List of API Software | Last updated: November 5, 2026
This page lists the 384 tools in the TechZella directory that are classified under API, a platform in our taxonomy. Every profile summarises what the product does, who it suits, what it costs, and where it falls short, based on documented vendor and independent sources rather than hands-on testing. Examples in this group include 1Password, Canva, Descartes Systems Group, Grammarly Business, Magento (Adobe Commerce), Otter.ai, Scribie and Trellix Endpoint Security; the list is alphabetical and does not imply a ranking. Across these tools the industries most often documented are Education, Professional Services, Financial Services, Healthcare. The most common documented use cases are Workflow automation, Sales pipeline management, Hybrid events, Team collaboration. Tools here are most often also filed under CRM Software, Webinar Software, Virtual Event Software, Cloud Storage. To compare options, open each profile and read the Decision Snapshot, the pricing and total cost sections, and the Gotchas, then check the alternatives listed for the products you are considering. Features, pricing and availability change, so confirm current details with each vendor before you decide.
This page lists the 384 tools in the TechZella directory that are classified under API, a platform in our taxonomy. Every profile summarises what the product does, who it suits, what it costs, and where it falls short, based on documented vendor and independent sources rather than hands-on testing. Examples in this group include 1Password, Canva, Descartes Systems Group, Grammarly Business, Magento (Adobe Commerce), Otter.ai, Scribie and Trellix Endpoint Security; the list is alphabetical and does not imply a ranking. Across these tools the industries most often documented are Education, Professional Services, Financial Services, Healthcare. The most common documented use cases are Workflow automation, Sales pipeline management, Hybrid events, Team collaboration. Tools here are most often also filed under CRM Software, Webinar Software, Virtual Event Software, Cloud Storage. To compare options, open each profile and read the Decision Snapshot, the pricing and total cost sections, and the Gotchas, then check the alternatives listed for the products you are considering. Features, pricing and availability change, so confirm current details with each vendor before you decide.
These links use TechZella's existing product-to-taxonomy relationships. They are navigation aids, not independent endorsements.
Browse the current directory listings and open individual profiles for detailed feature, pricing and evidence information.
| # | Software / Tool | Best For | TechZella Score | User Rating | Pricing |
|---|---|---|---|---|---|
| 1 | Chili Piper | Chili Piper routes and qualifies sales leads, schedules meetings, and automates follow-up… | 8.0/10 | — | $1,250 / $3,500 |
| 2 | Demandbase | Demandbase is a B2B go-to-market platform that combines account intelligence, intent signals,… | 7.9/10 | — | Custom quote |
| 3 | Gong.io | Gong captures and analyzes customer calls and other interactions, connecting conversation insights… | 7.9/10 | — | See pricing |
| 4 | Introhive | Introhive captures and enriches relationship data from business communications, then connects it… | 7.8/10 | — | $35 / Contact vendor |
| 5 | Cognism | Cognism is a B2B sales-intelligence platform for prospecting, contact and company data,… | 7.7/10 | — | Contact sales |
| 6 | Looker | Looker is Google Cloud’s business intelligence platform for modeling, exploring, and visualizing… | 7.7/10 | — | Call sales / $0 |
| 7 | Outreach.io | Outreach is a SaaS revenue platform for sales engagement, AI-assisted workflows, conversation… | 7.7/10 | — | Custom quote |
| 8 | RollWorks | RollWorks, now marketed as AdRoll ABM, helps B2B teams identify target accounts,… | 7.7/10 | — | Request a quote |
| 9 | Metadata.io | Metadata.io helps B2B teams build audiences, run paid campaigns across advertising channels,… | 7.5/10 | — | Custom |
| 10 | BoostUp | BoostUp, now Terret, is a cloud revenue intelligence platform for sales forecasting,… | 6.3/10 | — | Contact sales / $0 |
FastBill is cloud accounting and invoicing software for German freelancers and small businesses, with receipt management, banking reconciliation, tax workflows, and DATEV…
€10 monthly; €9/month with annual billing / month
Sevdesk is cloud accounting software for freelancers and small businesses, with invoicing, receipt capture, bookkeeping, banking connections and tax workflows for Germany.
€0 / month
ZarMoney is cloud accounting software combining invoicing, payables, bank reconciliation, financial reporting and inventory management for businesses.
$20 / month
Mailjet is a web-based email marketing and delivery platform with campaign tools, contact management, automation, SMTP relay, and APIs for transactional email.
$0 / month
Sendlane is a web-based email marketing platform with campaign tools, behavioral automations, audience segmentation, and e-commerce integrations.
$100 / month
Flodesk is a web-based email marketing platform for designing and sending campaigns, collecting subscribers, and automating email workflows. Paid plans also offer…
$0 / month
Kit is a web-based email marketing platform for creators, with newsletters, audience-growth tools, automations, and digital product sales.
$0 / month
beehiiv combines newsletter publishing, email marketing, audience-growth tools, and monetization features with a hosted website, podcast, and community.
$0 / month
Substack combines email newsletter publishing, a hosted publication site, subscriber management, and paid subscriptions with reader discovery and community features.
$0 / month
Kirby is a self-hosted, file-based CMS with a customizable browser Panel, PHP templates, plugins, and REST API options for traditional or headless…
€99 / one-time