TheirStack MCP for AI Agents

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with TheirStack MCP or direct API to search job postings, analyze company hiring signals, inspect tech stacks, and enrich sales or recruiting workflows through natural language.

TheirStack logoTheirStack
Api Key

TheirStack is a job posting, company, and technographic data platform. It helps teams find hiring signals, market trends, and account intelligence faster.

10 Tools

Try TheirStack now

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

TOOL ROUTER PLAYGROUND
TheirStack
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TOOLS

Supported Tools

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

Get Credit Balance

Return the connected team's API/UI credit allowances, cumulative usage, and earliest expiration so an agent can budget credit-consuming searches.

Get Credit Consumption

Return daily API and UI credit consumption for an optional time range and timezone to monitor usage trends.

List Company Lists

List company lists available to the connected team, including IDs and company counts, without modifying list membership.

List Datasets

List TheirStack dataset families and whether the connected team is entitled to each one.

List Saved Searches

List saved searches available to the connected team without creating, updating, archiving, or unsubscribing anything.

Search Companies

Search companies by durable identifiers and firmographic, industry, funding, or technology filters.

Search Industries

Find industry names and IDs for company and job filters.

Search Jobs

Search current and historical jobs using a required posting-date or company filter, optionally refined by title, location, seniority, salary, industry, or technology.

Search Keywords

Find TheirStack technology and other semantic keyword slugs.

Search Locations

Resolve place names or country and feature filters to TheirStack location IDs for precise job searches.

SETUP GUIDE

Connect TheirStack MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/openai @ai-sdk/mcp
Install the Composio SDK for Python or TypeScript
2

Initialize Client and Create Tool Router Session

typescript
import { Composio } from '@composio/core';

const composio = new Composio({ apiKey: 'your-api-key' });
const session = await composio.create('your-user-id');
console.log(`Tool Router session created: ${session.mcp.url}`);
Import and initialize the Composio client, then create a Tool Router session for TheirStack
3

Connect to AI Agent

typescript
import { openai } from '@ai-sdk/openai';
import { experimental_createMCPClient as createMCPClient } from '@ai-sdk/mcp';
import { generateText } from 'ai';

const client = await createMCPClient({
  transport: {
    type: 'http',
    url: session.mcp.url,
    headers: {
      'x-api-key': 'your-composio-api-key',
    },
  },
});

const tools = await client.tools();
const { text } = await generateText({
  model: openai('gpt-4o'),
  tools,
  messages: [{
    role: 'user',
    content: 'List companies hiring sales engineers in Europe that mention Salesforce'
  }],
  maxSteps: 5,
});

console.log(`Agent: ${text}`);
Use the MCP server with your AI agent (Anthropic Claude or Mastra)
SETUP GUIDE

Connect TheirStack API Tool with your Agent

1

Install Composio

typescript
npm install @composio/openai
Install the Composio SDK
2

Initialize Composio and Create Tool Router Session

typescript
import OpenAI from 'openai';
import { Composio } from '@composio/core';
import { OpenAIResponsesProvider } from '@composio/openai';

const composio = new Composio({
  provider: new OpenAIResponsesProvider(),
});
const openai = new OpenAI({});
const session = await composio.create('your-user-id');
Import and initialize Composio client, then create a Tool Router session
3

Execute TheirStack Tools via Tool Router with Your Agent

typescript
const tools = session.tools;
const response = await openai.responses.create({
  model: 'gpt-4.1',
  tools: tools,
  input: [{
    role: 'user',
    content: 'Find companies in the United States hiring senior data engineers using Snowflake'
  }],
});
const result = await composio.provider.handleToolCalls(
  'your-user-id',
  response.output
);
console.log(result);
Get tools from Tool Router session and execute TheirStack actions with your Agent

Why Use Composio?

AI Native TheirStack Integration

  • Supports both TheirStack MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable job, company, and technographic queries
  • Rich coverage for finding hiring signals, researching companies, and powering sales or recruiting workflows

Managed Auth

  • Secure API key handling without hard-coding TheirStack credentials in your agent code
  • Central place to manage, scope, and revoke TheirStack access
  • Per user and per environment credentials for safer sales intelligence and recruiting workflows

Agent Optimized Design

  • Tools are tuned using real error and success rates to improve reliability over time
  • Comprehensive execution logs so you always know which TheirStack searches ran, when, and on whose behalf

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access TheirStack
  • Scoped, least privilege access to TheirStack data and enrichment actions
  • Full audit trail of agent actions to support review and compliance
FAQ

Frequently asked questions

Yes, TheirStack requires you to configure your own API key. 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.

Composio is SOC 2 and ISO 27001 compliant with all data encrypted in transit and at rest. Learn more.

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

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