# Ryufin

> Five plain answers on ~2,400 US stocks from SEC filings: quality, safety, valuation, growth, market.

- name: com.ryufin/stocks
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 83/100 flags: no-repository
- quality: 85/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.ryufin%2Fstocks
- tools: https://api.protogrid.dev/v1/servers/com.ryufin%2Fstocks/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "stocks": {
      "type": "http",
      "url": "https://ryufin.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 100
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-100% +updated-23d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 85/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 86 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 6 of 6 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: search_stocks (destructiveHint); get_stock_answers (destructiveHint); get_company_news (destructiveHint); …
- pass `tools.token_cost`: about 774 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: 2 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 6, about 774 tokens to load them all
- tool set hash: 32783b8e0a5104a0b1a973d20970d881
- tools last changed: 2026-09-30T00:46:52.208Z
- badge: [![protogrid quality](https://protogrid.dev/badge/com.ryufin/stocks.svg)](https://protogrid.dev/servers/com.ryufin/stocks)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-09-30 `get_stock_overview` changed (description)
  - before: Price, market value, P/E, returns, sector, RyuScore (1 to 10 against sector peers) and what the company says it does, verbatim from its latest annual report.
  - after: Price, market value, P/E, returns, sector, RyuScore (0 to 100 from seven weighted criteria) and what the company says it does, verbatim from its latest annual report.
- 2026-09-28 `get_stock_overview` changed (description)
  - before: Price, market value, P/E, returns, sector, Smart Score (1 to 10 against sector peers) and what the company says it does, verbatim from its latest annual report.
  - after: Price, market value, P/E, returns, sector, RyuScore (1 to 10 against sector peers) and what the company says it does, verbatim from its latest annual report.

Full history: https://api.protogrid.dev/v1/servers/com.ryufin%2Fstocks/changes

## Remotes

- https://ryufin.com/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (6)

- `get_answer_changes`: Stocks whose answer to one of the five questions changed in the latest nightly run (for example Safety from Good to Watch), largest companies first.
- `get_company_news`: The company's own recent current reports (8-K), newest first: the date, what kind of event, the company's own sentence and a link to the filing on sec.gov.
- `get_financial_history`: A reported financial series for one stock from its SEC filings, trailing twelve months or single quarters, newest last. Metrics: pe, revenue, net_income, eps, gross_margin, op_margin, net_margin, roe, roa, roic, fcf.
- `get_stock_answers`: Ryufin's five answers for one stock: is the business good, is it safe, is the price fair, is it growing, what is the market doing with it. Each answer has a one-word verdict, a plain sentence, the checks it was read from (with values and dates) and, when it moved recently, what it was before.
- `get_stock_overview`: Price, market value, P/E, returns, sector, RyuScore (0 to 100 from seven weighted criteria) and what the company says it does, verbatim from its latest annual report.
- `search_stocks`: Find US-listed companies Ryufin covers by ticker or company name. Returns ticker, name, sector, market value and the Ryufin page.