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How to connect TinyFish MCP to Claude

Connect Claude Web, Desktop and Cowork to TinyFish MCP. Summarize top hacker news stories, check pricing on competitor websites, and more using natural language, with authentication handled for you.

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TinyFish MCP is an AI-powered browser automation service for browsing, clicking, extracting, and interacting with websites. Use it to run reliable web tasks without hand-writing fragile browser scripts.

20 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your TinyFish account to Claude via Composio Connect, enabling it to summarize top Hacker News stories, check pricing on competitor websites, fill website forms from spreadsheet, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate TinyFish MCP with

Codex

Connecting TinyFish to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your TinyFish account

Back in Claude, ask it to connect to TinyFish or give it any TinyFish-related task.

For example, ask Claude to:

  • "Summarize top Hacker News stories"
  • "Check pricing on competitor websites"
  • "Fill website forms from spreadsheet"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your TinyFish account is ready to use.

What is the TinyFish Claude Connector, and what's possible with it?

The TinyFish MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your TinyFish MCP account. It provides structured and secure access to live web content, browser automations, sessions, monitors, and account usage, so your agent can search the web, fetch page content, run and inspect automations, monitor changes, and review usage on your behalf.

  • Live web research: Have your agent search the web for current information and fetch content from one or more URLs with source details.
  • Browser automation: Direct your agent to click through dynamic pages, complete forms, handle login flows, check progress, and cancel runs when requested.
  • Automation review: Let the agent inspect completed automation steps, find recent runs, and diagnose runs that timed out or returned errors.
  • Browser sessions and monitoring: Instruct your agent to open, list, or close remote browser sessions and monitor webpages or web topics for updates.
  • Usage and wallet checks: Have your agent review search and fetch history, audit usage, and check your TinyFish wallet status.

Troubleshooting

1. Why does Claude not use the Composio connector for TinyFish?

The connector can show as connected, but Claude must use it in each TinyFish conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to TinyFish again.

2. Why does Claude show an MCP server error before TinyFish connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for TinyFish.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect TinyFish.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the TinyFish authorization link not work?

The Composio connector is one server. Your TinyFish account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the TinyFish connection.
  • Composio creates a fresh TinyFish authorization link.
  • Open that link in your browser and finish the TinyFish sign-in.

4. Why do TinyFish actions fail after they worked before?

The TinyFish connection can expire or lose permission.

  • Ask Claude to inspect the TinyFish connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the TinyFish account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in TinyFish.
  • If the action still fails with a permission error, check that the connected account has that permission in TinyFish itself.

5. How do I switch to a different TinyFish account?

Claude can manage the TinyFish connection for you.

  • Ask Claude to disconnect or delete the current TinyFish account.
  • Ask Claude to connect TinyFish again.
  • Open the new Composio authorization link for TinyFish.
  • Sign in with the other TinyFish account in the browser.
  • After the account connects, ask Claude to retry the TinyFish task.

6. Why is my TinyFish connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your TinyFish connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If TinyFish tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect TinyFish.
TOOLS

Supported Tools

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

Batch cancel

Only use when the user explicitly asks to stop multiple running or pending automations.

Batch status

Only use after batch_create to poll progress for multiple automation runs.

Cancel run

Only use when the user explicitly asks to stop a running or pending automation.

Close browser session

Only use when the user explicitly wants to stop or close a remote browser session.

Create browser session

For direct browser control or visual QA, open a browser session through your wallet account.

Create monitor

Use when the user asks to monitor a webpage for changes or subscribe to updates about a web topic.

Discover run

App-only tool for discovering the currently running automation for this session.

Fetch content

Default, free, and most token-efficient tool for reading URL(s) and extracting source details.

Get run

Only use after run_web_automation errors, times out, or returns a run_id that needs polling.

Get search usage

Only use when the user asks to review search history, check what queries were made, or audit usage.

Get steps

Only use when the user asks to inspect how an automation ran.

Get wallet

Read-only.

Guide next step

Returns the next interactive TinyFish onboarding step based on the user’s real usage.

List browser sessions

Only use when the user asks to check active browser sessions, review browser usage history, or find a specific browser session by ID.

List fetch usage

Only use when the user asks to review fetch history or audit fetch usage.

List runs

Only use when you need to find a run_id for a recently created automation, usually after run_web_automation timed out before returning one.

Poll status

App-only tool for polling the current status of an automation run.

Run web automation

Metered web automation is available through your wallet — use it for clicking, forms, login, or dynamic pages.

Run web automation async

⚠️ ONLY call this tool when the user has EXPLICITLY said they want to run the task in the background (e.

Search

Default, free, and most token-efficient first tool for external knowledge and web grounding.

FRAMEWORKS

How to build TinyFish MCP Agent with another framework

Codex logo

Codex

Use TinyFish MCP with Codex

FAQ

Frequently asked questions

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

Yes, you can. Claude Cowork 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 TinyFish tools.

Yes, absolutely. You can configure which TinyFish 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 TinyFish data and credentials are handled as safely as possible.

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