Fullenrich MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Fullenrich MCP or direct API to enrich leads, find verified emails, lookup phone numbers, and streamline sales prospecting through natural language.

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Api Key

FullEnrich is a B2B contact enrichment platform that aggregates emails and phone numbers from 15+ data vendors. Instantly find and verify lead contact data to boost your outreach.

9 Tools

Try Fullenrich now

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

TOOL ROUTER PLAYGROUND
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TOOLS

Supported Tools

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

Create Contact Data List

Tool to create a list of contact data entries.

Get current credit balance

Tool to retrieve current workspace credit balance.

Get Bulk Enrichment Result

Tool to retrieve results of a bulk enrichment by enrichment ID.

Get Reverse Email Result

Tool to retrieve results from a reverse email lookup operation using reverse email ID.

Reverse Email Lookup

Tool to perform bulk reverse email lookup to retrieve full person and company profile from work or personal email addresses.

Search Company

Tool to search for companies based on filters including name, domain, industry, type, headquarters location, headcount, and founded year.

Search People

Tool to search for people based on filters including company, location, skills, position titles, and seniority levels.

Start Bulk Enrichment

Tool to start a bulk enrichment job.

Verify API Key

Tool to check if your API key is valid and return the associated workspace ID.

SETUP GUIDE

Connect Fullenrich 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: ["fullenrich"],
  mcp: true,
});
Create a session scoped to Fullenrich 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: "Enrich email and phone for company leads from uploaded CSV",
  stopWhen: stepCountIs(10),
});

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

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

Run Fullenrich tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Enrich email and phone for company leads from uploaded CSV" }],
});

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

Why Use Composio?

AI Native Fullenrich Integration

  • Supports both Fullenrich MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable tool execution
  • Rich coverage for reading, writing, and querying your Fullenrich data

Managed Auth

  • Built-in API key handling with secure storage
  • Central place to manage, scope, and revoke Fullenrich access
  • Per user and per environment credentials instead of hard-coded keys

Agent Optimized Design

  • Tools are tuned using real error and success rates to improve reliability over time
  • 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 Fullenrich
  • Scoped, least privilege access to Fullenrich resources
  • 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, Fullenrich 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 Fullenrich 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 Fullenrich account settings, then paste it once on Composio's connection page. Composio stores it encrypted and uses it only for the Fullenrich actions your agent runs. Nobody else in your workspace can read it, and you can revoke it inside Fullenrich at any time.

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

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

With Composio, you connect Fullenrich 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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