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

io.github.Nizoka/zipnative-mcpv1.1.0Other

ZIP MCP server: create, inspect, verify, extract, canonicalize, merge, modify. 15 tools

The current version, v1.1.0, was published to the official MCP registry on 2026-10-19. It is distributed as zipnative-mcp on npm, filed under Other by this index, and declares 8 environment variables. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; the index's current counts put this record in context.

In-path gate · all MCP tools

Using zipnative MCP — ZIP creation, inspection, secure extraction & verification in Claude, Cursor, Gemini CLI, Cline, or Zed?

MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).

Install the mcpindex gate (one command)

Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less

uv tool install mcpindex-gate && mcpindex-config-wire

Auditable install path →Watch it hold a drift →

Trust verdict · v1 advisory · method

REVIEWstatus: PARTIALfresh until 2026-11-18 19:15 UTC

screened 2026-10-19tier: scannedgranularity: description-levelsource: registry

Semantic screen found no manipulation pattern in the description. Conformance probe not yet run.

mcpindex.integrity.descriptionpassINFO

evidence“Tool creates and inspects ZIP files”via static_description

Limits of this verdict

- Semantic screen only - the deterministic conformance probe has not run on this server
- Confidence is reported but not yet calibrated (v1)
- Screen reads the tool description, not the live behavior
- advisory
- registry description only no input schema
- screen model 8b

Semantic screen: an LLM judge reads the tool description for hidden instructions (status PARTIAL). A pass means the description is not lying, not that the tool is safe: a high-capability tool with an honest description still warrants caution. The deterministic conformance probe has not been run on this server yet, so the screen here is semantic-only. Posture: advisory. Confidences are reported but not yet calibrated (calibrated=false at v1). Full verdict history is not shown on this page.

Own this server? Test a description on the public screen → It is a separate check from the verdict above, so the two can differ.

That verdict was true at screening time (snapshot 2026-10-24).

Contracts can change after screening, with no version bump. The gate pins zipnative MCP — ZIP creation, inspection, secure extraction & verification’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.

See your first HOLD in 2 minutes →

Cite this record

People vet a server before wiring it in. One line on your project site or docs answers that with an independent record: screening verdict, registry provenance, contract drift history. It stays current as new screens and drift events land.

Markdown

[Independent trust record for zipnative MCP — ZIP creation, inspection, secure extraction & verification](https://mcpindex.ai/server/io-github-nizoka-zipnative-mcp) - screening verdict, registry provenance, and contract drift monitoring.

HTML

<a href="https://mcpindex.ai/server/io-github-nizoka-zipnative-mcp">Independent trust record for zipnative MCP — ZIP creation, inspection, secure extraction &amp; verification</a> - screening verdict, registry provenance, and contract drift monitoring.

Embed this badge

A live verdict badge for your README or listing. It reflects the current screen, links back here, and updates when the verdict does.

Markdown

[![mcpindex](https://mcpindex.ai/api/v1/badge/io-github-nizoka-zipnative-mcp)](https://mcpindex.ai/server/io-github-nizoka-zipnative-mcp)

HTML

<a href="https://mcpindex.ai/server/io-github-nizoka-zipnative-mcp"><img src="https://mcpindex.ai/api/v1/badge/io-github-nizoka-zipnative-mcp" alt="mcpindex verdict" height="20" /></a>

Environment variables

ZIPNATIVE_MCP_OUTPUT_DIR

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).

ZIPNATIVE_MCP_CACHE_DIR

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.

ZIPNATIVE_MCP_PORT

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.

ZIPNATIVE_MCP_HTTP_TOKEN

secret

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.

ZIPNATIVE_MCP_MAX_UNCOMPRESSED_BYTES

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.

ZIPNATIVE_MCP_MAX_ENTRIES

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.

ZIPNATIVE_MCP_WORKERS

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.

ZIPNATIVE_MCP_MAX_FILE_OUTPUT_BYTES

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).

MCP quality score · maturity, not trust · methodology

freshness

completeness

installability

documentation

stability

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Install this server

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "zipnative-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "zipnative-mcp"
      ],
      "env": {
        "ZIPNATIVE_MCP_OUTPUT_DIR": "<zipnative_mcp_output_dir>",
        "ZIPNATIVE_MCP_CACHE_DIR": "<zipnative_mcp_cache_dir>",
        "ZIPNATIVE_MCP_PORT": "<zipnative_mcp_port>",
        "ZIPNATIVE_MCP_HTTP_TOKEN": "<your-zipnative_mcp_http_token>",
        "ZIPNATIVE_MCP_MAX_UNCOMPRESSED_BYTES": "<zipnative_mcp_max_uncompressed_bytes>",
        "ZIPNATIVE_MCP_MAX_ENTRIES": "<zipnative_mcp_max_entries>",
        "ZIPNATIVE_MCP_WORKERS": "<zipnative_mcp_workers>",
        "ZIPNATIVE_MCP_MAX_FILE_OUTPUT_BYTES": "<zipnative_mcp_max_file_output_bytes>"
      }
    }
  }
}

Cursor (.cursor/mcp.json)

{
  "mcpServers": {
    "zipnative-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "zipnative-mcp"
      ],
      "env": {
        "ZIPNATIVE_MCP_OUTPUT_DIR": "<zipnative_mcp_output_dir>",
        "ZIPNATIVE_MCP_CACHE_DIR": "<zipnative_mcp_cache_dir>",
        "ZIPNATIVE_MCP_PORT": "<zipnative_mcp_port>",
        "ZIPNATIVE_MCP_HTTP_TOKEN": "<your-zipnative_mcp_http_token>",
        "ZIPNATIVE_MCP_MAX_UNCOMPRESSED_BYTES": "<zipnative_mcp_max_uncompressed_bytes>",
        "ZIPNATIVE_MCP_MAX_ENTRIES": "<zipnative_mcp_max_entries>",
        "ZIPNATIVE_MCP_WORKERS": "<zipnative_mcp_workers>",
        "ZIPNATIVE_MCP_MAX_FILE_OUTPUT_BYTES": "<zipnative_mcp_max_file_output_bytes>"
      }
    }
  }
}

Cline (cline_mcp_settings.json)

npx -y -- zipnative-mcp

Claude Code (claude mcp add)

claude mcp add --scope user zipnative-mcp -- npx -y -- zipnative-mcp

Gemini CLI (gemini mcp add)

gemini mcp add -s user zipnative-mcp npx -y -- zipnative-mcp

Verdict API

curl -s mcpindex.ai/api/v1/trust/server/io-github-nizoka-zipnative-mcp

Free-tier verdict as JSON: decision + dimensions + severity. Call it from your agent before it invokes a tool it just discovered.

Details

version: v1.1.0
category: Other
verdict expires: 2026-11-18
quality: 95 / 100
operator: Nizoka

Listing

Listed from the official MCP registry. Unclaimed by its maintainer. Maintainer? Email us →

Provenance

Each verdict is bound to a hash of the exact description it judged, so a re-crawl that changes the text produces a new record rather than silently inheriting this one. Verdict history is hash-chained and anchored to Bitcoin via OpenTimestamps (latest confirmed at block 972,713). Verify it yourself.

Links

Repository →Website →