Top Sales & CRM Software for API / SDK

Independently reviewed

Updated October 7, 2026

Whether you're a startup or enterprise, these Sales & CRM apps for API / SDK help teams work faster. Compare ratings, pricing, features and integrations below to find the best fit for 2026.

Use filters and side-by-side details to shortlist the strongest options.

#5

ZenABM

4.2
Turn LinkedIn ads into ABM campaigns that drive pipeline with AI Most LinkedIn ad accounts answer ‘how many clicks’ and go quiet on the question that matters: which target accounts are moving.
Pricing
Paid Subscription$69/mo ($59/mo billed yearly)37-day trial
Best for
B2B marketing and growth teams running ABM on LinkedIn who want account-level engagement and attribution and ABM or GTM agencies managing LinkedIn campaigns across multiple clients.
Platforms
Web app API / SDK
Updated October 1, 2026
Full review ZenABM vs Robynn

41
AppsInsight Score Needs work
Read review Visit site
#1

ColdIQ x Slack

4.1
Tag a bot in Slack and the GTM busywork happens in the thread: 700+ data endpoints searched, verified and pushed to your stack. ColdIQ x Slack: outbound, minus the tab sprawl Most go-to-market teams split a single campaign across four…
Pricing
Free+Paid
Best for
B2B sales and growth teams who live in Slack and want prospecting enrichment and verification without another dashboard - plus developers who want one API key over 40+ GTM data providers.
Platforms
API / SDK Slack app
Updated October 1, 2026
Full review ColdIQ x Slack vs ZenABM

47
AppsInsight Score Needs work
Read review Visit site
#6

SaleSmartly

4.0
Omnichannel customer engagement platform with a shared inbox, AI agents and CRM SaleSmartly is a customer messaging platform that puts WhatsApp, Telegram, Facebook, Instagram and other channels into one shared inbox, then adds AI agents, a CRM and automation on…
Pricing
Free planPaid from $0
Best for
Small and mid-size support and sales teams especially cross-border sellers who manage customers across several messaging channels.
Platforms
Web app iOS (iPhone & iPad) Android API / SDK
Updated October 7, 2026
Full review SaleSmartly vs Hootsuite

43
AppsInsight Score Needs work
Read review Visit site

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