# check_aeo_record

Check any domain (cataloged or not) for a v=AEO1 DNS record at _aeo.<domain>, the open standard (aeorecord.org) declaring whether a verified fact record exists and at what trust tier. Verifies the Ed25519 sig= against the live catalog content when present.

Agent View of the PolicyLayer registry record for `check_aeo_record`. HTML page: https://policylayer.com/tools/com-groundedaeo-grounded-aeo/check-aeo-record

## Facts

- Tool: `check_aeo_record`
- Server: Grounded Aeo (`https://groundedaeo.com/api/mcp`) — https://policylayer.com/tools/com-groundedaeo-grounded-aeo.md
- Homepage: https://github.com/https://groundedaeo.com/api/mcp
- Risk category: Read (Low risk)
- Registry record: grade D, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 1 (1 required)
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `domain` | string | yes |  |

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": "check_aeo_record",
    "arguments": {
      "domain": "<domain>"
    }
  }
}
```

## Why check_aeo_record is rated Low

This tool queries DNS records and validates signatures—pure information retrieval with no side effects. No data is written, modified, or deleted; no code is executed; no irreversible actions occur. The verification step is a read-only validation. Severity is low because a miscall merely returns incorrect information about a domain's AEO certification status, with no operational impact.

From the tool's own definition: "check_aeo_record performs DNS lookups and verification of existing v=AEO1 records without modification. The description states it 'checks' and 'verifies' but does not create, modify, delete, or execute operations."

## Use case

AI agents call check_aeo_record to retrieve information from Grounded Aeo 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 Grounded Aeo:

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

## Other tools on Grounded Aeo (13)

- `run_audit` — Execute — https://policylayer.com/tools/com-groundedaeo-grounded-aeo/run-audit.md
- `check_serp` — Read — https://policylayer.com/tools/com-groundedaeo-grounded-aeo/check-serp.md
- `get_citations` — Read — https://policylayer.com/tools/com-groundedaeo-grounded-aeo/get-citations.md
- `get_cited_domains` — Read — https://policylayer.com/tools/com-groundedaeo-grounded-aeo/get-cited-domains.md
- `get_company_facts` — Read — https://policylayer.com/tools/com-groundedaeo-grounded-aeo/get-company-facts.md
- `get_competitive_snapshot` — Read — https://policylayer.com/tools/com-groundedaeo-grounded-aeo/get-competitive-snapshot.md
- `get_engine_visibility` — Read — https://policylayer.com/tools/com-groundedaeo-grounded-aeo/get-engine-visibility.md
- `get_fact` — Read — https://policylayer.com/tools/com-groundedaeo-grounded-aeo/get-fact.md
- `get_keyword_gap` — Read — https://policylayer.com/tools/com-groundedaeo-grounded-aeo/get-keyword-gap.md
- `get_llms_txt` — Read — https://policylayer.com/tools/com-groundedaeo-grounded-aeo/get-llms-txt.md
- `propose_briefs` — Read — https://policylayer.com/tools/com-groundedaeo-grounded-aeo/propose-briefs.md
- `search_catalog` — Read — https://policylayer.com/tools/com-groundedaeo-grounded-aeo/search-catalog.md
- `generate_free_record` — Write — https://policylayer.com/tools/com-groundedaeo-grounded-aeo/generate-free-record.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=com-groundedaeo-grounded-aeo · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/com-groundedaeo-grounded-aeo