Coresignal MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Coresignal MCP or direct API to search public employee profiles, enrich company research, source candidates, and build sales lead lists through natural language.

Coresignal logoCoresignal
Api Key

Coresignal is a real-time public web data platform for employee, company, and professional profile intelligence. It helps teams access fresh workforce data for research, recruiting, sales, and market analysis.

3 Tools

Try Coresignal now

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

TOOL ROUTER PLAYGROUND
Coresignal
Try asking
TOOLS

Supported Tools

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

Get Real-Time Employee Profile

Retrieve an employee profile, using cached data up to max_age hours old (24 by default); set max_age=0 to request current data.

Fast Search

Turn a natural-language employee, company, or job search into an Elasticsearch query, or return matching preview records.

Search With Reasoning

Run a higher-cost natural-language search that explains its interpretation and can request clarification.

SETUP GUIDE

Connect Coresignal 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: ["coresignal"],
  mcp: true,
});
Create a session scoped to Coresignal 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: "Find current software engineers at fintech companies in Berlin using Coresignal",
  stopWhen: stepCountIs(10),
});

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

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

Run Coresignal tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Find current software engineers at fintech companies in Berlin using Coresignal" }],
});

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

Why Use Composio?

AI Native Coresignal Integration

  • Supports both Coresignal MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable employee and company data searches
  • Rich coverage for querying public professional profiles, company signals, and workforce intelligence

Managed Auth

  • Use auth_configs.create() to configure your Coresignal API key securely
  • Use connected_accounts.link() to connect user or workspace credentials without hard-coding keys
  • Central place to manage, scope, and revoke Coresignal access across agents and environments

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 workforce data was queried, when, and on whose behalf
  • Use mcp.create() or Tool Router sessions to expose Coresignal tools to Claude, ChatGPT, Cursor, and other agents

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access Coresignal
  • Scoped, least privilege access to Coresignal resources and public web data workflows
  • Full audit trail of agent actions to support review, governance, 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, Coresignal 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 Coresignal 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 Coresignal account settings, then paste it once on Composio's connection page. Composio stores it encrypted and uses it only for the Coresignal actions your agent runs. Nobody else in your workspace can read it, and you can revoke it inside Coresignal at any time.

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

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

With Composio, you connect Coresignal 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.

Start with Coresignal.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Coresignal tool your agent needs.Free to start.

Start building