What is ynab-mcp-server?

A hosted remote MCP server for YNAB, a budgeting app, with OAuth sign-in. MCP lets an AI agent connect to external tools or data through a standard interface.

Connecting an AI agent to YNAB through the hosted server.

It provides a configured connection to YNAB without requiring the agent to run the server locally. The service is hosted at mcpforynab.smirnovlabs.com.

ynab-mcp-server — MCP server for Claude Code and Codex by issmirnov

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/issmirnov/ynab-mcp-server

Made for: Claude Code, Codex, Cursor, Gemini CLI, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/mcp/issmirnov/ynab-mcp-server/ynab-mcp-server/github.svg)](https://agentmods.dev/mcp/issmirnov/ynab-mcp-server/ynab-mcp-server)

Your own site

<a href="https://agentmods.dev/mcp/issmirnov/ynab-mcp-server/ynab-mcp-server"><img src="https://agentmods.dev/badge/mcp/issmirnov/ynab-mcp-server/ynab-mcp-server/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/mcp/issmirnov/ynab-mcp-server/ynab-mcp-server"><img src="https://agentmods.dev/badge/mcp/issmirnov/ynab-mcp-server/ynab-mcp-server.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin fork From a forked repository.

Security

Grade A, and why

ynab-mcp-server scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

server.json · 6 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

9d ago First seen · 6 lines scan A d822ee4ffe83

Subscribe to this mod's changes

ynab-mcp-server is an MCP server published in the GitHub repository issmirnov/ynab-mcp-server (2 stars, last pushed 1mo ago), with no licence file. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. It comes from a forked repository.

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