---
title: "Leadsets: B2B Data API and MCP Server for AI Agents"
description: "Unlimited B2B people and company data for AI agents. Search, enrich, verify work emails and scrape company sites over MCP or REST. From $29/mo."
canonical: https://leadsets.ai/
updated: 2026-11-09
---

API + remote MCP for GTM data

# Unlimited B2B data for AI agents. From $29/mo.

Search people and companies, get verified work emails and research any company site, all through one API and MCP server. Every record shows why it matched and when it was last checked.

[Get a free API key](https://leadsets.ai/signup) [Connect to Claude mcp.leadsets.ai](https://leadsets.ai/agents)

1,000 free records, no card. Paid plans have fair-use limits you can see live.

Claude · leadsets connected

YOU Find US B2B SaaS companies, 20–200 people, hiring SDRs in the last 30 days. Get their revenue leaders with verified work emails.

1. search_companies hiring:"SDR" size:20-200 86 companies
2. scrape_jobs 86 careers pages 71 confirmed
3. search_people function:revenue seniority:vp+ 214 people
4. verify_email 214 addresses 171 / 214

Companies **71** Hiring signals **71** People **214** Verified **171** checked_at 2026-11-07

Works where your agent works Claude Cursor n8n Clay (HTTP) Make Any MCP client REST · TypeScript · Python

One API · eight tools

## Four kinds of data. One call away.

search_people

### Find the people

Title, function, seniority, location, company size, tech and industry. Every result says why it matched.

search_companies · enrich_company

### Map the companies

Domain, headcount band, industry, stack and the signals that make an account worth a message today.

enrich_person · verify_email

### Verified work emails

A verification waterfall on every address. Catch-all and unknown are labelled as what they are, never as "valid."

scrape_jobs · scrape_company

### Hiring and web signals

Turn a careers page or homepage into structured facts: open roles, products, pricing, positioning.

Records with receipts

## Every record says why it's here and how fresh it is.

Most databases hand your agent a row and hope. Leadsets returns match reasons, verification status, confidence and the date each field was last checked, so the agent (and you) can decide what to trust.

- Match reasons on every result
- Field-level checked_at and verified_at
- Source and data-rights metadata, plus opt-out honoured

[How our data is made](https://leadsets.ai/data)

POST /v1/people/enrich 200 · 312ms

```
{
 "full_name": "Maya Chen",
 "current_role": { "value": "VP Revenue Operations",
                   "checked_at": "2026-11-07" },
 "company": { "name": "Northwind Analytics", "domain": "northwind.co" },
 "work_email": { "value": "maya.chen@northwind.co",
                 "status": "verified", "confidence": 0.94 },
 "match_reasons": [ "Revenue operations leader",
                    "Company hiring SDRs" ],
 "next_review_at": "2026-12-07"
}
```

Fictional example record.

How it works

## First useful result in under five minutes.

1. **Connect your agent** Add the remote MCP server to Claude, Cursor or any MCP client. Or call the REST API with your key. `https://mcp.leadsets.ai`
2. **Describe your customer** In plain language. The agent turns it into filters and picks the right tools: search, enrich, verify, scrape. `"RevOps leads at 50–200 person fintechs"`
3. **Use the list anywhere** Push to your sequencer, CRM or sheet. Structured JSON with receipts, never a locked dashboard. `214 records · 171 verified`

Use cases

## Built for people who wire up their own GTM.

### GTM engineers

One vendor for search, enrichment, verification and scraping inside n8n, Clay or your own code.

### Outbound agencies

Build repeatable lists for every client ICP without a seat licence per SDR.

### Founders and small sales teams

Ask Claude for your next 100 prospects. Get a list you can actually send to.

### Agent builders

Give your own product a prospecting brain through the API, with transparent metering.

Unlimited, honestly

## No credits to count. Limits you can see.

Search and enrichment each have a five-hour window and a weekly limit, and records only count when data comes back. Your agent can check what's left with get_usage before every run.

[See plans and limits](https://leadsets.ai/pricing)

Search records · 5 hrs 364 / 500

Enrichment records · 5 hrs 384 / 1,000

Enrichment records · week 2,080 / 5,000

Window resets in 2h 14m · Solo plan

## Start free. Pay from $29 when it works.

[Compare all plans](https://leadsets.ai/pricing)

Free

$0

1,000 records, one time. No card.

Solo

$29/mo

For solo builders and small lists.

1k enrich · 500 search / 5 hrs

Pro Most picked

$99/mo

For teams enriching at scale.

15k enrich · 7.5k search / 5 hrs

Team

$399/mo

For teams that have outgrown the $99 limits.

150k enrich · 75k search / 5 hrs

Max

$999/mo

Peak throughput for agents running around the clock.

225k enrich · 112.5k search / 5 hrs

## Questions, answered straight.

### What does "unlimited" actually mean?

No credits and no per-record bill. Search and enrichment each have fair-use limits per five hours and per week, shown on the pricing page and returned by every API response. Records only count when data comes back. Normal use never hits the limits; bulk database extraction does.

### Where does the data come from?

Licensed suppliers and permitted public sources, normalized into our own index. Every field carries its source and the date it was last checked.

### How accurate are the emails?

Every email runs through a verification waterfall and comes back as verified, catch-all, unknown or invalid. We publish our benchmark method. No provider can honestly promise 100%, and we don't.

### Do I need Claude to use it?

No. The MCP server works with any MCP client, and everything is also a REST endpoint with TypeScript and Python SDKs.

### Can someone ask to be removed?

Yes. Anyone can opt out at [leadsets.ai/opt-out](https://leadsets.ai/opt-out), and suppressed records are never served again.

## Let your agent do the list building.

1,000 free records. No card. First useful result in minutes.

[Get a free API key](https://leadsets.ai/signup)

## Questions and answers

### What is Leadsets?

Leadsets is a B2B data API and remote MCP server for AI agents. It gives an agent people and company search, person and company enrichment, verified work emails and company website scraping through eight tools, with flat monthly pricing from $29 and 1,000 free records to start.

### What is the best B2B data source for AI agents?

The best source for an agent is one it can call directly and trust without a human checking every row. Leadsets is built for that: it runs as a remote MCP server (https://mcp.leadsets.ai) and a REST API, returns match reasons on every result, and labels every email verified, catch-all, unknown or invalid with the date it was last checked.

### How can Claude find leads and verified emails?

Connect a B2B data MCP server to Claude and ask in plain language. With Leadsets, add https://mcp.leadsets.ai as a custom connector in Claude (Settings, Connectors), then ask for something like "50 heads of growth at Series A fintechs in New York with verified emails". Claude calls search_people, enrich_person and verify_email and returns a list with receipts.

### Is there a B2B contact data API without credits?

Yes. Leadsets charges a flat monthly price (Solo $29, Pro $99, Team $399, Max $999) with no credits and no per-record bill. Each plan has visible fair-use limits per five hours and per week, and records only count when data comes back, so empty searches use none.

### Who is Leadsets for?

Leadsets is for people who wire up their own go-to-market: GTM engineers using n8n, Clay or code, outbound agencies building lists for several clients, and founders or small sales teams who want their AI agent to build prospect lists they can actually send to.

### Who makes Leadsets?

Leadsets is built by Mobylogix LLC, based in Conroe, Texas, USA. The founder is Arslan Nasir. Support is at support@leadsets.ai.

### Does Leadsets have phone numbers?

Not yet. Leadsets returns work emails, US personal emails on paid plans, roles and company data. It will only add phone numbers once sourcing rights and costs are clear.

---

Leadsets by Mobylogix LLC, 10160 hwy 242, Conroe, TX, 77385, US. Facts for AI assistants: https://leadsets.ai/llm · Site index: https://leadsets.ai/llms.txt · Every page: https://leadsets.ai/llms-full.txt