MoltSets MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with MoltSets MCP or direct API to search people and companies, enrich profiles, discover emails and mobile numbers, and resolve advertising identities through natural language.

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Api Key

MoltSets is a data platform for people and company search, enrichment, and identity resolution. It helps teams discover accurate contact details and account usage data.

20 Tools

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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 MoltSets action and event your agent gets out of the box.

Enrich LinkedIn Profile

Resolve a LinkedIn profile URL into a sparse full person and company profile, optionally including experience.

Find Best Email by LinkedIn

Find the best validated email for one LinkedIn profile or a batch of up to 100, preferring business email and falling back to sensitive personal email.

Find Best US Personal Email by LinkedIn

Find the highest-confidence validated sensitive personal email for one US LinkedIn profile or a batch of up to 100.

Find Business Email by LinkedIn

Find a validated corporate email, without personal-email fallback, for one LinkedIn profile or a batch of up to 100.

Find Business Email by Name

Find a validated business email and matched LinkedIn URL from a person's name and company/domain.

Find Business Profile by Name

Find a sparse full person and company profile from a person's name and company or domain, optionally including experience.

Find Company by IP

Resolve a B2B visitor IPv4 address to associated company domains and provider percentages.

Find Email Hashes by LinkedIn

Retrieve sensitive ad-audience match keys for one LinkedIn profile URL or slug: at most one business and one personal email hash in both SHA256 and MD5 formats.

Find LinkedIn by Email

Resolve one email address to the highest-confidence LinkedIn profile URL available from MoltSets.

Find LinkedIn Profile

Find matching person or company LinkedIn profiles from a person's name and company/domain.

Find Mobile Advertising ID by Email

Resolve one email address to at most one highly sensitive Mobile Advertising ID (MAID), such as an Android AAID or Apple IDFA, for advertising audience matching and cross-device targeting.

Find Mobile Phone by LinkedIn

Find sensitive carrier-verified mobile data for one LinkedIn profile or a batch of up to 100.

Find Personal Email Hash by Business Email

Convert one business email into one sensitive SHA-256-hashed personal-email match key for customer-match and paid-advertising audiences.

Find US Personal Email by LinkedIn

Find a validated sensitive personal email for one US LinkedIn profile or a batch of up to 100.

Get Account

Safely read the connected MoltSets account, plan capabilities, token and phone-token balances, and live Fair Use headroom before paid or plan-restricted discovery.

Get Billing

Get billing-sensitive plan and subscription dates, token balance, unlimited status, and per-tool token costs.

Get Usage

Get daily and aggregate API calls, tokens, found-data, no-data, and failed counts for today, week, month, or the billing cycle.

Reverse Lookup Email

Resolve one email or a batch of up to 100 into a sensitive sparse person and business profile, including company firmographics, LinkedIn URLs, confirmed work email, and personal emails on file.

Search Companies

Search ranked companies by name or domain, firmographics, industry, and location.

Search People

Search ranked people and current companies with positive and exclusion filters.

SETUP GUIDE

Connect MoltSets 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: ["moltsets"],
  mcp: true,
});
Create a session scoped to MoltSets 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 and enrich the profile for Jane Doe at Acme Corporation, including her work email and mobile number.",
  stopWhen: stepCountIs(10),
});

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

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

Run MoltSets tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Find and enrich the profile for Jane Doe at Acme Corporation, including her work email and mobile number." }],
});

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

Why Use Composio?

AI Native MoltSets Integration

  • Supports both MoltSets MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable people, company, and identity searches
  • Rich coverage for profile enrichment, contact discovery, and account usage queries

Managed Auth

  • Securely store and use your MoltSets API key without exposing it to agents
  • Central place to manage, scope, and revoke MoltSets 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 MoltSets
  • Scoped, least privilege access to MoltSets 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, MoltSets 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.

Yes. Composio is SOC 2 Type II compliant and is built to keep your MoltSets 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 MoltSets account settings, then paste it once on Composio's connection page. Composio stores it encrypted and uses it only for the MoltSets actions your agent runs. Nobody else in your workspace can read it, and you can revoke it inside MoltSets at any time.

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

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

With Composio, you connect MoltSets 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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