Listed alphabetically. A tool is ranked by its reviews once it has 3.
| Tool | Reviews | Lowest paid plan | Free plan | Free trial | Public API | Runs on | Main features |
|---|---|---|---|---|---|---|---|
 GMassGMass sends your newsletters, announcements, cold email campaigns, and transactional email from inside Gmail. | ReviewsNone yetWrite one for GMass | Lowest paid planNot confirmed | Free planNot confirmed | Free trialNot confirmed | Public APIYes | Runs onChrome, Gmail | Main features
|
 HunterThe all-in-one email outreach platform to find verified decision makers and turn them into leads | ReviewsNone yetWrite one for Hunter | Lowest paid plan$34per month, billed yearlyStarter, as of October 23, 2026 | Free planYes | Free trialNot confirmed | Public APIYes | ||
 InstantlyTurn leads into clients with automated outreach, a B2B lead database, deliverability tools and an AI CRM | ReviewsNone yetWrite one for Instantly | Lowest paid plan$94per monthStarter, as of October 19, 2026 | Free planNot confirmed | Free trialNot confirmed | Public APIYes | Runs onNot confirmed | |
 La Growth MachineRun outreach across LinkedIn, email and calls in one sequence, with a shared inbox and two-way CRM sync. | ReviewsNone yetWrite one for La Growth Machine | Lowest paid plan€50per identity per monthBasic, as of October 28, 2026 | Free planNot confirmed | Free trialNot confirmed | Public APIYes | Runs on | |
 lemlistFind verified contacts and engage them across every channel from lemlist, your CRM or your AI assistant | ReviewsNone yetWrite one for lemlist | Lowest paid plan$69per monthEmail, as of October 19, 2026 | Free planNot confirmed | Free trial14 days | Public APIYes | ||
 MailshakeEmail automation that lands in inboxes, gets replies, and books meetings. | ReviewsNone yetWrite one for Mailshake | Lowest paid plan$29per monthStarter, as of October 28, 2026 | Free planNot confirmed | Free trialNot confirmed | Public APIYes | Runs onNot confirmed | |
 MixmaxRuns every conversation you've started, inside your Gmail | ReviewsNone yetWrite one for Mixmax | Lowest paid plan$29per user per month, billed yearlyI reach out every week, as of October 20, 2026 | Free planYes | Free trialNot confirmed | Public APIYes | ||
 OutreachAgentic AI platform for revenue teams to forecast, coach, close deals and expand accounts | ReviewsNone yetWrite one for Outreach | Lowest paid planSee plans | Free planNot confirmed | Free trialNot confirmed | Public APIYes | Runs onSlack | Main features |
 QuickMailCold email software that is easy to use, with automated follow-ups when there is no response. | ReviewsNone yetWrite one for QuickMail | Lowest paid plan$49per monthStarter, as of October 28, 2026 | Free planNot confirmed | Free trial14 days | Public APIYes | ||
 Reply.ioGenerate leads with multichannel sequences, automate follow-ups, and hire Sales AI agents | ReviewsNone yetWrite one for Reply.io | Lowest paid plan$49per user per month, billed annuallyEmail Volume, as of October 20, 2026 | Free planNot confirmed | Free trial14 days | Public APIYes | ||
 SaleshandyYour complete multichannel outbound platform to book meetings every day | ReviewsNone yetWrite one for Saleshandy | Lowest paid plan$34per month, billed annuallyStarter, as of October 23, 2026 | Free planNot confirmed | Free trial7 days | Public APIYes | ||
 SalesloftPredictive revenue system that captures revenue signals across your stack and turns them into next steps | ReviewsNone yetWrite one for Salesloft | Lowest paid planNot confirmed | Free planNot confirmed | Free trialNot confirmed | Public APIYes | Runs onNot confirmed | Main features |
 SmartleadCold email infrastructure that lands in the primary inbox, with AI agents for prospecting and follow up | ReviewsNone yetWrite one for Smartlead | Lowest paid plan$32per month, billed annuallyBase, as of October 20, 2026 | Free planNot confirmed | Free trialYes | Public APIYes | ||
 Snov.ioFind leads. Enrich them with emails & phone numbers. Send outreach campaigns | ReviewsNone yetWrite one for Snov.io | Lowest paid planNot confirmed | Free planYes | Free trialNot confirmed | Public APIYes | Runs onChrome extension | |
 WaalaxyA simple LinkedIn outreach tool that helps you find prospects, send messages, and follow up automatically. | ReviewsNone yetWrite one for Waalaxy | Lowest paid plan$16per user per monthPro, as of October 28, 2026 | Free planNot confirmed | Free trial14 days | Public APIYes | ||
 WoodpeckerAll you need for cold email and LinkedIn outreach in one place | ReviewsNone yetWrite one for Woodpecker | Lowest paid plan$29per month, for 1 LinkedIn accountLinkedIn, as of October 23, 2026 | Free planNot confirmed | Free trial14 days | Public APIYes |
From each tool's own website. “Not confirmed” means we couldn't confirm it there, not that the tool doesn't have it. Each tool's page says when its facts were checked.
How this list is made
A tool is listed here only when we've confirmed on its own website that it has a public API. Tools we couldn't confirm it for are left out, even if they may have it. Vendors can't pay for a place on this list. Add a tool we missed