# search.semantic.web

Neural/semantic web search — finds conceptually related pages, not just keyword matches. Supports category filters (company, research paper, news, people, tweet), domain filtering, date range. Returns relevance scores and highlighted excerpts (Exa)

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

## Facts

- Tool: `search.semantic.web`
- 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: 10 (1 required)
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `type` | string | no | Search type: "auto" (balanced), "neural" (semantic similarity), "keyword" (traditional). Default: auto |
| `query` | string | yes | Natural language search query — Exa finds semantically related pages, not just keyword matches |
| `category` | string | no | Category filter for specialized indexes (optional) |
| `num_results` | integer | no | Number of results (default 10, max 25) |
| `include_text` | boolean | no | Include full extracted page text in results (default false — saves tokens) |
| `exclude_domains` | array | no | Exclude results from these domains |
| `include_domains` | array | no | Only include results from these domains (e.g. ["arxiv.org"]) |
| `end_published_date` | string | no | Filter: only results published before this date |
| `include_highlights` | boolean | no | Include key sentence highlights (default true) |
| `start_published_date` | string | no | Filter: only results published after this date (ISO format, e.g. "2025-01-01") |

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": "search.semantic.web",
    "arguments": {
      "query": "<query>"
    }
  }
}
```

## Why search.semantic.web is rated Low

Performs read-only semantic search with filtering; retrieves information without side effects or state changes.

From the tool's own definition: "web search, finds pages, returns excerpts, no modification or execution"

Risk signals: High parameter count (10 properties)

## Use case

AI agents call search.semantic.web 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": {
    "search.semantic.web": {}
  }
}
```

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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