How it works
Connect once, then brief your agent like a teammate. It does the prospecting and you only pay for what it finds.
Paste one prompt into Claude, Codex, Cursor, Hermes or any MCP agent. It reads our install guide and adds acquiresure to itself.
Brief it like a teammate: “Series A fintechs in New York hiring salespeople.” It searches companies by funding, headcount, industry, location and tech.
It finds the right person at each company, the Head of Sales, the CTO, the founder, with their title and profile.
It unlocks each work email and checks it before anything is sent. You only pay when an email is found.
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
- General
- Account
- Privacy
- Billing
- Capabilities
- Connectors
- Claude Code
Connectors
Allow Claude to reference other apps and services for more context.
Google Drive
ConnectGmail
ConnectGitHub
ConnectAdd custom connector
Connect Claude to your data and tools.
Name
Remote MCP server URL
Advanced settings
Illustrative walkthrough. Companies and people shown are examples. Claude is a trademark of Anthropic; Hermes Agent is by Nous Research.
Our Tools
Every prospecting job on one balance: find the people, get their emails, check them before you send, and know what their company runs. From your agent, the API or the dashboard.
Search leads
0.1 credits per lead
People at a company
0.1 per person · 1 per email
Find a work email
1 credit per email found
Verify an email
0.1 credits · risky is free
Verify a whole list
0.1 credits per email
Company tech stack
0.5 credits per company
Person from email
1 credit per profile
Company from IP
10 credits per company
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
- 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
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
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
Tue · 09:30 their time
Quick one, Maya
Hi Maya, congrats on the Series A. Saw you're hiring two SDRs, so…
2 days later · 14:00
Follow-up, same thread
Bumping this in case it got buried. Happy to send a 2-minute demo.
5 days later
Last noteStopped on reply
Skipped automatically: Maya replied on Thursday.
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.
Find 50 heads of growth at Series A SaaS companies in New York and get their work emails.
Clean this list of 800 emails before tomorrow's campaign. Drop anything that would bounce.
Find 100 COBOL developers in San Francisco, get their emails and draft an intro to each.
Who visited our pricing page this week? Find the right person to email at each company.
Which of these 200 accounts use HubSpot? Keep only the ones that do.
Verify every email in our CRM export and flag the risky ones before we sync it back.
Get me the VP of Engineering at every company in this CSV, with verified emails.
List the sales team at linear.app with their titles and work emails.
Look up who's behind these 30 inbound signups and tell me which are real companies.
Find founders of AI startups in London hiring their first salesperson.
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
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
Growth
For founders and SDRs prospecting weekly
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
Scale
For sales teams and agencies
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
Enterprise
More than 50,000 emails a month? Custom volume pricing, invoicing and a direct line to the team.
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.

Hunter.io
Not stated
$0.0149

Findymail
Up to 2x the plan
$0.0166

Anymail Finder
Rolls over while subscribed
$0.0199

Apollo.io
Not stated
$0.0248

Kasprest.
Not stated
$0.0451

Lusha
Up to 2x the monthly cap
$0.0882

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.
acquiresure is a people and company data API for AI agents, a product of Keirolabs (keirolabs.cloud). Once connected, your agent (Claude, Codex, Cursor and others) can search for leads by title, skills, location and company, find their work emails, verify emails before outreach identify the companies behind your website visitors, and send the outreach from your own inbox with follow-ups that stop when someone replies. Your team can use the same tools in a dashboard, and developers can call a REST API.
Sign up with your email: no card, no password. You get a free trial to try it, once per person. acquiresure isn't available in every region yet.
In Claude or ChatGPT on the web, add a custom connector with the URL https://api.acquiresure.cloud/mcp, click Connect and approve on the acquiresure page: no API key needed (in ChatGPT, turn on Developer mode first). In Claude Code, Codex or Cursor, paste one prompt: "Install the acquiresure MCP server by following https://api.acquiresure.cloud/mcpinstall.md. My API key is <your key>." The agent reads the install guide and adds the server to its own config.
One credit finds one work email. Searching leads costs 0.1 credits per lead, verifying an email 0.1 and identifying a company from an IP 10. Counting matching leads is free, and lookups with no result are never charged. New accounts start with 10 free credits, no card needed (one free trial per person). Plans are monthly: Starter is $25 for 2,000 credits, Growth $98 for 8,000 and Scale $365 for 50,000 ($0.0073 an email). Pay yearly and get 2 months free. Unused credits roll over while you stay subscribed, and you can cancel any time. Larger volumes get custom pricing.
Yes. Connect your Google Workspace inbox once, then ask your agent to email the leads it found. It drafts the emails and shows you, then sends them from your inbox, one at a time or as a campaign with up to 9 follow-ups. Each follow-up has its own copy, delay and send time, and stops as soon as someone replies or bounces. Sending respects working hours in the recipient's timezone and a daily cap for every inbox, and every email has one-click unsubscribe. Sending is included in every paid plan, up to the plan's monthly email count (2,000, 8,000 or 50,000 a month, follow-ups included); the free trial covers 20 emails.
Google Workspace inboxes today, connected with a Google app password that we check with Google and store encrypted. Outlook and Microsoft 365 are coming soon with Microsoft sign-in. Replies land in your inbox as usual; we read message headers to spot replies and bounces so follow-ups stop on their own.
Each check returns a verdict (valid, risky or invalid) with a confidence level, the mail provider, and whether the domain is a catch-all. Risky results, such as catch-all domains, are never charged.
Yes. Give your agent names and company domains and it finds the work emails. Hand it a list and it verifies up to 100 emails per batch, dropping anything that would bounce. Risky and unprocessed emails are refunded.
Yes. The batch endpoint and the dashboard's list tool verify up to 100 emails per batch in the background. Duplicates are free, and risky or unprocessed emails are refunded when the batch finishes.
No. Lookup inputs are sent to our data provider to perform the lookup and returned to you. We keep only request metadata (endpoint, time, status, latency, credits) for billing and your usage logs. Emails you send from a connected inbox are kept so you can see them, schedule follow-ups and track replies; you can delete them with your account at any time.
You're not charged. Lookups that return nothing, risky verifications and IPs with no company behind them never cost a credit.
Yes. Cancel from Billing in one click and your plan runs to the end of the period you paid for. Unused credits roll over every month while you're subscribed.
B2B outreach to work emails is legal in most countries when it's relevant to the person's job and every email offers an easy way to opt out. Some countries, including parts of the EU, have stricter rules, so check the rules where your prospects are. Our terms don't allow spam.
Each account can make 120 API or MCP requests per minute. Contact us if you need more.