APEX PSI

Cryptographic truth infrastructure for AI agents: seal, verify, anchor, cite, verify_chain. One config line gives any MCP client five provenance tools backed by an append-only, Bitcoin-anchored, post-quantum ledger.

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APEX PSI MCP Server

Apex PSI is not a tool and not a product. It is the verification substrate — the layer beneath proof. It does not judge. It does not certify. It only remembers. This server is an application built on that layer.

Cryptographic truth infrastructure for AI agents.

One config line gives any MCP-capable AI agent (Claude, Cursor, Qoder, Cline, Windsurf, and more) five provenance tools: seal, verify, anchor, cite, verify_chain.

This server proves the existence and integrity of a record at a point in time. It does not judge the truth of a record's contents. It is an independent verification service, not advice.

Tools

ToolDescription
sealStamp a cryptographic receipt on content (SHA-256 + Ed25519 + post-quantum LMS-W4)
verifyConfirm a receipt's integrity (hash present in the append-only ledger)
anchorRead Bitcoin anchoring status (default), or request anchoring of pending roots
citeGenerate a citation for a receipt (APA, BibTeX, MLA)
verify_chainIndependently verify a chain of receipts for integrity

Installation

Add to your MCP client config:

{
  "mcpServers": {
    "apex-psi": {
      "command": "npx",
      "args": ["-y", "apex-psi-mcp"]
    }
  }
}

Or install locally:

npm install apex-psi-mcp

Configuration

Environment variables (optional):

  • APEX_API_BASE — API endpoint (default: https://apex-infrastructure.com/api)
  • APEX_API_KEY — API key for authenticated access

Usage

Once installed, your AI agent can:

  1. Seal content — "Seal this document with APEX PSI"
  2. Verify receipts — "Verify this receipt against the ledger"
  3. Check anchoring — "What is the Bitcoin anchor status of this seal?"
  4. Generate citations — "Cite this receipt in APA format"
  5. Verify a chain — "Independently verify this chain of receipts"

Every receipt carries a verify link to https://apex-infrastructure.com/verify — sealed arithmetic, public provenance.

Links

License

MIT