Presidio Hardened X402 MCP

Pre-payment safety gate for x402 - agents call screen_payment_metadata(...), check_payment_policy(...), and check_payment_replay(...) before signing, catching PII, budget overruns, and duplicate payments before metadata or money leaves the agent host. It runs locally over stdio via the published package.

People connecting finance tools to Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-08-18 · ★ 2 · #127 OF 283 MAINTAINED FINANCE · VERIFIED 2026-08-25

MIT · Python servers · how we verify → /methodology

01 · Install Presidio Hardened X402 MCP

before you install - you'll need

Set AGENT_PRIVATE_KEY before connecting.

Claude Code

claude mcp add presidio-v-presidio-hardened-x402-mcp -- uvx presidio-hardened-x402-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "presidio-v-presidio-hardened-x402-mcp": {
      "command": "uvx",
      "args": [
        "presidio-hardened-x402-mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

pypi package presidio-hardened-x402-mcp - check the name against the project README before installing (PyPI has no namespace ownership)

registry namespace io.github.presidio-v is GitHub-verified and matches the repo owner

03 · What Presidio Hardened X402 MCP can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Limitations (from the README)

- Logs go to stderr (MCP clients capture stderr). stdout is reserved for JSON-RPC frames. - The package is a thin adapter. All security logic lives in presidio-hardened-x402 - read its docs for the entity-type catalog, policy semantics, evidence-ref verification, SLO broker, and audit-chain details. - This MCP release intentionally exposes the same three tools as 0.1.1; the compatibility update is dependency and meta

Latest releases

v0.1.3 · 2026-08-02

Security · Parent floor raised to presidio-hardened-x402>=0.11.1,<0.12.0. Releases through parent v0.11.0 carried a percent-encoding redaction bypass - PIIFilter detected 0 of 6 percent-encoded email forms, so an…

04 · Who maintains Presidio Hardened X402 MCP

presidio-hardened-x402-mcp is maintained by presidio-v. It's the only MCP server we track from this author; the repo dates to May 2026.

05 · Facts

repository: github.com/presidio-v/presidio-hardened-x402-mcp
category: finance - ranked #127 of 283 actively-maintained finance servers as of 2026-08-25.
release cadence: 1 release in the last 90 days (latest 2026-08-02)
registry: io.github.presidio-v/presidio-hardened-x402-mcp (active, first published 2026-05-31)
packages: pypi:presidio-hardened-x402-mcp

06 · Presidio Hardened X402 MCP FAQ

What is Presidio Hardened X402 MCP?

Is Presidio Hardened X402 MCP still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-18 and it shipped 1 release in the last 90 days. We re-verify nightly.

How do I install Presidio Hardened X402 MCP?

Run `uvx presidio-hardened-x402-mcp`. The README documents one environment variable (AGENT_PRIVATE_KEY) to set first. Set AGENT_PRIVATE_KEY before connecting. You can also paste the ready-made client config above.

Does Presidio Hardened X402 MCP run locally?

Yes - it's a stdio server: it runs on your machine (via uvx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Presidio Hardened X402 MCP

Alternatives to Presidio Hardened X402 MCP

Maintained finance servers if Presidio Hardened X402 MCP isn't the fit.

Pairs well with

Servers that cover what Presidio Hardened X402 MCP doesn't - only shown when the pairing reason fits the companion.

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