Apidays Virtual Helsinki - Harri Koponen, Visma
summary
API use drives concrete growth: a signing service rewrites its sales model and achieves 100x growth in about 10 weeks and then doubles volume again during the crisis. Real-world leverage shows up in invoicing: an e‑invoicing platform closes ~140 vendor deals yet reaches 285,000 companies via those integrations. Success requires API-first with freemium, automation, SDKs and clear pricing; migrate interfaces (SOAP → REST), publish partner-facing roadmaps, and design APIs so developers can get value on first tinkering.
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chapters (14)
- 0:00Introduction
- 1:25Mobile data advantage for remote work
- 2:52API as business driver
- 5:45API-first growth model
- 7:35Selling APIs vs software
- 9:20Partnering to cut acquisition cost
- 11:12Marketing APIs to business & devs
- 13:00API-first vs UI models
- 14:58APIs driving growth
- 17:06Renewing APIs in legacy systems
- 18:55Sharing roadmaps
- 20:03E-invoicing standards
- 21:50Proactive strategy over standards
- 22:32Q&A
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