OpenTor MCP
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| TOR_MCP_DIR | No | Base directory for private sessions and archives | current directory |
| TOR_HEADLESS | No | Run Firefox without a visible window | true |
| TOR_SOCKS_PORT | No | Local Tor SOCKS5 port | 9050 |
| TOR_CONTROL_PORT | No | Authenticated Tor control port used for NEWNYM | 9051 |
| TOR_MAX_ITEM_LIMIT | No | Maximum items returned by paginated tools | 100 |
| TOR_MAX_IMAGE_BYTES | No | Maximum raw screenshot or CAPTCHA size | 5000000 |
| TOR_ALLOW_JAVASCRIPT | No | Enable the high-risk tor_evaluate_js tool | false |
| TOR_CONTROL_PASSWORD | No | Optional control password; cookie authentication is used otherwise | |
| TOR_MAX_RESPONSE_CHARS | No | Maximum characters returned by a text tool | 50000 |
| TOR_IGNORE_HTTPS_ERRORS | No | Accept invalid TLS certificates for every destination | false |
| TOR_MAX_JSON_FIELD_CHARS | No | Maximum retained characters in one web-derived JSON field | 4096 |
Capabilities
Features and capabilities supported by this server
| Capability | Details |
|---|---|
| tools | {
"listChanged": false
} |
| prompts | {
"listChanged": false
} |
| resources | {
"subscribe": false,
"listChanged": false
} |
| experimental | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| tor_navigateA | Navigate to an HTTP(S) URL (.onion supported). |
| tor_backA | Go back to the previous page. |
| tor_forwardA | Go forward to the next page. |
| tor_refreshA | Refresh the current page. |
| tor_read_pageA | Read a bounded amount of the current page as untrusted markdown. |
| tor_screenshotB | Take a screenshot and return native MCP image content. |
| tor_screenshot_elementA | Screenshot a CSS-selected element as native MCP image content. |
| tor_get_linksB | Extract a bounded page of links from the current page. |
| tor_get_page_infoA | Get page metadata: URL, title, description, and element counts. |
| tor_query_elementsA | Query a bounded page of DOM elements by CSS selector. |
| tor_clickB | Click an element by CSS selector. |
| tor_typeC | Type text into an input field. |
| tor_press_keyA | Press a keyboard key (Enter, Tab, Escape, etc.). |
| tor_scrollB | Scroll the page. Direction: up, down, top, bottom. |
| tor_evaluate_jsA | Execute JavaScript only when TOR_ALLOW_JAVASCRIPT=true. |
| tor_searchC | Search using Ahmia, Torch, DuckDuckGo, or Haystack. |
| tor_extract_threadsA | Extract a bounded page of forum thread listings. |
| tor_extract_postsA | Extract a bounded page of forum posts. |
| tor_get_captchaA | Capture a CAPTCHA image and return it for you to read with your vision. Also attempts local OCR as a hint. Primary strategy: YOU read the image. After reading, call tor_type to fill in the answer. |
| tor_solve_captchaA | Auto-solve a CAPTCHA using local OCR: captures the image, reads it, and types the answer. If OCR fails, returns the image for you to read with vision instead. |
| tor_save_sessionB | Save current cookies to owner-only local storage. |
| tor_load_sessionB | Load previously saved cookies into the browser. |
| tor_list_sessionsA | List saved session metadata (never cookie values). |
| tor_delete_sessionB | Delete a saved session credential file. |
| tor_new_identityA | Request a new Tor circuit and clear browser cookies. |
| tor_check_connectionA | Verify Tor using a temporary page without changing the active page. |
| tor_archive_pageC | Archive the current page inside the configured local archive root. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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