MCP.Market

APEX PSI MCP server

by kawal393·io.github.kawal393/apex-psi-mcp·v1.1.2·1 stars
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Append-only evidence receipts for AI records: seal, verify, cite, chain-check, anchor status.

B80/100grade B
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Safety scan
B80/100

full report

Adoption
Growing

1 stars97 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

APEX PSI tools (5)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • anchor

    Read the Bitcoin (OpenTimestamps) anchoring record for the ledger's Merkle roots. Defaults to action:'history', which is read-only and returns each anchor transaction with its txid, block height, confirmation state and how many ledger entries it covers. Pass action:'verify' with a txid to check one transaction, or action:'anchor' to explicitly request that pending roots be aggregated and submitted

  • cite

    Generate a citation for a sealed receipt in APA, BibTeX, or MLA format, citing the APEX PSI ledger entry.

  • seal

    Record content in the APEX PSI append-only ledger and return a receipt: SHA-256 hash, an Ed25519 signature over the Merkle leaf, and post-quantum ML-DSA-65 (plus LMS-W4-SHA256 when a slot is available — the receipt's own algorithm field states which). Proves that this content existed and has not changed since the timestamp. It never proves the contents are true. Free tier: 20 operations/minute, 10

  • verify

    Confirm a seal's integrity against the APEX PSI append-only ledger. Accepts a receipt object (from the seal tool) or a raw SHA-256 hash. Reports whether the hash is present and anchored — integrity, not the truth of the original content.

  • verify_chain

    Independently verify a chain of receipts against the APEX PSI ledger. Recomputes each hash's presence and integrity and reports Merkle chain continuity. Returns a verification report — a recomputation result, not an opinion or a certification.

Public scan report

scanner v0.1.10 · 2026-11-04 · same rubric, same numbers if you re-run it

no findings
  • Code scan3 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitystatic API keys via environment variables6/15
  • Maintenancelast push 3 days ago15/15
  • Maintainer identityregistry namespace matches repository owner6/10
Overall 80/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How APEX PSI compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
80/100
higher than 60% of 48,255 servers
Tools
5
the typical server has 7
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
GitHub stars
1
more than 65% of 28,688 servers
Downloads a week
97
more than 62% of 12,191 servers with a package

What its tools let an agent do: 5 read

Release history: 2 versions in the registry since 2026-08-11, latest 2026-10-23, typically one every 73 days.

Install APEX PSI in Claude Code, Cursor or VS Code

Runs npx -y apex-psi-mcp on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add apex-psi-mcp -- npx -y apex-psi-mcp
Add to Cursor

What the publisher says

From the APEX PSI repository's README, as published. We do not edit it. Read it on GitHub

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, audit.

Tools

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):

  • APEXAPIBASE — API endpoint (default: https://apex-infrastructure.com/api)
  • APEXAPIKEY — 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 is authentic"
  3. Anchor to Bitcoin — "Anchor this receipt to the Bitcoin blockchain"
  4. Generate citations — "Cite this receipt in APA format"
  5. Audit chains — "Audit this chain of receipts"

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

Links

  • Website: https://apex-infrastructure.com
  • Public Verifier: https://apex-infrastructure.com/verify
  • npm: https://www.npmjs.com/package/apex-psi-mcp

License

MIT

Nothing above is checked by us. What we check is on the safety report.

APEX PSI: common questions

Is APEX PSI MCP server safe?
Mostly: it is graded B (80/100). Read the APEX PSI safety report
How do I install APEX PSI?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does APEX PSI need an API key?
Yes. The registry entry asks for APEX_API_KEY.
Is APEX PSI maintained?
The last commit was 3 days ago (2026-11-01). The latest release is v1.1.2.
What can I use instead of APEX PSI?
Servers from other publishers that do the same job: Domain Liveness MCP server.
How does APEX PSI compare with other MCP servers?
safety score 80/100 (higher than 60% of 48,255 servers); tools 5 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to APEX PSI

Same job from other publishers: the closest match first, then the best rated.

  • Domain Liveness
    Is this business's website still there? Checks apex and www, and DNS separately from HTTP.
    A