Clean scanStatic scanned
Fetches Yahoo Finance quotes, history, financials and search from JavaScript, a CLI or your agent.
884.9k installs/moMIT
Open Nav MCP
open-nav · MCP server
Open Nav MCP connects your AI assistant to the Hungarian NAV Online Számla invoice service. Without credentials it validates invoice data against the schema and business rules, totals VAT by rate, explains fault codes in Hungarian, English or German, renders printable invoices and builds the required data export. With credentials it can check a tax number, submit invoices, follow a submission and list or fetch reported invoices. It suits teams that issue invoices through NAV.
Written by ooruby from the README of @open-nav/mcp 0.3.0.
Not claimed by its maker. Is this yours? Prove it and answer the findings
Why it's useful
Your agent can check invoice data locally before it is sent to NAV and look up what a fault code means if it is rejected.
What you could do with it
- Check invoice data against the schema and business rules and get back the NAV fault codes it triggers.
- Look up what a NAV fault code means in Hungarian, English or German.
- Submit invoice data to NAV after local validation, then wait for the verdict on the submission.
Written from its documentation: what it says it can do, not what our checks found.
Maintenance
Not measuredNo release date is on record for this package yet. The nightly publisher check records one as it reaches each npm package, about once every ten nights.
Release activity only: it says nothing about quality or safety, and a finished small package can be fine without releases. How it is measured
What this does not cover
- Everything. Treat it as you would software from anywhere else.
Receipt history: every signed receipt for every version of this listing, and what changed between them.
In its maker's words
MCP server exposing the Hungarian NAV Online Számla invoice service to AI agents
Compare with
Compare all 4How far this has been checked
Static scanned
- What it establishes
- Its published package, or for a hosted server its source repository at a recorded commit, was read file by file, without running it, by every check in our current scan.
- What it does not
- How it behaves when it runs, or anything the scan does not read yet: several rubric checks, the repository's history, and compiled code in folders named dist or build. For a hosted server, that the endpoint runs the code that was read. The ooruby Index sets out exactly what was read.
- Exactly what was read
- Version 0.3.0, the file with digest sha512-Vu0JcuPaMW14HXGlPqnl2VpHJfWhIlHTXCQWUd1H4GqYL++hGpirK4htOtMzSyHcRjrs8dbCd94er7lKXf2FKw==, as the registry publishes it. A published version cannot be replaced, so this names the same bytes for anyone who checks.
- Authentication
- Runs locally. No hosted endpoint is listed for this package. You run it on your own machine, so there is no endpoint of ours to authenticate against.
Adding it
Paste this into your client's MCP configuration.
{
"mcpServers": {
"open-nav-mcp": {
"command": "npx",
"args": [
"-y",
"@open-nav/mcp@0.3.0"
]
}
}
}Or run it directly.
npx -y @open-nav/mcp@0.3.0Pinned to 0.3.0, which is the version the findings above were found in. Drop the version to take whatever is newest, and the report on this page stops describing what you installed.
Where this came from
- Registry
- npm
- Package
- @open-nav/mcp
- Version read
- 0.3.0
- Resolved
- 2026-10-10
Built from source, attested
npm publishes a signed statement that this exact package was built from the repository below, at this commit. It is verifiable without taking our word for it.
- Repository
- github.com/eshton/open-nav
- Commit
- 540134172e37
- Built by
- github.com/actions/runner/github-hosted
- Registry publish attestation
- signed by npm · 2026-10-10
- Checked
- 2026-10-10
The badge, if this is your listing
It renders the current rung (static scanned) and links back here, where what that does and does not establish is one click away. It updates itself as the evidence deepens.
[](https://ooruby.com/market/open-nav-mcp)About this listing
- Kind
- MCP server
- Category
- Finance & ops
- Pricing
- Free
- Sandbox
- No
- Hosted
- No
- Updated
- 2026-10-07
Similar MCP servers
All MCP serversVerification records what our published tests found on a specific version at a specific date. It is not a warranty, and it does not certify that software is free of defects.