{
  "meta": {
    "attribution": "Anchor Terminal (https://www.anchorterminal.com)",
    "docs": "https://www.anchorterminal.com/docs/",
    "generatedAt": "2026-10-05",
    "license": "CC-BY-4.0",
    "method": "https://www.anchorterminal.com/benchmark/",
    "methodology": "0.3",
    "openapi": "https://www.anchorterminal.com/openapi.json",
    "preview": false,
    "run": "2026-10-01",
    "runLabel": "October 2026 research run"
  },
  "tool": {
    "category": "email",
    "endpoint": "https://www.emailmd.dev/api/mcp",
    "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/emailmd.json",
    "kind": "mcp",
    "listed": "indexed",
    "liveUrl": "https://www.anchorterminal.com/api/v1/live/emailmd.json",
    "markdownUrl": "https://www.anchorterminal.com/tools/emailmd.md",
    "mcpTools": {
      "check": {
        "checker": "anchor-check/1.0",
        "totalTokens": 647,
        "counts": {
          "error": 0,
          "note": 1,
          "warn": 3
        },
        "findings": [
          {
            "rule": "TC16",
            "severity": "warn",
            "tool": "lint",
            "message": "no readOnlyHint or destructiveHint",
            "fix": "Its name starts with \"lint\"; if it only reads, set readOnlyHint: true so harnesses can run it without asking."
          },
          {
            "rule": "TC16",
            "severity": "warn",
            "tool": "read_docs",
            "message": "no readOnlyHint or destructiveHint",
            "fix": "Its name starts with \"read\"; if it only reads, set readOnlyHint: true so harnesses can run it without asking."
          },
          {
            "rule": "TC16",
            "severity": "warn",
            "tool": "render",
            "message": "no readOnlyHint or destructiveHint",
            "fix": "Set readOnlyHint: true if it only reads; otherwise set destructiveHint and idempotentHint."
          },
          {
            "rule": "TC24",
            "severity": "note",
            "message": "3 of 3 tools have no outputSchema",
            "fix": "Declare outputSchema for tools that return structured data, and return structuredContent that matches it."
          }
        ]
      },
      "checkedAt": "2026-10-04T22:24:47Z",
      "count": 3,
      "schemaTokens": 647,
      "status": "ok",
      "tools": [
        {
          "name": "render",
          "title": "Render an email",
          "description": "Render emailmd markdown into email-safe HTML. Returns html (the complete email document), text (the plain-text MIME part), meta (frontmatter), warnings (non-fatal repairs made while rendering; aim for none), htmlBytes, and previewUrl (a live browser preview of this exact document to share with the user).",
          "inputSchema": {
            "$schema": "http://json-schema.org/draft-07/schema#",
            "properties": {
              "markdown": {
                "description": "The emailmd markdown document, optionally starting with YAML frontmatter.",
                "maxLength": 262144,
                "type": "string"
              },
              "minify": {
                "description": "Minify the HTML. Recommended for sending; helps stay under Gmail's 102KB clip limit.",
                "type": "boolean"
              },
              "partials": {
                "additionalProperties": {
                  "maxLength": 262144,
                  "type": "string"
                },
                "description": "Named markdown partials spliced in wherever the document says \"::: include \u003cname\u003e\".",
                "propertyNames": {
                  "maxLength": 200,
                  "type": "string"
                },
                "type": "object"
              }
            },
            "required": [
              "markdown"
            ],
            "type": "object"
          }
        },
        {
          "name": "lint",
          "title": "Lint an email",
          "description": "Check emailmd markdown for deliverability, accessibility, and readability problems without rendering it: missing alt text, http:// links, Gmail's 102KB clip limit, generic link text, spam-trigger phrases, and more. Fix warnings before sending; suggestions are sometimes intentional (e.g. transactional emails without an unsubscribe link).",
          "inputSchema": {
            "$schema": "http://json-schema.org/draft-07/schema#",
            "properties": {
              "markdown": {
                "description": "The emailmd markdown document, optionally starting with YAML frontmatter.",
                "maxLength": 262144,
                "type": "string"
              },
              "partials": {
                "additionalProperties": {
                  "maxLength": 262144,
                  "type": "string"
                },
                "description": "Named markdown partials spliced in wherever the document says \"::: include \u003cname\u003e\".",
                "propertyNames": {
                  "maxLength": 200,
                  "type": "string"
                },
                "type": "object"
              }
            },
            "required": [
              "markdown"
            ],
            "type": "object"
          }
        },
        {
          "name": "read_docs",
          "title": "Read emailmd docs",
          "description": "Fetch emailmd documentation from emailmd.dev. Call with no arguments for the index of all pages; pass page to read one (e.g. 'buttons', 'frontmatter', 'theme', 'directives/hero'). Read the relevant page before using syntax you are not sure about.",
          "inputSchema": {
            "$schema": "http://json-schema.org/draft-07/schema#",
            "properties": {
              "page": {
                "description": "Docs page path, e.g. 'buttons' or 'directives/hero'. Omit for the index.",
                "maxLength": 200,
                "pattern": "^[a-z0-9][a-z0-9/-]*$",
                "type": "string"
              }
            },
            "type": "object"
          }
        }
      ]
    },
    "name": "emailmd",
    "note": "Indexed from the official MCP registry: facts and our own checks, not reviewed, so no score, grade or rank.",
    "packages": [
      {
        "registryType": "npm",
        "identifier": "emailmd",
        "version": "0.11.1",
        "transport": "stdio"
      }
    ],
    "pageJsonUrl": "https://www.anchorterminal.com/tools/emailmd.json",
    "popularity": {
      "githubStars": 1381,
      "npmWeekly": 9286
    },
    "registryName": "dev.emailmd/emailmd",
    "remotes": [
      {
        "type": "streamable-http",
        "url": "https://www.emailmd.dev/api/mcp"
      }
    ],
    "repository": "https://github.com/anypost/emailmd",
    "reviewed": false,
    "slug": "emailmd",
    "source": "the official MCP registry",
    "sourceUrl": "https://registry.modelcontextprotocol.io/v0.1/servers?search=dev.emailmd/emailmd",
    "summary": "Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.",
    "updatedAt": "2026-10-02T16:57:35Z",
    "url": "https://www.anchorterminal.com/tools/emailmd",
    "vendor": "emailmd.dev",
    "vendorUrl": "https://emailmd.dev",
    "version": "0.11.1",
    "websiteUrl": "",
    "where": "both",
    "why": [
      "vendor",
      "popular"
    ]
  }
}