zipnative MCP — ZIP creation, inspection, secure extraction & verification

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-10-19T12:18:17.541776Z",
      "publishedAt": "2026-10-19T12:18:17.541776Z",
      "statusChangedAt": "2026-10-19T12:18:17.541776Z"
    }
  },
  "server": {
    "name": "io.github.Nizoka/zipnative-mcp",
    "title": "zipnative MCP — ZIP creation, inspection, secure extraction & verification",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "version": "1.1.0",
    "packages": [
      {
        "version": "1.1.0",
        "transport": {
          "type": "stdio"
        },
        "identifier": "zipnative-mcp",
        "runtimeHint": "npx",
        "registryType": "npm",
        "registryBaseUrl": "https://registry.npmjs.org",
        "runtimeArguments": [
          {
            "type": "positional",
            "value": "-y",
            "valueHint": "skip-confirm"
          },
          {
            "type": "positional",
            "value": "zipnative-mcp",
            "valueHint": "package"
          }
        ],
        "environmentVariables": [
          {
            "name": "ZIPNATIVE_MCP_OUTPUT_DIR",
            "format": "filepath",
            "description": "Absolute path of the one sandbox directory: zipPath / sourcePath inputs are read from it and outputMode='file' / outputDir outputs are written under it (never overwritten; the real path of every file read and of every parent written must stay inside — a planted symlink or junction is SECURITY_VIOLATION). Unset: every tool works on base64 only (no file I/O beyond the opt-in cache)."
          },
          {
            "name": "ZIPNATIVE_MCP_CACHE_DIR",
            "format": "filepath",
            "description": "Opt-in content-addressed response cache directory (absolute path) (SHA-256 keyed, 1h TTL, 256 MiB, oldest-written evicted first, plaintext at rest). Never caches zipPath / sourcePath inputs, file output, defaultDate='now', parallel, describe_engine or draft_governance_issue."
          },
          {
            "name": "ZIPNATIVE_MCP_PORT",
            "format": "number",
            "description": "Serve Streamable HTTP on this loopback port (POST /mcp) instead of stdio (MCP 2026-07-28, stateless, legacy fallback). Unauthenticated unless ZIPNATIVE_MCP_HTTP_TOKEN is set."
          },
          {
            "name": "ZIPNATIVE_MCP_HTTP_TOKEN",
            "isSecret": true,
            "description": "Opt-in bearer token for the HTTP transport (>= 16 chars, no whitespace; a weaker value refuses to start). When set, /mcp requires 'Authorization: Bearer <token>' or answers 401. Compared constant-time, never logged."
          },
          {
            "name": "ZIPNATIVE_MCP_MAX_UNCOMPRESSED_BYTES",
            "format": "number",
            "description": "Operator ceiling for limits.maxEntryUncompressedSize, limits.maxTotalUncompressedSize and limits.maxEntryCompressedSize in bytes (default 8589934592 = 8 GiB, the engine default). Integer >= 1024, read once at startup; an invalid value refuses to start. A per-call value above it is refused with LIMIT_CEILING_EXCEEDED."
          },
          {
            "name": "ZIPNATIVE_MCP_MAX_ENTRIES",
            "format": "number",
            "description": "Operator ceiling for limits.maxEntries and scan_zip_forward maxEntries (default 100000, the engine default; the scanner's default budget of 10000 is clamped to it, only an explicit value above it is refused). Integer >= 1, read once at startup; an invalid value refuses to start."
          },
          {
            "name": "ZIPNATIVE_MCP_WORKERS",
            "format": "number",
            "description": "Operator ceiling for create_zip parallel.workers (default 8; with no explicit workers the engine default max(1, min(cores - 1, 8)) applies, bounded by this ceiling; 0 disables worker threads and keeps compression on the calling thread). Integer >= 0, read once at startup; an invalid value refuses to start."
          },
          {
            "name": "ZIPNATIVE_MCP_MAX_FILE_OUTPUT_BYTES",
            "format": "number",
            "description": "Operator ceiling for every file written in outputMode='file' (create_zip, modify_zip, canonicalize_zip, merge_zip, extract_zip, inflate_raw), enforced while streaming (default 4294967296 = 4 GiB, the 1.0.0 behaviour). Integer >= 1048576, read once at startup; an invalid value refuses to start. Raise it to write Zip64 archives above 4 GiB into the sandbox (create_zip stream entries with zip64: true)."
          }
        ]
      }
    ],
    "repository": {
      "url": "https://github.com/Nizoka/zipnative-mcp",
      "source": "github"
    },
    "websiteUrl": "https://github.com/Nizoka/zipnative-mcp#readme",
    "description": "ZIP MCP server: create, inspect, verify, extract, canonicalize, merge, modify. 15 tools"
  }
}