# lookup_builtwith

Detect the tech stack of a website (frameworks, analytics, CMS, hosting). Use for competitive analysis and lead enrichment. Example call: {"domain": "stripe.com"} Cost: $0.005–$0.05 USDC on Base per call.

Agent View of the PolicyLayer registry record for `lookup_builtwith`. HTML page: https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/lookup-builtwith

## Facts

- Tool: `lookup_builtwith`
- Server: GoCreative Agent API (`https://api.gocreativeai.com/mcp`) — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api.md
- Homepage: https://github.com/https://api.gocreativeai.com/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": "lookup_builtwith",
    "arguments": {
      "domain": "<domain>"
    }
  }
}
```

## Why lookup_builtwith is rated Low

lookup_builtwith is a straightforward reconnaissance/lookup tool that queries and returns information about website technologies. It retrieves data without modifying any target system, executing code on external systems, or causing destructive effects.

From the tool's own definition: "Tool performs tech stack detection on domains ('frameworks, analytics, CMS, hosting') with example call taking only a domain parameter."

## Use case

AI agents call lookup_builtwith to retrieve information from GoCreative Agent API 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 GoCreative Agent API:

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

## Other tools on GoCreative Agent API (171)

- `ai_ask` — Financial — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/ai-ask.md
- `enrich_browserbase` — Financial — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/enrich-browserbase.md
- `lookup_credit_card_validate` — Financial — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/lookup-credit-card-validate.md
- `lookup_lighthouse` — Financial — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/lookup-lighthouse.md
- `lookup_qr_code` — Financial — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/lookup-qr-code.md
- `lookup_uuid` — Financial — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/lookup-uuid.md
- `scrape_firefoxstore` — Financial — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/scrape-firefoxstore.md
- `ai_pro` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/ai-pro.md
- `ai_ultra` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/ai-ultra.md
- `audit_github` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/audit-github.md
- `bundle_company_360` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/bundle-company-360.md
- `bundle_crypto_360` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/bundle-crypto-360.md
- `bundle_dev_360` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/bundle-dev-360.md
- `bundle_device_360` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/bundle-device-360.md
- `bundle_diligence_360` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/bundle-diligence-360.md
- `bundle_domain_360` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/bundle-domain-360.md
- `bundle_drug_360` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/bundle-drug-360.md
- `bundle_email_360` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/bundle-email-360.md
- `bundle_kyb_360` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/bundle-kyb-360.md
- `bundle_regulatory_360` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/bundle-regulatory-360.md
- `bundle_repo_360` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/bundle-repo-360.md
- `bundle_risk_360` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/bundle-risk-360.md
- `bundle_sales_intent` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/bundle-sales-intent.md
- `bundle_sec_360` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/bundle-sec-360.md
- `data_clinical_trials` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/data-clinical-trials.md
- `data_ip_threat` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/data-ip-threat.md
- `data_sanctions_screen` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/data-sanctions-screen.md
- `enrich_apify` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/enrich-apify.md
- `enrich_browsersnap` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/enrich-browsersnap.md
- `enrich_company` — Read — https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api/enrich-company.md
- …and 141 more: https://policylayer.com/tools/io-github-colinhughes2121-gocreative-agent-api.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=io-github-colinhughes2121-gocreative-agent-api · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-colinhughes2121-gocreative-agent-api