firmauy-mcp-inspectSAFE
Read-only MCP server that brings FirmaUY signature inspection to your AI assistant. Offline, no smart card, no signing, redacted by default.
Overview
From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.
[](https://github.com/carlosplanchon/firmauy-mcp-inspect/actions/workflows/ci.yml) [](https://pypi.org/project/firmauy-mcp-inspect/) [](https://pypi.org/project/firmauy-mcp-inspect/) [](https://opensource.org/licenses/Apache-2.0) [](https://deepwiki.com/carlosplanchon/firmauy-mcp-inspect) [](https://github.com/users/carlosplanchon/packages/container/package/firmauy-mcp-inspect)
firmauy-mcp-inspect is a small, read-only MCP server that lets an AI assistant inspect documents signed with a Uruguayan cédula de identidad using FirmaUY. It verifies signatures (PDF/PAdES, XAdES XML, or a detached CMS .p7s) and validates cédula check digits. Verification runs offline and does not require a smart card.
It exists for the one task where an assistant genuinely beats the bare CLI, triaging a batch of signed documents in plain language. Hand it the files in a folder and it verifies every one, returning a count by verdict and, per file, the verdict, the issuing CA and how its timestamps came out. The assistant does the grouping and points at anything that is not VALID or whose certificate chain is not trusted, leaving you a summary to act on.
By design it only ever inspects. It cannot
4830feadd496OBSERVED · 2026-10-09Connect
Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control.
claude mcp add firmauy-mcp-inspect -- uvx firmauy-mcp-inspect
{
"mcpServers": {
"firmauy-mcp-inspect": {
"command": "uvx",
"args": [
"firmauy-mcp-inspect"
]
}
}
}Exposed tools (4)
4 read · 0 write · 0 destructive.
| Tool | Risk | Description |
|---|---|---|
doctor | read | Report the local FirmaUY setup status (PC/SC stack, PKCS#11 module, card, bundled CAs). |
validate_ci | read | Validate a Uruguayan cédula |
verify | read | Verify a signed file (PDF/PAdES, XAdES XML, or detached CMS/.p7s) and report its validity. |
verify_batch | read | Verify many signed files at once and return a summary plus a compact per-file result. |
Trust audit
SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | PASS |
| L1 | Static analysis of the code | PASS |
| L2 | Instruction surface (what it tells the agent) | PASS |
| L3 | Class-specific surface | PASS |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- declared (5 observation(s))
- Network
- none-observed
- Shell
- none-observed
- Dependencies
- pinned
- Secrets in source
- none-found
Findings (0)
No findings outside the package's declared scope.
Gates applied: no_behavioural_pass.
4830feadd496full audit observations/trust-audit/mcp-server/carlosplanchon__firmauy-mcp-inspect.json · Report an issue / request a re-scanAudit history
Every audit this server has had. A grade with a past is a grade somebody is still checking.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-10-09 | 4830feadd496 | SAFE | B | 89 | first audit |
Questions
What is the firmauy-mcp-inspect MCP server?
Read-only MCP server that brings FirmaUY signature inspection to your AI assistant. Offline, no smart card, no signing, redacted by default.
What tools does firmauy-mcp-inspect expose?
4 in total: 4 read-only, 0 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.
Is firmauy-mcp-inspect safe to connect to an agent?
The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean server reads B.
What credentials does firmauy-mcp-inspect need?
No credential environment variables were found in its source, so it appears to need none.
How current is this page?
The grade is for one exact copy of the source (4830feadd496), read on 2026-10-09. The repository is watched and re-audited when it changes.