Crawlbase MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Crawlbase MCP or direct API to crawl web pages, manage crawler queues, retrieve stored crawl results, and monitor account usage through natural language.

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Crawlbase is a web crawling API platform for fetching pages, managing crawler queues, storing crawl results, and tracking usage. It helps developers collect web data at scale without building and maintaining crawler infrastructure.

8 Tools

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TOOL ROUTER PLAYGROUND
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TOOLS

Supported Tools

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

Crawl URL

Fetch a public HTTP or HTTPS URL through Crawlbase using the connected Normal token and return its content with separate target and Crawlbase statuses.

Delete Stored Pages

Irreversibly delete explicitly selected pages from Crawlbase Cloud Storage by request ID and return each page's deletion outcome.

Generate User Agents

Generate one to ten realistic randomized User-Agent strings for a selected device class.

Get Crawling Usage

Return current Crawling API usage and optionally previous-month statistics for the connected Crawlbase account.

Get Storage Count

Return the number of pages currently held in Crawlbase Cloud Storage.

Get Stored Page

Retrieve the latest Crawlbase Cloud Storage page by exactly one request ID or original URL.

Get Stored Pages

Retrieve up to 100 Crawlbase Cloud Storage pages by request ID without deleting them.

List Stored Page IDs

Return one page of Crawlbase Cloud Storage request IDs and a short-lived continuation cursor.

SETUP GUIDE

Connect Crawlbase 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: ["crawlbase"],
  mcp: true,
});
Create a session scoped to Crawlbase 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: "Crawl https://example.com and return the page title and main text",
  stopWhen: stepCountIs(10),
});

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

Connect Crawlbase 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: ["crawlbase"] });
const tools = await session.tools();
Initialize Composio with the OpenAI Responses provider and create a session scoped to Crawlbase
3

Run Crawlbase tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Crawl https://example.com and return the page title and main text" }],
});

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 Crawlbase tool calls through the session, and print the final answer

Why Use Composio?

AI Native Crawlbase Integration

  • Supports both Crawlbase MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable crawl requests and queue actions
  • Rich coverage for crawling pages, checking queues, reading stored results, and monitoring usage

Managed Auth

  • Securely store Crawlbase API keys without hard-coding them in your agent code
  • Central place to manage, scope, and revoke Crawlbase access
  • Per user and per environment credentials, so staging and production stay cleanly separated

Agent Optimized Design

  • Crawlbase tools are shaped so language models can pick the right crawl, queue, or result action
  • Tools are tuned using real error and success rates to improve reliability over time
  • Execution logs show what ran, when it ran, and which user triggered the crawl

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access Crawlbase
  • Scoped, least privilege access for crawl requests, stored results, and usage data
  • Full audit trail of agent actions to support review and compliance

Rolling this out across your team?

Give your team centralized access control across every framework with Composio’s MCP Gateway.

EXPLORE MCP GATEWAY
FAQ

Frequently asked questions

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

When you connect a Crawlbase account through Composio, every action runs under that account, so anything the agent creates, sends, or changes shows up in Crawlbase 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 Crawlbase. If Crawlbase 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 Crawlbase 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 Crawlbase 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 Crawlbase rejects the old key. Create a new key in Crawlbase and reconnect the account from the Composio dashboard or by asking your agent to reconnect Crawlbase. Nothing else changes.

Composio's free plan includes 100,000 tool calls per month with no credit card, which covers most personal Crawlbase use. Paid plans add higher limits and team features. Your Crawlbase 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 Crawlbase accounts).

With Composio, you connect Crawlbase 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.

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