Security & Testing

pqcs4.com

Provides post-quantum cryptographic operations using ML-DSA and ML-KEM algorithms.

1 endpoint6 known toolsFirst detected June 4, 2026Last detected August 19, 2026

ENDPOINT 1

https://pqcs4.com/api/mcp

No auth detected

MCP server metadata

Name: pqcs-l-plus
Version: 1.0.0

Capabilities

tools.listChanged

Server instructions

PQCS L+ — Post-Quantum Security Solution. Tools expose ML-DSA-65 (Dilithium3) as Digital ID for signing/verification, and ML-KEM-768 (FIPS 203) for key encapsulation. Use pqcs_id_* tools for identity and pqcs_kem_* tools for establishing shared secrets.

Known tools 6

pqcs_id_keygen

Generate a PQCS L+ Digital ID keypair using ML-DSA-65 (Dilithium3).

Inferred read-only

pqcs_id_sign

Sign a UTF-8 message with a PQCS L+ Digital ID (ML-DSA-65 / Dilithium3) secret key.

Potential side effects

pqcs_id_verify

Verify a PQCS L+ Digital ID signature (ML-DSA-65 / Dilithium3) over a UTF-8 message.

Potential side effects

pqcs_kem_keygen

Generate a PQCS L+ KEM keypair using ML-KEM-768 (FIPS 203).

Inferred read-only

pqcs_kem_encapsulate

Encapsulate a shared secret to a recipient's ML-KEM-768 public key.

Inferred read-only

pqcs_kem_decapsulate

Decapsulate an ML-KEM-768 ciphertext using the recipient's secret key.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.pqcs-l-plus]
url = "https://pqcs4.com/api/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "pqcs-l-plus": {
      "type": "http",
      "url": "https://pqcs4.com/api/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: pqcs-l-plus
Remote MCP URL: https://pqcs4.com/api/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "pqcs-l-plus": {
      "url": "https://pqcs4.com/api/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "pqcs-l-plus": {
      "type": "http",
      "url": "https://pqcs4.com/api/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "pqcs-l-plus",
  "transport": "streamable-http",
  "url": "https://pqcs4.com/api/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Trust Data Available

BuiltWith Trust API v2 evidence for pqcs4.com was fetched 2026-08-21T13:22:58.903Z and is being refreshed.

Trust status Neutral

pqcs4.com is assessed as Neutral: No suspicious signals found, but no strong positive signal either

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.