# podcasts.listennotes.search

Full-text search across 3.7M+ podcasts and 186M+ episodes. Search by keyword, filter by language and genre, sort by relevance or date. Returns episode titles, podcast names, audio URLs, and duration. The most comprehensive podcast search API available (Listen Notes)

Agent View of the PolicyLayer registry record for `podcasts.listennotes.search`. HTML page: https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/podcasts.listennotes.search

## Facts

- Tool: `podcasts.listennotes.search`
- Server: Apibase (`apibase-mcp-client`) — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase.md
- Install: `npx -y apibase-mcp-client`
- Homepage: https://github.com/whiteknightonhorse/APIbase
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 7 (1 required)
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `q` | string | yes | Search query — full-text search across 186M+ podcast episodes and 3.7M+ podcasts (e.g. "artificial intelligence", "startup funding", "true crime") |
| `type` | string | no | Search type: "episode" (default) searches episode titles/descriptions, "podcast" searches podcast-level metadata |
| `limit` | integer | no | Max results (1-10, default 10) |
| `offset` | integer | no | Offset for pagination |
| `language` | string | no | ISO 639-1 language code (e.g. "en", "es", "fr"). Filters results by podcast language |
| `genre_ids` | string | no | Comma-separated genre IDs to filter (e.g. "93,127" for Business+Technology). See Listen Notes genre list |
| `sort_by_date` | boolean | no | Sort by date (true) or relevance (false, default) |

Parameters from the server's own tool schema.

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

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "podcasts.listennotes.search",
    "arguments": {
      "q": "<q>"
    }
  }
}
```

## Why podcasts.listennotes.search is rated Low

Read-only search operation that retrieves and queries podcast data without side effects.

From the tool's own definition: "Full-text search across podcasts and episodes. Returns episode titles, podcast names, audio URLs, duration."

## Use case

AI agents call podcasts.listennotes.search to retrieve information from Apibase 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 Apibase:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "podcasts.listennotes.search": {}
  }
}
```

## Other tools on Apibase (1383)

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## 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=io-github-whiteknightonhorse-apibase · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-whiteknightonhorse-apibase