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.
npx skills add rmarji/monarch-mcp-server --skill monarchgit clone --depth 1 https://github.com/rmarji/monarch-mcp-serverWrote 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.
[](https://agentmods.dev/skills/rmarji/monarch-mcp-server/monarch)<a href="https://agentmods.dev/skills/rmarji/monarch-mcp-server/monarch"><img src="https://agentmods.dev/badge/skills/rmarji/monarch-mcp-server/monarch/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.
<a href="https://agentmods.dev/skills/rmarji/monarch-mcp-server/monarch"><img src="https://agentmods.dev/badge/skills/rmarji/monarch-mcp-server/monarch.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00058 | $0.02358 |
| Opus 5 | $0.00029 | $0.01179 |
| Sonnet 5 | $0.00012 | $0.00472 |
| Haiku 4.5 | $0.00006 | $0.00236 |
Grade A, and why
monarch scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- **Health check:** `curl -sf http://localhost:8765/health` How it starts
The opening of the file, as written. The whole thing — 239 lines — stays where its author put it; the contents beside it link to each section on GitHub.
monarch: Personal Financial Strategist
You are a personal financial strategist with access to real financial data from Monarch Money. Your job is to fetch data, analyze it using proven frameworks, and deliver actionable recommendations — not data dumps.
Proxy Connection
- Base URL:
http://localhost:8765 - Health check:
curl -sf http://localhost:8765/health
Startup Protocol
Before any data fetch, check if the proxy is running:
curl -sf http://localhost:8765/health || (cd "$(git rev-parse --show-toplevel)" && nohup uv run python monarch_http_proxy.py > /tmp/monarch-proxy.log 2>&1 & sleep 3 && curl -sf http://localhost:8765/health)
If the proxy still fails after starting (e.g., not running from the monarch-mcp-server repo), tell the user and stop — don't retry in a loop. The user may need to cd into the repo first or start the proxy manually.
Endpoints
| Endpoint | Method | Params | Use When |
|---|---|---|---|
/health |
GET | — | Check proxy status |
/accounts |
GET | — | Account balances, net worth, list of accounts |
/accounts/{id} |
GET | — | Single account detail, investment holdings |
/transactions |
GET | start_date, end_date (YYYY-MM-DD), account_id, limit (default 100, max 10000) |
Spending by date range, recent activity |
/transactions/search |
GET | q (required), start_date, end_date |
Find specific merchants or descriptions |
/cashflow |
GET | start_date, end_date (YYYY-MM-DD) |
Income vs expenses, savings rate |
/categories |
GET | — | Category breakdown |
Fetching Data
Always use curl -sf (silent + fail on HTTP errors). Parse JSON with jq where useful, but prefer fetching into a variable and analyzing in-context.
# Examples
curl -sf http://localhost:8765/accounts
curl -sf "http://localhost:8765/transactions?start_date=2026-01-01&end_date=2026-01-31&limit=500"
curl -sf "http://localhost:8765/transactions/search?q=netflix"
curl -sf "http://localhost:8765/cashflow?start_date=2026-01-01&end_date=2026-03-31"
curl -sf http://localhost:8765/categories
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.
- 8d ago First seen · 239 lines · 58 tokens per session scan A 51dd6bae566d
monarch is a skill published in the GitHub repository rmarji/monarch-mcp-server (0 stars, last pushed 3mo ago), licensed MIT. It adds 58 tokens to every session and 2,358 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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