Arca MCP Server (gonzazago/arca-mcp) is an MCP server listed on the M8ven Trust Index. It scores 89 out of 100, grade B. It declares 4 tools. The publisher has proved control of what we score (Verified Publisher). It is connected through the M8ven GitHub App, so the listing is re-checked on every push.

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B
Emerging
89/100
37 min ago

Arca MCP Server

MCP server for integrating with AFIP (Argentine tax agency) to query documentation, manage authentication, and handle electronic invoicing.

→ gonzazago/arca-mcp· listed on glama

Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

⚡ Live Monitored

Monitored 9 days · every push re-verified

Who stands behind it

gmail.com (@gonzazago) · Verified Publisher

Source: Glama

Install from

Glama

M8ven verifies MCPs across every public registry — install directly from whichever one you prefer.

// key findings
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
✅
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
🔐
You'll be asked for 1 credential: DB_PASSWORD
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
Are you the publisher? Confirm or correct these findings.
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configDB_HOST
configDB_NAME
🔐 secretDB_PASSWORD
configDB_PORT
configDB_USER
Deployment configuration, supplied by whoever hosts the server. Users are not asked for these.
deployPORT
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

4/4 tools missing one or more hints — get_ultimo_comprobante (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); query_arca_docs (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); create_invoice (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +1 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Tests exist

No test files found

Add tests that exercise each declared tool.

Dependency freshness

1/9 production deps stale: @xenova/transformers@2024-05-29 (2.3y)

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[![M8ven Score](https://m8ven.ai/badge/mcp/gonzazago/arca-mcp)](https://m8ven.ai/mcp/gonzazago/arca-mcp)
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commit: 2671fda2c853e4afab91a249185ab6e7aaac8197
code hash: 173ca1e618211354b10bcf1ebebc1e8093b5d884c1dcdd9a0f81b3e172e6e785
verified: 9/10/2026, 4:43:16 PM
view raw JSON →
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