# Builtwith

```json
{
  "name": "Builtwith",
  "slug": "builtwith",
  "url": "https://composio.dev/toolkits/builtwith",
  "markdown_url": "https://composio.dev/toolkits/builtwith.md",
  "logo_url": "https://logos.composio.dev/api/builtwith",
  "categories": [
    "data & analytics"
  ],
  "is_composio_managed": false,
  "updated_at": "2026-05-12T10:04:33.869Z"
}
```

![Builtwith logo](https://logos.composio.dev/api/builtwith)

## Description

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Builtwith MCP or direct API to analyze website technologies, generate detailed site tech reports, track tech adoption trends, and enrich company prospect data through natural language.

## Summary

BuiltWith is a web technology profiler that uncovers the technologies powering any website. Gain actionable insights into analytics, hosting, and content management stacks for smarter research and lead generation.

## Categories

- data & analytics

## Toolkit Details

- Tools: 10

## Images

- Logo: https://logos.composio.dev/api/builtwith

## Authentication

- **Api Key**
  - Type: `api_key`
  - Description: Api Key authentication for BuiltWith.
  - Setup:
    - Configure Api Key credentials for BuiltWith.
    - Use the credentials when creating an auth config in Composio.

## Suggested Prompts

- Get all websites using Shopify in 2024
- Show historical tech changes for example.com
- Find online stores selling Nike shoes
- List domains with similar tech to airbnb.com

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `BUILTWITH_CREATE_DOMAIN_LIST_FILE` | Create Domain List File | Tool to create a TXT or ZIP file from a list of domains. Use when preparing a domain list for bulk or firehose lookups. |
| `BUILTWITH_DATASETS_LOOKUP` | Datasets Lookup | Tool to access mass Internet technology usage information from 2000 to today. Use when you need historical technology usage trends for a domain. |
| `BUILTWITH_DOMAIN_API_LOOKUP` | Domain API Lookup | Tool to retrieve current and historical technology information of a website. Use after confirming the domain to lookup. |
| `BUILTWITH_FINANCIAL_API_LOOKUP` | Financial API Lookup | Tool to fetch financial data for a domain. Use when you need company financials for US or UK registered websites. |
| `BUILTWITH_FREE_API_LOOKUP` | Free API Lookup | Tool to access last updated dates and counts for technology groups and categories for websites. Use when you need a snapshot of technology usage timing for a domain. |
| `BUILTWITH_LISTS_API_GET_LIST` | Lists API Get List | Tool to retrieve a list of websites using a specific technology. Use when you want to find sites leveraging a particular tech. |
| `BUILTWITH_PRODUCT_API_LOOKUP` | Product API Lookup | Tool to find websites selling specific eCommerce products. Use when you need to discover online retailers offering a given product name or query a domain's product listings (e.g., 'dom:jbhifi.com.au'). |
| `BUILTWITH_RECOMMENDATIONS_API_LOOKUP` | Recommendations API Lookup | Tool to generate a list of websites with similar technology profiles. Use when you need technology recommendations for a given domain lookup. |
| `BUILTWITH_REDIRECTS_API_LOOKUP` | Redirects API Lookup | Tool to retrieve live and historical redirects for a website. Use after confirming the exact root domain to gather inbound and outbound redirect timelines. |
| `BUILTWITH_SOCIAL_API_LOOKUP` | Social API Lookup | Tool to retrieve domains associated with social media profile URLs. Use when you need to map social profiles to root domains. |

## Supported Triggers

None listed.

## Installation and MCP Setup

### Path 1: SDK Installation

#### Path 1, Step 1: Install Composio

Install the Composio SDK
```python
pip install composio_openai
```

```typescript
npm install @composio/openai
```

#### Path 1, Step 2: Initialize Composio and Create Tool Router Session

Import and initialize Composio client, then create a Tool Router session
```python
from openai import OpenAI
from composio import Composio
from composio_openai import OpenAIResponsesProvider

composio = Composio(provider=OpenAIResponsesProvider())
openai = OpenAI()
session = composio.create(user_id='your-user-id')
```

```typescript
import OpenAI from 'openai';
import { Composio } from '@composio/core';
import { OpenAIResponsesProvider } from '@composio/openai';

const composio = new Composio({
  provider: new OpenAIResponsesProvider(),
});
const openai = new OpenAI({});
const session = await composio.create('your-user-id');
```

#### Path 1, Step 3: Execute Builtwith Tools via Tool Router with Your Agent

Get tools from Tool Router session and execute Builtwith actions with your Agent
```python
tools = session.tools
response = openai.responses.create(
  model='gpt-4.1',
  tools=tools,
  input=[{
    'role': 'user',
    'content': 'Show all technologies used by github.com'
  }]
)
result = composio.provider.handle_tool_calls(
  response=response,
  user_id='your-user-id'
)
print(result)
```

```typescript
const tools = session.tools;
const response = await openai.responses.create({
  model: 'gpt-4.1',
  tools: tools,
  input: [{
    role: 'user',
    content: 'Show all technologies used by github.com'
  }],
});
const result = await composio.provider.handleToolCalls(
  'your-user-id',
  response.output
);
console.log(result);
```

### Path 2: MCP Server Setup

#### Path 2, Step 1: Install Composio

Install the Composio SDK and Claude Agent SDK
```python
pip install composio claude-agent-sdk
```

```typescript
npm install @composio/core ai @ai-sdk/openai @ai-sdk/mcp
```

#### Path 2, Step 2: Create Tool Router Session

Initialize the Composio client and create a Tool Router session
```python
from composio import Composio
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions

composio = Composio(api_key='your-composio-api-key')
session = composio.create(user_id='your-user-id')
url = session.mcp.url
```

```typescript
import { Composio } from '@composio/core';

const composio = new Composio({ apiKey: 'your-api-key' });

console.log("Creating Tool Router session...");
const { mcp } = await composio.create('your-user-id');
console.log(`Tool Router session created: ${mcp.url}`);
```

#### Path 2, Step 3: Connect to AI Agent

Use the MCP server with your AI agent
```python
import asyncio

options = ClaudeAgentOptions(
    permission_mode='bypassPermissions',
    mcp_servers={
        'tool_router': {
            'type': 'http',
            'url': url,
            'headers': {
                'x-api-key': 'your-composio-api-key'
            }
        }
    },
    system_prompt='You are a helpful assistant with access to Builtwith tools.',
    max_turns=10
)

async def main():
    async with ClaudeSDKClient(options=options) as client:
        await client.query('Retrieve technology stack for shopify.com')
        async for message in client.receive_response():
            if hasattr(message, 'content'):
                for block in message.content:
                    if hasattr(block, 'text'):
                        print(block.text)

asyncio.run(main())
```

```typescript
import { openai } from '@ai-sdk/openai';
import { experimental_createMCPClient as createMCPClient } from '@ai-sdk/mcp';
import { generateText, stepCountIs } from 'ai';

const client = await createMCPClient({
  transport: {
    type: 'http',
    url: mcp.url,
    headers: { 'x-api-key': 'your-composio-api-key' }
  }
});

const tools = await client.tools();

const { text } = await generateText({
  model: openai('gpt-4o'),
  tools,
  messages: [{ role: 'user', content: 'Retrieve technology stack for shopify.com' }],
  stopWhen: stepCountIs(5)
});

console.log(`Agent: ${text}`);
```

## Why Use Composio?

### 1. AI Native Builtwith Integration

- Supports both Builtwith MCP and direct API based integrations
- Structured, LLM-friendly schemas for reliable tool execution
- Rich coverage for profiling and analyzing website tech stacks

### 2. Managed Auth

- Seamless API key management for Builtwith access
- Central place to manage, scope, and revoke Builtwith credentials
- Per-user, per-environment credential isolation—no more hard-coded keys

### 3. Agent Optimized Design

- Tools tuned for high reliability and consistent results
- Built-in logs so you know what websites were analyzed and when

### 4. Enterprise Grade Security

- Fine-grained RBAC controls for Builtwith tool access
- Scoped, least-privilege API key usage
- Comprehensive audit trail for all AI-powered tech stack lookups

## Use Builtwith with any AI Agent Framework

Choose a framework you want to connect Builtwith with:

- [OpenAI Agents SDK](https://composio.dev/toolkits/builtwith/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/builtwith/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/builtwith/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/builtwith/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/builtwith/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/builtwith/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/builtwith/framework/hermes-agent)
- [CLI](https://composio.dev/toolkits/builtwith/framework/cli)
- [Google ADK](https://composio.dev/toolkits/builtwith/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/builtwith/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/builtwith/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/builtwith/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/builtwith/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/builtwith/framework/crew-ai)
- [Pydantic AI](https://composio.dev/toolkits/builtwith/framework/pydantic-ai)
- [AutoGen](https://composio.dev/toolkits/builtwith/framework/autogen)

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- [Agentql](https://composio.dev/toolkits/agentql) - Agentql is a toolkit that connects AI agents to the web using a specialized query language. It enables structured web interaction and data extraction for smarter automations.
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- [Ambient weather](https://composio.dev/toolkits/ambient_weather) - Ambient Weather is a platform for personal weather stations with a robust API for accessing local, real-time, and historical weather data. Get detailed environmental insights directly from your own sensors for smarter apps and automations.
- [Anonyflow](https://composio.dev/toolkits/anonyflow) - Anonyflow is a service for encryption-based data anonymization and secure data sharing. It helps organizations meet GDPR, CCPA, and HIPAA data privacy compliance requirements.
- [Api ninjas](https://composio.dev/toolkits/api_ninjas) - Api ninjas offers 120+ public APIs spanning categories like weather, finance, sports, and more. Developers use it to supercharge apps with real-time data and actionable endpoints.
- [Api sports](https://composio.dev/toolkits/api_sports) - Api sports is a comprehensive sports data platform covering 2,000+ competitions with live scores and 15+ years of stats. Instantly access up-to-date sports information for analysis, apps, or chatbots.
- [Apify](https://composio.dev/toolkits/apify) - Apify is a cloud platform for building, deploying, and managing web scraping and automation tools called Actors. It lets you automate data extraction and workflow tasks at scale—no infrastructure headaches.
- [Autom](https://composio.dev/toolkits/autom) - Autom is a lightning-fast search engine results data platform for Google, Bing, and Brave. Developers use it to access fresh, low-latency SERP data on demand.
- [Beaconchain](https://composio.dev/toolkits/beaconchain) - Beaconchain is a real-time analytics platform for Ethereum 2.0's Beacon Chain. It provides detailed insights into validators, blocks, and overall network performance.
- [Big data cloud](https://composio.dev/toolkits/big_data_cloud) - BigDataCloud provides APIs for geolocation, reverse geocoding, and address validation. Instantly access reliable location intelligence to enhance your applications and workflows.
- [Bigpicture io](https://composio.dev/toolkits/bigpicture_io) - BigPicture.io offers APIs for accessing detailed company and profile data. Instantly enrich your applications with up-to-date insights on 20M+ businesses.
- [Bitquery](https://composio.dev/toolkits/bitquery) - Bitquery is a blockchain data platform offering indexed, real-time, and historical data from 40+ blockchains via GraphQL APIs. Get unified, reliable access to complex on-chain data for analytics, trading, and research.
- [Brightdata](https://composio.dev/toolkits/brightdata) - Brightdata is a leading web data platform offering advanced scraping, SERP APIs, and anti-bot tools. It lets you collect public web data at scale, bypassing blocks and friction.
- [Byteforms](https://composio.dev/toolkits/byteforms) - Byteforms is an all-in-one platform for creating forms, managing submissions, and integrating data. It streamlines workflows by centralizing form data collection and automation.
- [Cabinpanda](https://composio.dev/toolkits/cabinpanda) - Cabinpanda is a data collection platform for building and managing online forms. It helps streamline how you gather, organize, and analyze responses.

## Frequently Asked Questions

### Do I need my own developer credentials to use Builtwith with Composio?

Yes, Builtwith requires you to configure your own API key credentials. Once set up, Composio handles secure credential storage and API request handling for you.

### Can I use multiple toolkits together?

Yes! Composio's Tool Router enables agents to use multiple toolkits. [Learn more](https://docs.composio.dev/tool-router/overview).

### Is Composio secure?

Composio is SOC 2 and ISO 27001 compliant with all data encrypted in transit and at rest. [Learn more](https://trust.composio.dev).

### What if the API changes?

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

---
[See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)