Omniseal MCP Server

Install Omniseal MCP server

claude mcp add --transport http omniseal https://api.purecipher.com/mcp?platform=claude

{
  "mcpServers": {
    "omniseal": {
      "url": "https://api.purecipher.com/mcp?platform=claude"
    }
  }
}

{
  "mcpServers": {
    "omniseal": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://api.purecipher.com/mcp?platform=claude"
      ]
    }
  }
}

{
  "servers": {
    "omniseal": {
      "type": "http",
      "url": "https://api.purecipher.com/mcp?platform=claude"
    }
  }
}

{
  "mcpServers": {
    "omniseal": {
      "serverUrl": "https://api.purecipher.com/mcp?platform=claude"
    }
  }
}

Context tax

Connecting this server adds ~1,194 tokens of tool definitions to every model turn (moderate, 4 tools). Measured 2026-10-19 via its hosted endpoint; o200k tokenizer, worst case for clients that load all tools up front. How we measure

Input prices as of 2026-10-06. Excludes your own prompt and output.

Tools (4)

• seal_files377 tok

  Conceal a secret file inside a cover file, returning a new sealed file without overwriting originals. File results are binary MCP resources; this connector rejects results exceeding its 140,000-character limit. Inputs require actual file bytes or reachable URLs.

• retrieve_secret_file246 tok

  Recover the exact hidden file from an Omniseal sealed file using its private seed. File results are binary MCP resources; this connector rejects results exceeding its 140,000-character limit. Inputs require actual file bytes or reachable URLs.

• remove_hidden_file245 tok

  Return a new clean cover with the hidden payload removed; preserve the original sealed file. File results are binary MCP resources; this connector rejects results exceeding its 140,000-character limit. Inputs require actual file bytes or reachable URLs.

• verify_sealed_file201 tok

  Check whether an Omniseal sealed file shows signs of tampering. File results are binary MCP resources; this connector rejects results exceeding its 140,000-character limit. Inputs require actual file bytes or reachable URLs.

Security signals

92/100 — no known issues found as of 2026-10-19, from the checks below. This is not a guarantee of safety; review what a server can do before connecting it.

Scan it yourself before installing with vectra-guard, the open-source agent security CLI. Scoring rules

Freshness

Active — last maintenance signal 9d ago. The newest of the signals below sets the band.

1. Last commit (default branch)

   2026-10-09 · 9d ago · GitHub

2. Latest release

   no data · GitHub

3. Package published

   no data · npm/PyPI

4. Registry entry updated

   2026-10-09 · 9d ago · official registry · v1.0.0