zipnative MCP — ZIP creation, inspection, secure extraction & verification
ZIP MCP server: create, inspect, verify, extract securely, modify without recompression. 13 tools
The current version, v1.0.0, was published to the official MCP registry on 2026-09-07. It is distributed as zipnative-mcp on npm, filed under Other by this index, and declares 7 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.
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).
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-wireVerdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands (15/150 labels to graduation). The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: the eval, four-state verdict, honest limits.
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That verdict was true at screening time (snapshot 2026-09-08).
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.
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Related: how to trust an MCP server · screen before install · silent contract drift
ZIPNATIVE_MCP_OUTPUT_DIRAbsolute 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_DIROpt-in content-addressed response cache directory (SHA-256 keyed, 1h TTL, 256 MiB LRU, plaintext at rest). Never caches zipPath / sourcePath inputs, file output, defaultDate='now', parallel, describe_engine or draft_governance_issue.
ZIPNATIVE_MCP_PORTServe 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_TOKENOpt-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_BYTESOperator ceiling for limits.maxEntryUncompressedSize and limits.maxTotalUncompressedSize 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_ENTRIESOperator 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_WORKERSOperator 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.
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