--- title: "Marker.io MCP server" url: "https://martechdb.com/vendors/markerio" markdown_url: "https://martechdb.com/vendors/markerio.md" api_url: "https://martechdb.com/api/v1/vendors/marker.io" updated: "2026-10-17" --- # Marker.io MCP server Yes. Marker.io publishes an official MCP server at https://connect.marker.io/mcp. It's hosted. It offers 33 tools. We last checked it on 1 Nov 2026. MartechDB lists only servers the vendor publishes itself, never community servers. **Key facts:** As of 1 Nov 2026, Marker.io's official MCP server scores 65/100 (provisional) on MartechDB's Agent Readiness Index (v1.1). It answered 15 of our 15 checks in the last 90 days and has 33 tools named in its documentation. - Website: [marker.io](https://marker.io) - Categories: [User & market research](https://martechdb.com/categories/user-market-research.md) ## Review Marker.io's Marker.io MCP scores 65/100 on MartechDB's Agent Readiness Index: easy to connect an AI agent to, with a few gaps. The good: - Hosted by Marker.io: connect by URL, with nothing to install - Documented, with 33 tools known - Answered 100% of our checks in the last 90 days Not checked yet: how you sign in; what agent access costs. ## Agent Readiness Index: 65/100 (provisional) How friendly Marker.io is to AI agents, from its best official MCP server. Anything not yet researched scores nothing, so this score may rise once it is. Methodology v1.1: https://martechdb.com/methodology. - Official MCP server: 30/30 (Published by the vendor) - Hosted by the vendor: 25/25 (Connect by URL, nothing to install) - OAuth sign-in: pending (Sign-in: see vendor docs) - Documented tools: 10/10 (A docs page, and its tools are known) - Free to start, pay as you go: 0/15 (Not stated by the vendor) ## Marker.io MCP - Address: https://connect.marker.io/mcp - Runs: Hosted - Sign-in: Sign-in: see vendor docs (`unknown`) - Official MCP Registry: not listed - Documentation: https://help.marker.io/en/articles/14034657-mcp-integration-model-context-protocol - How we know it's official: Documented on Marker.io's own site, at help.marker.io - First seen: 2026-10-17 - Last checked: 2026-11-01 - Recent checks: 7 of the last 7 reachable - Uptime: 100% (15 of 15 checks reachable since 2026-10-18) ### Tools (33) The server needs sign-in before it lists its tools, so these are as the vendor's documentation names them ([source](https://help.marker.io/en/articles/14034657-mcp-integration-model-context-protocol)), read on 2026-10-31. They may be out of date. - `projects_list`: List Marker.io projects for the current team. - `project_get`: Get details of a specific project by projectId. - `project_list_users`: List users (members) of a project by projectId. Returns id, name, email, role, avatar. - `issues_list`: List issues for a project, filterable by status, priority, searchText, with pagination. - `issue_get`: Get full details of a specific issue by issueId. - `issue_update_status`: Update an issue's status (open, in-progress, waiting-for-customer, resolved, archived). - `issue_update_assignee`: Assign or unassign an issue. - `issue_update_priority`: Update an issue's priority (none, low, medium, high, blocker). - `issue_update_type`: Update an issue's type. - `list_issue_types`: List available issue types for a project. - `comment_create`: Add a comment to an issue, with inline @userId mentions and Everyone or Member-only visibility. - `issue_get_context`: Get technical context: browser, OS, screen size, console log summaries, network request summaries. - `issue_get_console_log`: Get full details of a specific console log entry. - `issue_get_network_request`: Get full details of a specific network request. - `issue_get_screenshot`: Get a signed URL for the issue's screenshot. - `issue_get_attachments`: List issue attachments with signed download URLs. - `monitor_summary`: Get a project's accessibility overview: current score, recent change, and pass, fail, and ignored check counts. - `monitor_pages_list`: List monitored pages with each page's score, failing-check count, and last scan status. - `monitor_checks_list`: List accessibility checks (WCAG rules), defaulting to failing checks ranked by score impact. - `monitor_check_guide`: Get the step-by-step guide for fixing a specific check, by checkId. - `monitor_elements_list`: List failing elements, grouped by fingerprint, with occurrence and page counts. - `monitor_element_get`: Get one element's full HTML, suggested fix, failing check, and the pages it appears on. - `monitor_element_screenshot`: Get a rendered screenshot of a failing element. - `monitor_scans_list`: List scan history with scores over time to see the accessibility trend. - `monitor_scan_trigger`: Start a scan of the whole site, specific pages, or every page where an element appears. - `monitor_scan_get`: Check a scan's progress, then its final score, score change, and pages scanned, by scanId. - `monitor_pages_update`: Add or remove monitored pages. - `monitor_elements_update`: Bulk ignore, unignore, resolve, or unresolve elements (up to 100 at once). - `monitor_checks_update`: Ignore or unignore a check so it stops, or starts, counting toward the score. - `monitor_settings_get`: Read a project's monitoring configuration. - `monitor_settings_update`: Update settings: enabled, WCAG level, best practices, schedule, and sitemap path. - `monitor_exclusions_update`: Add or remove URL exclusion rules. - `monitor_discover`: Re-run sitemap page discovery. ### Connect it Claude Code: ```sh claude mcp add --transport http markerio https://connect.marker.io/mcp ``` - Add to Cursor: - Add to VS Code: - Claude.ai and Claude Desktop: Customize, Connectors, "+", Add custom connector, then paste https://connect.marker.io/mcp - ChatGPT: Settings, Apps, Advanced settings, turn on Developer mode, Create, then paste https://connect.marker.io/mcp (this usually works only with servers that use self-serve sign-in or none) JSON for Cursor, Windsurf and other clients that connect to hosted servers: ```json { "mcpServers": { "markerio": { "type": "http", "url": "https://connect.marker.io/mcp" } } } ``` ## Questions ### Does Marker.io have an official MCP server? Yes. Marker.io publishes its MCP server itself. Marker.io's own documentation describes it. MartechDB only lists servers a vendor publishes, never community copies. ### What is the Marker.io MCP server URL? The address is https://connect.marker.io/mcp. ### How do I connect Marker.io MCP to Claude, ChatGPT or Cursor? In Claude, add https://connect.marker.io/mcp as a custom connector (Customize, Connectors, Add custom connector). In Cursor, use the Add to Cursor link on MartechDB's page, or paste the JSON settings into your mcp.json. In Claude Code, run: claude mcp add --transport http markerio https://connect.marker.io/mcp ### What can the Marker.io MCP server do? It offers 33 tools, including projects\_list, project\_get, project\_list\_users, issues\_list and issue\_get (as its documentation names them, read on 31 Oct 2026). ### Is the Marker.io MCP server in the official MCP Registry? No. Marker.io hasn't published it to the official MCP Registry. ### Is the Marker.io MCP server working? Yes. It answered our most recent check. We last checked it on 1 Nov 2026. ### What are the alternatives to Marker.io's MCP server? In User & market research, the most agent-friendly alternatives with an official MCP server are Condens Supercharge (91/100), CB Insights (85/100), Mintel (85/100), Dovetail (85/100) and Rally (85/100). Marker.io scores 65/100 on the same index. ## Change history - 2026-10-17: Added to MartechDB with Marker.io MCP ## Alternatives to Marker.io's MCP server In User & market research, the most agent-friendly first: - [Condens Supercharge](https://martechdb.com/vendors/condens-supercharge.md) (condens.io), Agent Readiness Index 91/100 - [CB Insights](https://martechdb.com/vendors/cb-insights.md) (cbinsights.com), Agent Readiness Index 85/100 - [Mintel](https://martechdb.com/vendors/mintel.md) (mintel.com), Agent Readiness Index 85/100 - [Dovetail](https://martechdb.com/vendors/dovetail.md) (dovetail.com), Agent Readiness Index 85/100 - [Rally](https://martechdb.com/vendors/rally.md) (rallyuxr.com), Agent Readiness Index 85/100 ## Get this data - API: `curl https://martechdb.com/api/v1/vendors/marker.io` - MCP: `claude mcp add --transport http martechdb https://martechdb.com/mcp`, then ask about Marker.io. - Web page: https://martechdb.com/vendors/markerio