CaptureKit MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with CaptureKit MCP or direct API to capture screenshots, extract structured content, crawl pages, and analyze websites through natural language.

CaptureKit logoCaptureKit
Api Key

CaptureKit is a web capture API for screenshots, structured content extraction, crawling, and AI website analysis. Use it to turn live webpages into clean visual and data outputs without building scrapers.

5 Tools

Try CaptureKit now

Type what you want done — sign in and watch it run live in the Tool Router playground.

TOOL ROUTER PLAYGROUND
CaptureKit
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TOOLS

Supported Tools

Every CaptureKit action and event your agent gets out of the box.

Analyze Webpage

Analyze a webpage with AI to identify its summary, value proposition, features, categories, use cases, audience, and optional custom fields.

Capture Webpage

Capture a webpage as an image or PDF and return a downloadable file reference.

Extract Webpage Content

Extract webpage metadata and links, optionally including rendered HTML, Markdown, sitemap data, or cleaned main content.

Fetch Page HTML

Fetch a webpage's raw HTML without browser rendering for fast scraping, audits, or monitoring.

Get Usage

Return the connected workspace's current CaptureKit allowance, usage, API-key status, quotas, and effective rate limits.

SETUP GUIDE

Connect CaptureKit MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/mcp @ai-sdk/openai
Install the Composio SDK and your agent framework
2

Create a session with MCP enabled

typescript
import { Composio } from "@composio/core";

const composio = new Composio();
const { mcp } = await composio.create("your-user-id", {
  toolkits: ["capturekit"],
  mcp: true,
});
Create a session scoped to CaptureKit and read its MCP URL and headers
3

Connect your agent to the MCP server

typescript
import { createMCPClient } from "@ai-sdk/mcp";
import { openai } from "@ai-sdk/openai";
import { generateText, stepCountIs } from "ai";

const client = await createMCPClient({
  transport: { type: "http", url: mcp.url, headers: mcp.headers },
});

const { text } = await generateText({
  model: openai("gpt-5.6-sol"),
  tools: await client.tools(),
  prompt: "Capture a full-page screenshot of https://example.com and return the image URL",
  stopWhen: stepCountIs(10),
});

console.log(text);
await client.close();
Pass the session's MCP URL and headers to your agent and run a CaptureKit request
SETUP GUIDE

Connect CaptureKit API Tool with your Agent

1

Install Composio

typescript
npm install @composio/core @composio/openai openai
Install the Composio SDK, the OpenAI provider, and the OpenAI SDK
2

Create a Composio session

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

const composio = new Composio({ provider: new OpenAIResponsesProvider() });
const client = new OpenAI();

const session = await composio.create("your-user-id", { toolkits: ["capturekit"] });
const tools = await session.tools();
Initialize Composio with the OpenAI Responses provider and create a session scoped to CaptureKit
3

Run CaptureKit tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Capture a full-page screenshot of https://example.com and return the image URL" }],
});

while (response.output.some((o) => o.type === "function_call")) {
  const outputs = await composio.provider.handleToolCalls(session, response.output);
  response = await client.responses.create({
    model: "gpt-5.6-sol",
    tools,
    previous_response_id: response.id,
    input: outputs,
  });
}

console.log(response.output_text);
Send a request, execute the CaptureKit tool calls through the session, and print the final answer

Why Use Composio?

AI Native CaptureKit Integration

  • Supports both CaptureKit MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable screenshot, crawl, and extraction tasks
  • Rich coverage for capturing webpages, parsing content, and running AI website analysis

Managed Auth

  • Bring your CaptureKit API key once; Composio stores and routes it securely
  • Central place to manage, scope, and revoke CaptureKit access
  • Works with auth flows like auth_configs.create(), connected_accounts.link(), and mcp.create() when you need lower-level control

Agent Optimized Design

  • Tools are tuned so agents can choose the right CaptureKit action for screenshots, crawls, or extraction
  • Clear inputs and outputs make webpage analysis easier for language models to reason about
  • Comprehensive execution logs so you always know what ran, when, and on whose behalf

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access CaptureKit
  • Scoped, least privilege access for CaptureKit webpage capture and analysis workflows
  • Full audit trail of agent actions to support review and compliance
FAQ

Frequently asked questions

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

Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.

Yes. Composio is SOC 2 Type II compliant and is built to keep your CaptureKit connection and credentials secure. OAuth tokens and API keys are encrypted, and sensitive customer data is protected at rest and in transit.

Composio also undergoes independent security testing and continuously monitors its systems for security threats. You can review the latest reports and policies in the Composio Trust Center.

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

Create the key in your CaptureKit account settings, then paste it once on Composio's connection page. Composio stores it encrypted and uses it only for the CaptureKit actions your agent runs. Nobody else in your workspace can read it, and you can revoke it inside CaptureKit at any time.

When you connect a CaptureKit account through Composio, every action runs under that account, so anything the agent creates, sends, or changes shows up in CaptureKit as done by you. Keep an approval step in your prompt for actions with side effects, such as sending or deleting, and have the agent draft first.

Whatever the credentials you connect allow inside CaptureKit. If CaptureKit lets you scope a key to specific permissions, create a scoped one so the agent can only do what you intend. You can revoke the key inside CaptureKit at any time.

Yes. Composio supports multiple connected accounts for the same app, and that works in Claude, ChatGPT, or any other assistant you connect through Composio. Give each CaptureKit connection a name such as work or personal, and the assistant uses the one you mention in the request. Each account keeps its own credentials and nothing is merged.

The connection stops working the moment CaptureKit rejects the old key. Create a new key in CaptureKit and reconnect the account from the Composio dashboard or by asking your agent to reconnect CaptureKit. Nothing else changes.

Composio's free Hobby plan includes 100,000 tool calls per month with no credit card, which covers most personal CaptureKit use. Paid plans add higher limits and team features. Your CaptureKit plan and its API limits still apply as usual.

Built-in connectors usually give one AI access to a limited set of apps. Many people use Composio because it lets their AI connect to more apps than it normally supports, or connect to multiple accounts for the same app (e.g. connect Claude to multiple CaptureKit accounts).

With Composio, you connect CaptureKit once and then use it across different AI assistants without setting it up separately in each one. Connect your apps to Composio once, then connect Composio to whichever AI you use, whether that's Claude, ChatGPT, Hermes, or your own custom assistant.

Start with CaptureKit.It takes 30 seconds.

Managed auth, hosted MCP servers, and every CaptureKit tool your agent needs.Free to start.

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