# get_news_by_source

A read tool on the OpenNews MCP MCP server.

Agent View of the PolicyLayer registry record for `get_news_by_source`. HTML page: https://policylayer.com/tools/6551team-opennews-mcp/get-news-by-source

## Facts

- Tool: `get_news_by_source`
- Server: OpenNews MCP (`6551team/opennews-mcp`) — https://policylayer.com/tools/6551team-opennews-mcp.md
- Homepage: https://github.com/6551Team/opennews-mcp
- Risk category: Read (Low risk)
- Registry record: grade A, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_news_by_source",
    "arguments": {}
  }
}
```

## Why get_news_by_source is rated Low

This tool retrieves cryptocurrency news filtered by source. It retrieves or queries data with no side effects, matching the Read category definition. The confidence is slightly reduced (0.85 rather than higher) due to the empty tool description, which prevents direct confirmation of behavior, but the naming convention and server context provide strong evidence of read-only functionality.

From the tool's own definition: "Tool name 'get_news_by_source' follows the 'get_*' pattern consistent with sibling tools (get_high_score_news, get_hot_news, get_latest_news, get_news_by_engine, get_news_by_signal) that are clearly read-only news retrieval functions."

## Use case

AI agents call get_news_by_source to retrieve information from OpenNews MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches OpenNews MCP:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_news_by_source": {}
  }
}
```

## Other tools on OpenNews MCP (18)

- `subscribe_latest_news` — Other — https://policylayer.com/tools/6551team-opennews-mcp/subscribe-latest-news.md
- `get_company_info` — Read — https://policylayer.com/tools/6551team-opennews-mcp/get-company-info.md
- `get_company_report_text` — Read — https://policylayer.com/tools/6551team-opennews-mcp/get-company-report-text.md
- `get_crypto_holding_changes` — Read — https://policylayer.com/tools/6551team-opennews-mcp/get-crypto-holding-changes.md
- `get_crypto_holdings` — Read — https://policylayer.com/tools/6551team-opennews-mcp/get-crypto-holdings.md
- `get_high_score_news` — Read — https://policylayer.com/tools/6551team-opennews-mcp/get-high-score-news.md
- `get_hot_news` — Read — https://policylayer.com/tools/6551team-opennews-mcp/get-hot-news.md
- `get_key_market_events` — Read — https://policylayer.com/tools/6551team-opennews-mcp/get-key-market-events.md
- `get_latest_news` — Read — https://policylayer.com/tools/6551team-opennews-mcp/get-latest-news.md
- `get_news_by_engine` — Read — https://policylayer.com/tools/6551team-opennews-mcp/get-news-by-engine.md
- `get_news_by_signal` — Read — https://policylayer.com/tools/6551team-opennews-mcp/get-news-by-signal.md
- `get_news_categories` — Read — https://policylayer.com/tools/6551team-opennews-mcp/get-news-categories.md
- `get_news_sources` — Read — https://policylayer.com/tools/6551team-opennews-mcp/get-news-sources.md
- `list_news_types` — Read — https://policylayer.com/tools/6551team-opennews-mcp/list-news-types.md
- `search_companies` — Read — https://policylayer.com/tools/6551team-opennews-mcp/search-companies.md
- `search_news` — Read — https://policylayer.com/tools/6551team-opennews-mcp/search-news.md
- `search_news_advanced` — Read — https://policylayer.com/tools/6551team-opennews-mcp/search-news-advanced.md
- `search_news_by_coin` — Read — https://policylayer.com/tools/6551team-opennews-mcp/search-news-by-coin.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=6551team-opennews-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/6551team-opennews-mcp