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How to connect ContactOut MCP with ChatGPT

Connect ChatGPT to ContactOut MCP. Find contact emails for acme marketing team, enrich profile for john smith, ceo, and more using natural language, with authentication handled for you.

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ContactOut is a professional profile enrichment and contact discovery API. Find and verify email addresses to power recruiting, sales, and outreach.

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How to connect ContactOut MCP with ChatGPT

ChatGPT can take action across your apps and files, stay with a project for hours, and turn a goal into finished materials like sheets, slides, and docs, not just answers.

In this guide, I will explain the easiest and most secure way to connect your ContactOut account to ChatGPT via Composio Connect, so it can discover contacts, enrich profiles, verify emails, manage outreach campaigns, and generate usage reports through natural language commands without ever putting your account credentials at risk.

Also integrate ContactOut with

Claude CoworkHermesAtomic Agent

Why use Composio over default connectors?

  • Apps with read and write access. Default connectors mostly can read your data. Composio's ContactOut integration lets ChatGPT take actions like creating drafts, sending updates, labeling records, and more.
  • 1,500+ SaaS toolkits out of the box. Composio gives you instant access to a vast catalog of pre-built connectors, from Gmail and Slack to Notion, Linear, and Salesforce.
  • One MCP server for every app. Connect any of your applications on demand through a single endpoint, rather than juggling a separate server for each app.
  • Smart, context-aware tool loading. Unlike traditional MCP servers that dump every available tool into the LLM context window, Composio searches for and loads only the tools relevant to the task at hand.
  • Cross-app automation. Chain actions across multiple apps in a single run - fetch a thread, summarize it in Notion, and post highlights to Slack without leaving the conversation.

Prerequisites

Note: Composio connects through OAuth. You will be asked to sign in and approve specific permissions. Review the permission screen carefully if you are using a work account.

Step-by-step: Connect ContactOut to ChatGPT

1. Install the Composio plugin

Click the button. ChatGPT opens the Composio plugin page. Click Install plugin.

Install in ChatGPT

Composio plugin page in ChatGPT with the Install plugin button

You can also find it inside ChatGPT: go to Settings, open Plugins, search the marketplace for Composio, and click Install plugin.

2. Authenticate

After you install, ChatGPT asks you to authenticate with Composio. Log in and click Allow access to authorize ChatGPT to use your Composio account.

Composio login and Allow access screen for ChatGPT

3. Start using Composio

That is it. Composio tools are now available in ChatGPT. Type @Composio followed by your request, for example @Composio find unread ContactOut messages and summarize them, and it will run the actions you authorize. On first use it asks you to authorize ContactOut.

Option 2: Add Composio as an MCP server

If you cannot use the plugin marketplace, add Composio as a custom MCP server instead.

1. Open the MCP settings

In ChatGPT, go to Settings and open the Plugins section. Inside the Plugins page, click the MCP tab.

ChatGPT settings showing the Plugins page with the MCP tab selected

2. Add the server

Click Add server. In the Name field enter Composio, for Type select Streamable HTTP, and in the URL field paste the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
ChatGPT Add server dialog with the name Composio, type Streamable HTTP, and the Composio MCP URL

Then click Save. The Composio server now appears in your MCP plugins list.

ChatGPT Plugins page showing the Composio MCP server added to the list

3. Authenticate

Click Authenticate on the Composio entry, log in via Composio, and click Allow access. Composio tools are then available in ChatGPT the same way as with the plugin.

What you can do after connecting ContactOut

  • Find contact emails for Acme marketing team
  • Enrich profile for John Smith, CEO
  • Verify emails for this candidate list

Security + privacy notes (important)

  • Use least-privilege access: Only grant permissions you actually need.
  • Review OAuth permissions before approving: Make sure requested scopes match what you expect Composio and ChatGPT to do.
  • Keep write actions human-reviewed: For actions like sending messages, creating labels, or editing drafts, keep manual confirmation enabled.
  • Be careful with sensitive data: Avoid using this setup with highly sensitive information unless allowed by your personal, company, or client policies.
TOOLS

Supported Tools

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

Add Campaign Recipients

Add 1-100 recipients to an existing campaign.

Check LinkedIn Contact Availability

Check whether a LinkedIn profile has a personal email, work email, or phone without revealing it or consuming credits.

Count People

Estimate matching people and available personal emails, work emails, and phones from substantive People Search filters without consuming credits.

Create Bulk Email Verification Job

Queue asynchronous deliverability verification for 1-100 email addresses, optionally delivering results to an HTTP or HTTPS callback URL; may consume verifier credits.

Create LinkedIn Contact Info Batch Job

Queue asynchronous contact discovery for 1-1000 LinkedIn profiles, optionally delivering results to a callback URL; may consume credits per profile.

Enrich Companies by Domain

Return company profiles for 1-30 domains; each found company consumes a search credit.

Enrich LinkedIn Profile

Return a professional profile for a regular LinkedIn profile URL, optionally including contact data; may consume search, email, and phone credits.

Enrich Person

Find and enrich one person using a LinkedIn URL, email, or phone; alternatively, provide a name plus employer, education, location, or job-title evidence.

Enrich Person by Email

Return a professional profile matched from an email address, optionally requesting real-time work-email verification.

Find LinkedIn Profile by Email

Resolve an email address to its matching LinkedIn profile URL.

Get API Usage Stats

Return ContactOut API credit usage and quotas for a billing month.

Get Bulk Email Verification Job

Get the status and available per-email results of an asynchronous bulk email-verification job.

Get Campaign

Return one campaign's sequence steps and optionally its performance statistics.

Get Hashed Email Identifiers

Return unordered SHA-256 hashes of normalized personal emails found for 5-100 distinct LinkedIn profiles.

Get LinkedIn Contact Info

Reveal email and optionally phone contact information for one regular LinkedIn profile URL; consumes credits when data is found.

Get LinkedIn Contact Info Batch

Synchronously reveal contact information for 1-100 LinkedIn profiles; may consume email and phone credits per profile.

Get LinkedIn Contact Info Batch Job

Get the status and available results of an asynchronous LinkedIn contact-info batch job.

List Campaigns

Return one page of email campaigns and their lifecycle statuses.

List Decision Makers

Return one page of key decision makers for the best-matching company.

Remove Campaign Recipients

Destructively remove 1-100 recipients from an existing campaign by email.

Search Companies

Return one page of companies matching identity, size, location, industry, technology, revenue, or founding-year filters.

Search People

Return one page of professional profiles matching person, role, employer, education, location, and contact-availability filters.

Start Campaign

Start a draft ContactOut campaign or resume a stopped campaign.

Stop Campaign

Stop a running ContactOut campaign, interrupting its outreach.

Verify Email

Check one email address for valid, invalid, accept-all, disposable, or unknown deliverability.

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FAQ

Frequently asked questions

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

Yes, you can. ChatGPT 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 ContactOut tools.

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

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