @@
 {
   "name": "webshare-api",
   "version": "1.0.0",
-  "description": "Webshare.cz HTTP API: Torznab indexer + fake qBittorrent client + stream redirect for Sonarr/Radarr",
+  "description": "Webshare.cz HTTP API: Torznab indexer, fake qBittorrent client, and MCP server for AI agents",
   "main": "src/index.js",
+  "bin": {
+    "webshare-mcp": "src/mcp.js"
+  },
   "scripts": {
     "start": "node src/index.js",
+    "mcp": "node src/mcp.js",
     "test": "jest --coverage --runInBand"
   },
   "engines": {
     "node": ">=18"
   },
   "dependencies": {
+    "@modelcontextprotocol/sdk": "^1.30.0",
     "axios": "^1.7.0",
     "express": "^4.19.0",
     "multer": "^1.4.5-lts.1",
-    "xml2js": "^0.6.0"
+    "xml2js": "^0.6.0",
+    "zod": "^4.4.3"
   },
   "devDependencies": {
     "jest": "^30.4.2",

src/mcp-server.js

@@ -0,0 +1,153 @@
+const { McpServer } = require('@modelcontextprotocol/sdk/server/mcp.js');
+const { z } = require('zod');
+const { WebshareClient } = require('./webshare');
+
+function formatSize(bytes) {
+    if (!Number.isFinite(bytes) || bytes <= 0) return '0 B';
+    const units = ['B', 'KB', 'MB', 'GB', 'TB'];
+    let i = 0;
+    let n = bytes;
+    while (n >= 1024 && i < units.length - 1) {
+        n /= 1024;
+        i++;
+    }
+    return `${n.toFixed(i === 0 ? 0 : 1)} ${units[i]}`;
+}
+
+/**
+ * Build an MCP server that exposes Webshare search and link resolution tools.
+ * @param {{ username: string, password: string }} credentials
+ */
+function createWebshareMcpServer({ username, password }) {
+    const client = new WebshareClient(username, password);
+    const server = new McpServer({
+        name: 'webshare-api',
+        version: '1.0.0',
+    });
+
+    server.registerTool(
+        'webshare_search',
+        {
+            title: 'Search Webshare',
+            description:
+                'Search Webshare.cz for files (default category: video). Returns ident, name, size, and votes for each hit. Use ident with webshare_get_link to resolve a download URL.',
+            inputSchema: {
+                query: z.string().min(1).describe('Search query (title, SxxExx, etc.)'),
+                limit: z
+                    .number()
+                    .int()
+                    .min(1)
+                    .max(100)
+                    .optional()
+                    .describe('Max results (1-100, default 25)'),
+                offset: z
+                    .number()
+                    .int()
+                    .min(0)
+                    .optional()
+                    .describe('Result offset for pagination (default 0)'),
+                sort: z
+                    .enum(['rating', 'recent', 'largest', 'smallest'])
+                    .optional()
+                    .describe('Sort order (default rating)'),
+                category: z
+                    .string()
+                    .optional()
+                    .describe('Webshare category filter (default video)'),
+            },
+        },
+        async ({ query, limit, offset, sort, category }) => {
+            try {
+                await client.ensureAuth();
+                const results = await client.search(query, {
+                    limit: limit || 25,
+                    offset: offset || 0,
+                    sort: sort || 'rating',
+                    category: category || 'video',
+                });
+
+                const lines = results.map(
+                    (f, i) =>
+                        `${i + 1}. ${f.name}\n   ident: ${f.ident}\n   size: ${formatSize(f.size)} (${f.size} bytes)\n   votes: ${f.votes}`
+                );
+                const text =
+                    results.length === 0
+                        ? `No results for query: ${query}`
+                        : `Found ${results.length} result(s) for "${query}":\n\n${lines.join('\n\n')}`;
+
+                return {
+                    content: [{ type: 'text', text }],
+                    structuredContent: { query, count: results.length, results },
+                };
+            } catch (err) {
+                return {
+                    isError: true,
+                    content: [{ type: 'text', text: `webshare_search failed: ${err.message}` }],
+                };
+            }
+        }
+    );
+
+    server.registerTool(
+        'webshare_get_link',
+        {
+            title: 'Resolve Webshare download link',
+            description:
+                'Resolve a temporary HTTPS CDN download/stream URL for a Webshare file ident. Links expire after a short time (~10 minutes). Requires an authenticated Webshare account.',
+            inputSchema: {
+                ident: z
+                    .string()
+                    .min(1)
+                    .describe('Webshare file ident from webshare_search results'),
+            },
+        },
+        async ({ ident }) => {
+            try {
+                const link = await client.getFileLink(ident);
+                return {
+                    content: [
+                        {
+                            type: 'text',
+                            text: `Resolved link for ident ${ident} (expires soon):\n${link}`,
+                        },
+                    ],
+                    structuredContent: { ident, link },
+                };
+            } catch (err) {
+                return {
+                    isError: true,
+                    content: [{ type: 'text', text: `webshare_get_link failed: ${err.message}` }],
+                };
+            }
+        }
+    );
+
+    server.registerTool(
+        'webshare_login_check',
+        {
+            title: 'Check Webshare authentication',
+            description:
+                'Verify that WEBSHARE_USERNAME / WEBSHARE_PASSWORD work by performing a login against the Webshare API.',
+            inputSchema: {},
+        },
+        async () => {
+            try {
+                await client.ensureAuth();
+                return {
+                    content: [{ type: 'text', text: 'Webshare authentication OK.' }],
+                    structuredContent: { ok: true },
+                };
+            } catch (err) {
+                return {
+                    isError: true,
+                    content: [{ type: 'text', text: `Authentication failed: ${err.message}` }],
+                    structuredContent: { ok: false, error: err.message },
+                };
+            }
+        }
+    );
+
+    return server;
+}
+
+module.exports = { createWebshareMcpServer, formatSize };

src/mcp.js

@@ -0,0 +1,32 @@
+#!/usr/bin/env node
+/**
+ * MCP stdio entrypoint for AI agents.
+ *
+ * Configure clients with:
+ *   command: node
+ *   args: ["…/webshare-api/src/mcp.js"]
+ *   env: { WEBSHARE_USERNAME, WEBSHARE_PASSWORD }
+ *
+ * Do not write application logs to stdout — it is reserved for the MCP protocol.
+ */
+const { StdioServerTransport } = require('@modelcontextprotocol/sdk/server/stdio.js');
+const { createWebshareMcpServer } = require('./mcp-server');
+
+async function main() {
+    const username = process.env.WEBSHARE_USERNAME;
+    const password = process.env.WEBSHARE_PASSWORD;
+    if (!username || !password) {
+        console.error('WEBSHARE_USERNAME and WEBSHARE_PASSWORD must be set');
+        process.exit(1);
+    }
+
+    const server = createWebshareMcpServer({ username, password });
+    const transport = new StdioServerTransport();
+    await server.connect(transport);
+    console.error('webshare-api MCP server running on stdio');
+}
+
+main().catch((err) => {
+    console.error('MCP server failed:', err);
+    process.exit(1);
+});

src/webshare.js

@@ -34,7 +34,8 @@ class WebshareClient {
         });
         if (r2.status !== 'OK') throw new Error(`login() failed: ${r2.message}`);
         this.wst = r2.token;
-        console.log('Webshare: authenticated');
+        // stderr only — MCP stdio must keep stdout clean
+        console.error('Webshare: authenticated');
     }
 
     async ensureAuth() {
@@ -43,8 +44,8 @@ class WebshareClient {
         await this._loginPromise;
     }
 
-    async search(query, { limit = 30, offset = 0, sort = 'rating' } = {}) {
+    async search(query, { limit = 30, offset = 0, sort = 'rating', category = 'video' } = {}) {
-        const data = { what: query, category: 'video', sort, limit, offset };
+        const data = { what: query, category, sort, limit, offset };
         if (this.wst) data.wst = this.wst;
         const r = await post('search', data);
         if (!r.file) return [];