How to integrate WebCrawlerAPI MCP with Hermes

Hermes is a 24/7 autonomous agent that lives on your computer or server — it remembers what it learns and evolves as your usage grows. This guide explains the easiest and most robust way to connect your WebCrawlerAPI account to Hermes. You can do this through either Composio Connect CLI or Composio Connect MCP. For personal use we recommend the CLI, but you won't go wrong with MCP either.

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Api Key

WebCrawlerAPI is a unified API for crawling websites, scraping pages, running AI web agents, and monitoring website feeds. It helps you extract fresh web data without building crawler infrastructure yourself.

10 Tools

Introduction

Hermes is a 24/7 autonomous agent that lives on your computer or server — it remembers what it learns and evolves as your usage grows.

This guide explains the easiest and most robust way to connect your WebCrawlerAPI account to Hermes. You can do this through either Composio Connect CLI or Composio Connect MCP. For personal use we recommend the CLI, but you won't go wrong with MCP either.

Also integrate WebCrawlerAPI with

What is Composio Connect?

Composio Connect is a consumer offering that lets anyone plug 1,000+ applications directly into their agent harness — including Hermes. It can:

  • Search and load tools from relevant toolkits on-demand, reducing context usage.
  • Chain multiple tools to accomplish complex workflows via a remote workbench, without excessive back-and-forth with the LLM.
  • Manage app authentication end-to-end with zero manual overhead.

Integrating WebCrawlerAPI with Hermes

Using Composio Connect CLI

1. Install the Composio CLI

Run the install script directly, or paste https://composio.dev/hermes into your Hermes chat box to have it installed for you.

bash
curl -fsSL https://composio.dev/install | bash
Hermes authenticating with Composio

2. Authenticate

Once the CLI is installed, ask Hermes to authenticate with Composio.

3. Connect to WebCrawlerAPI

Ask your agent to connect to WebCrawlerAPI, or simply request any WebCrawlerAPI-related task. Hermes will prompt you to authenticate and authorize access.

4. Done. You're all set with a new WebCrawlerAPI connection.


Using Composio Connect MCP

1. Get your MCP URL and API Key

Go to dashboard.composio.dev and copy your Connect MCP URL and API key.

Copy MCP URL and API key from Composio dashboard

2. Open the Hermes config file

bash
nano ~/.hermes/config.yaml

3. Add the Composio Connect MCP server

bash
mcp_servers:
  composio:
    url: "https://connect.composio.dev/mcp"
    headers:
      x-consumer-api-key: "YOUR_COMPOSIO_API_KEY"
    connect_timeout: 60
    timeout: 180

Save with Ctrl + O, Enter, then exit with Ctrl + X.

4. Restart your Hermes agent

Once restarted, ask your agent to connect to WebCrawlerAPI or request any WebCrawlerAPI-related task. It will prompt you to authenticate and authorize access.

5. Done!

What is the WebCrawlerAPI MCP server, and what's possible with it?

The WebCrawlerAPI MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your WebCrawlerAPI account. It provides structured and secure access to website crawling, page scraping, monitored feeds, and usage data, so your agent can crawl sites, extract page content, monitor website changes, manage feeds, and review costs on your behalf.

  • Website crawling: Have your agent start site crawls and check their progress, page results, errors, and observed costs.
  • Page scraping and extraction: Direct your agent to scrape a web page and return its content or structured information.
  • Website change monitoring: Let the agent create recurring feeds and review detected changes and recent monitoring activity.
  • Feed management: Instruct your agent to list monitored feeds, inspect their status, pause or resume monitoring, and permanently cancel feeds.
  • Usage and cost tracking: Have your agent check your available balance, request volume, and usage costs for a chosen date range.

Way Forward

With WebCrawlerAPI connected, Hermes can now act on your behalf whenever it detects a relevant task or you ask it to.

From here, you can extend Hermes further:

  • Connect more apps: Calendar, Slack, Notion, Linear, and hundreds of others are available through the same Composio Connect setup. Each new integration compounds what Hermes can do for you.
  • Build workflows across tools: Once multiple apps are connected, Hermes can chain actions together — turn an email into a calendar invite, a Slack message into a Linear ticket, or a meeting note into a follow-up draft.
  • Let it learn your patterns: The more you use Hermes, the better it gets at anticipating how you'd handle recurring tasks. Give it feedback on drafts and decisions, and it will adapt.

If you run into trouble or want to share what you've built, join the community or check out the Docs for deeper configuration options.

TOOLS

Supported Tools

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

Create Crawl

Start a metered asynchronous crawl over a site and return its job ID.

Create Feed

Create a recurring website-change feed.

Delete Feed

Permanently cancel a feed so it cannot be resumed.

Get Crawl Job

Get a crawl job's status, configuration, per-page results, content URLs, errors, and observed costs.

Get Feed

Get one feed's configuration, lifecycle status, and recent run history, including per-run crawl counts and cost.

Get Organization Costs

Return current spendable balance plus request count and USD usage for a date range.

List Feed Changes

Return one page of detected feed changes as structured JSON, with an opaque continuation cursor for older pages.

List Feeds

List active and paused feeds for the connected organization, newest first.

Scrape Page

Scrape one web page synchronously and return requested content or structured extraction.

Set Feed State

Pause an active feed's future scheduled runs or resume a paused feed.

FAQ

Frequently asked questions

With a standalone WebCrawlerAPI MCP server, the agents and LLMs can only access a fixed set of WebCrawlerAPI tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from WebCrawlerAPI and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Hermes fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right WebCrawlerAPI tools.

Yes, absolutely. You can configure which WebCrawlerAPI scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your WebCrawlerAPI data and credentials are handled as safely as possible.

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