ByKeirolabs· the most accurate web API for agents
People & company data API·by Keirolabs

Your AI agent is now your expert SDR

Your agent finds the right buyers, gets their verified work emails and spots the companies on your site, inside Claude, Codex and Cursor.

Onboard your agent with one prompt

Install the acquiresure MCP server by following https://api.acquiresure.cloud/mcpinstall.md. My API key is <your key>.

Works in Claude Code, Codex, Cursor, Gemini CLI, Hermes, Windsurf, GitHub Copilot, OpenCode, Cline and more.

How it works

Connect once, then brief your agent like a teammate. It does the prospecting and you only pay for what it finds.

  1. Paste one prompt into Claude, Codex, Cursor, Hermes or any MCP agent. It reads our install guide and adds acquiresure to itself.

  2. Brief it like a teammate: “Series A fintechs in New York hiring salespeople.” It searches companies by funding, headcount, industry, location and tech.

  3. It finds the right person at each company, the Head of Sales, the CTO, the founder, with their title and profile.

  4. It unlocks each work email and checks it before anything is sent. You only pay when an email is found.

  5. Your agent drafts a personal intro for each person and sends it with your own email tools, or hands you the list as a CSV.

See It in Action

Add acquiresure to the agent you already use in under a minute, then just ask.

Settings - Claude
Inbox
‹ ›
claude.ai/settings/connectors
M

Settings

  • General
  • Account
  • Privacy
  • Billing
  • Capabilities
  • Connectors
  • Claude Code

Connectors

Allow Claude to reference other apps and services for more context.

Google Drive

Connect

Gmail

Connect

GitHub

Connect
Add custom connector

Add custom connector

Connect Claude to your data and tools.

Name

Remote MCP server URL

Advanced settings

CancelAdd

Illustrative walkthrough. Companies and people shown are examples. Claude is a trademark of Anthropic; Hermes Agent is by Nous Research.

Crunchbase-Level
Company Data

Every lead arrives with its company fully profiled: funding, headcount and growth, revenue, location, traffic and the tools it runs. Filter by any of it, or let your agent use it to pick who to email first.

Northwind Labs

northwind.io

Example profile
Industry
Financial software
Headcount
850 · +12% this year
Revenue
$50M–100M
Funding
$120M total · Series C, 2025
Headquarters
Austin, Texas
Founded
2016
Web traffic
1.2M visits a month
Tech stack
HubSpot, Stripe, Segment, Next.js
Illustrative company. Every field shown is returned with real leads, alongside 100+ search filters.

300M+ People and the
Companies They Work At

Search by title, seniority, skills, location, company, industry and funding, with verified work emails one call away. The data is refreshed every two days, so your agent reaches people where they work now.

  • 300M+

    Professional contacts

  • 100+

    Search filters

  • 2 days

    Between data refreshes

From the house ofKeirolabsmakers of Keiro, the web search API for agents that scores 96% on SimpleQA

Then It Sends
the Emails Too

Found the leads? Ask your agent to email them. It drafts the outreach, shows you, then sends from your own inbox and follows up until they reply. Prospecting, verified emails and sending, in one chat.

SF compliance CTOs

15 people · from jane@acme.com · Mon–Fri, 9–5

Example campaign
  1. Tue · 09:30 their time

    Quick one, Maya

    Hi Maya, congrats on the Series A. Saw you're hiring two SDRs, so…

  2. 2 days later · 14:00

    Follow-up, same thread

    Bumping this in case it got buried. Happy to send a 2-minute demo.

  3. 5 days later

    Last noteStopped on reply

    Skipped automatically: Maya replied on Thursday.

Illustrative example. Google Workspace today; Outlook is coming soon.
  • Your inbox, your replies

    Connect Google Workspace in a minute. Emails go out from you, and replies land where you already work.

  • Follow-ups that know when to stop

    Up to 9 follow-ups, each with its own copy, delay and send time. A reply or a bounce ends that person's sequence.

  • Paced like a person

    Sending hours in the recipient's timezone, a daily cap and a gap between sends for every inbox. One-click unsubscribe on every email.

  • Send as many as you find

    Every plan sends up to its monthly email count, follow-ups included: 2,000, 8,000 or 50,000. No per-email fee, and your agent schedules, pauses and reports from the same chat.

Every Agent.
One Plug.

acquiresure works in 17 AI agents, from Claude Code, Codex and Cursor to Hermes and every agent that speaks MCP. Paste one prompt and your agent connects itself.

Install the acquiresure MCP server by following https://api.acquiresure.cloud/mcpinstall.md. My API key is <your key>.

Works in Claude Code, Codex, Cursor, Gemini CLI, Hermes Agent, Windsurf, GitHub Copilot, OpenCode, Cline, OpenClaw, Roo Code, Kiro, Goose, Amp, Trae, Qwen Code, Kimi CLI.

Our Approach to
Prospecting

Prospecting tools have been built for humans clicking through dashboards. We built acquiresure for the agents doing the work now: pay only for what's found, check every email before it's sent, and keep your data yours.

  • Pay Only for Results
  • Verified Before Sent
  • Built for AI Agents
  • Credits Roll Over
  • Private by Design

By the Numbers

Priced to be the cheapest way to reach a verified inbox, and built so you never pay for a lookup that comes back empty.

  • $0.0073

    Lowest price per work email

  • 17

    AI agents it works in

  • $0

    Charged when nothing is found

  • 10

    Free work emails to start

One API.
Every Tool.

Lead search, email finding, verification, tech stacks and website visitors behind one API key and one set of credits. Call it from your agent over MCP, from your code over REST, or click it in the dashboard. Unused credits roll over while you're subscribed.

What You Can Ask

Once acquiresure is connected, you brief your agent the way you'd brief a teammate. A few examples of what it can do for you today.

Example brief
Find 50 heads of growth at Series A SaaS companies in New York and get their work emails.
Claude Code · with acquiresure
Example brief
Clean this list of 800 emails before tomorrow's campaign. Drop anything that would bounce.
Codex · with acquiresure
Example brief
Find 100 COBOL developers in San Francisco, get their emails and draft an intro to each.
Claude Code · with acquiresure
Example brief
Who visited our pricing page this week? Find the right person to email at each company.
Cursor · with acquiresure
Example brief
Which of these 200 accounts use HubSpot? Keep only the ones that do.
Hermes Agent · with acquiresure
Example brief
Verify every email in our CRM export and flag the risky ones before we sync it back.
Windsurf · with acquiresure
Example brief
Get me the VP of Engineering at every company in this CSV, with verified emails.
Gemini CLI · with acquiresure
Example brief
List the sales team at linear.app with their titles and work emails.
OpenCode · with acquiresure
Example brief
Look up who's behind these 30 inbound signups and tell me which are real companies.
GitHub Copilot · with acquiresure
Example brief
Find founders of AI startups in London hiring their first salesperson.
Codex · with acquiresure

Pricing

Start with 10 free work emails. Sending from your own inbox is included in every plan. Unused credits roll over while you're subscribed, and you can cancel any time. Pay yearly and get 2 months free.

Starter

Try it on a real campaign

$25/ month

2,000 credits a month

About 2,000 work emails · $0.0125 each

  • Every tool: lead search, find, verify, tech, IP
  • Your agent (MCP), API and dashboard
  • Send 2,000 emails a month from your inbox
  • Unused credits roll over
Get started free
Most popular

Growth

For founders and SDRs prospecting weekly

$98/ month

8,000 credits a month

About 8,000 work emails · $0.0123 each

  • Everything in Starter
  • Send 8,000 emails a month
  • Priority email support
  • Best value for most teams
Get started free

Scale

For sales teams and agencies

$365/ month

50,000 credits a month

About 50,000 work emails · $0.0073 each

  • Everything in Growth
  • Send 50,000 emails a month
  • Dedicated onboarding call
  • Lowest price per email
Get started free

Enterprise

More than 50,000 emails a month? Custom volume pricing, invoicing and a direct line to the team.

Talk to us

Cheaper per Email
Than All 7, at Every Volume

Pick how many work emails you need a month and compare the price per email with these popular tools, read off each vendor's pricing page.

10,000

work emails a month

acquiresure

Unused credits roll over while subscribed

$0.0073 / email

51% cheaper per email than the next cheapest, Hunter.io, and 93% below the average of these 7 tools.

  1. Hunter.io

    Not stated

    $0.0149

  2. Findymail

    Up to 2x the plan

    $0.0166

  3. Anymail Finder

    Rolls over while subscribed

    $0.0199

  4. Apollo.io

    Not stated

    $0.0248

  5. Kasprest.

    Not stated

    $0.0451

  6. Lusha

    Up to 2x the monthly cap

    $0.0882

  7. UpLead

    Not stated

    $0.4975

Sources and method

Price per work email on the plan that covers the volume (the cheapest plan that does, or the largest plan past it), billed monthly where the vendor offers it, one seat, one credit per email found. The same rule applies to acquiresure. Read from each vendor's pricing page on 28 September 2026. ZoomInfo and Seamless.AI publish no prices, so they aren't listed. Prices change, so confirm on the vendor's site before you buy.

  • Apollo.io: apollo.io/pricing · Basic and Professional, per seat, billed monthly
  • Hunter.io: hunter.io/pricing
  • Lusha: lusha.com/pricing · Only yearly billing is published; per month, credits granted yearly
  • Findymail: findymail.com/pricing
  • Anymail Finder: anymailfinder.com/pricing
  • UpLead: uplead.com/pricing · 1 credit = 1 contact
  • Kaspr: kaspr.io/pricing · €59 and €99 per user converted at €1 = $1.14; export caps of 12,000 and 30,000 a year

All product names and logos are trademarks of their respective owners.

Questions You
Might Have

Straight answers about pricing, accuracy, your data and how it works with your agent. Anything else, email us and a person will reply.

See How Many Buyers
You Can Reach

A live count from our lead database. No signup needed.

—

people match your search

Sign up free to get their emails

Try · ·