The people
What they build
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Working at Uniblock
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On the TechTO stage
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About
Uniblock sits between an application and the blockchain providers it depends on, routing each request to a working provider. Callahan said on the TechTO stage in September 2026 that customers began asking for the same routing on AI model spend, which they called their biggest cost after blockchain data. That became Unirouter and then Hopscotch Labs, which he announced at TechTO about a month after Stripe agreed to buy OpenRouter, the best-known AI model router, for more than $7B.
Backers
$7.5M USD raised. March 2026: $5.2M led by SBI Ven Capital with AllianceDAO, CoinSwitch, Blockchain Founders Fund, Hustle Fund, NGC Ventures, Alchemy and MoonPay, among others. November 2023: $3.1M CAD pre-seed from Cadenza, Blockchain Founders Fund, Side Door Ventures, AQN, Serafund and Outsider Ventures (BetaKit).
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Quick answers
What does Uniblock do?
Uniblock's about page, checked September 23, 2026, describes it as an infrastructure layer between an application and 300+ blockchains, with one API, routing across 50+ providers, automatic failover and unified billing.
Who founded Uniblock?
Kevin Callahan (CEO) and David Liu (CTO), per Uniblock's about page, checked September 23, 2026. BetaKit reported on November 16, 2023 that the company is based in Toronto with an office in San Francisco.
What is Hopscotch Labs?
An AI model router that Kevin Callahan announced on the TechTO stage in September 2026 as the spin-out of Uniblock's AI routing product. Hopscotch's website, checked September 23, 2026, offers one API for 150+ models with low, balanced and high cost tiers.
Who has invested in Uniblock?
Uniblock announced on March 31, 2026 a $5.2M round led by SBI Ven Capital, bringing total funding to $7.5M. BetaKit reported on November 16, 2023 an earlier $3.1M CAD pre-seed backed by Cadenza, Blockchain Founders Fund and Side Door Ventures, among others.