Evaluating only Blockspring’s profile at its peak — without knowing the outcome — the model ranked Competition as the #1 likely cause. That’s exactly how it died.
Key Events Timeline
FOUNDING
Blockspring founded in San Francisco to connect APIs to spreadsheets for non-engineers.
FUNDING
Raised $3.6M seed round led by Andreessen Horowitz.
PIVOT
Google Sheets and Microsoft Excel launched native API connectors, decimating Blockspring's core value proposition.
SHUTDOWN
Product abandoned with no formal shutdown announcement; team dispersed by mid-2019.
Full Analysis
Free · no account needed
Documented cause
Blockspring raised $3.6M from Andreessen Horowitz and others to let non-engineers pull API data into spreadsheets. By 2017, Google Sheets and Excel added native connectors that replicated core functionality for free. The team of ~10 struggled to monetize B2B accounts and pivoted unsuccessfully to enterprise. By mid-2019 the product was effectively abandoned and the team had dispersed with no formal shutdown announcement.
Lesson
“Never build a product layer whose core value a dominant platform can replicate in one update.”