Canadian Uniblock Raises $5.2M to Simplify 300+ Blockchain Integrations

Uniblock closes a $5.2M seed round, hitting $7.5M total raised, to unify 300+ blockchain APIs into one integration for devs and AI agents.

Uniblock has closed an oversubscribed seed round, raising $5.2 million and bringing its total capital to $7.5 million. 

The Canadian startup operates a managed infrastructure layer that connects blockchain applications to over 55 data providers. Its platform covers more than 300 blockchains through a single API key. 

Co-founder and CEO Kevin Callahan confirmed the round on X, crediting the company’s team, investors, and customers for the milestone.

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Uniblock’s Multi-Chain Infrastructure Draws Global Investors

The round attracted backers from across the US, Japan, India, Singapore, and the Solana ecosystem. 

Investors include SBI, Alchemy, MoonPay, NGC Ventures, Blockchain Founders Fund, Hustle Fund, AllianceDAO, and CoinSwitch. Angel investors from Kraken, Uber, and CoinList also participated.

Aly Madhavji, Managing Partner at Blockchain Founders Fund, pointed to growing institutional interest in blockchain infrastructure. 

He cited Stripe’s $1.1 billion acquisition of Bridge and Visa’s move onchain as signs of where the market is heading. According to Madhavji, Uniblock already serves 3,000 projects, and that number is growing.

SBI Ven Capital CEO Eiichiro So said the next wave of blockchain adoption will require infrastructure that handles complexity without sacrificing performance. 

He described Uniblock’s single API layer as well-positioned to serve developers, enterprises, and AI-driven applications.

One API Key Replacing Dozens of Blockchain Integrations

The core problem Uniblock addresses is fragmentation. No single blockchain data provider covers every chain. 

No single provider guarantees 100% uptime. Without a central orchestration layer, every development team builds its own routing and fallback systems from scratch.

Uniblock replaces that process with one integration. Its patented auto-routing engine handles provider selection, failover, and data normalization automatically. 

Over 4,000 developers currently run on the platform. Customers include Plume Network, Stellar Blockchain, Hypernative, Oku Trade, and Apechain, several of which rely on Uniblock for managed RPC infrastructure.

Callahan described two simultaneous shifts driving demand. 

Mainstream companies are bringing production workloads to blockchain. At the same time, AI agents are beginning to read and write chain data on their own. 

Both, he said, need reliable infrastructure across hundreds of chains.

AI-Native Developer Tools Now Live on the Platform

Alongside the funding announcement, Uniblock launched a suite of tools built for AI-driven development. 

The tools are designed for how developers actually build today, using AI assistants and coding environments rather than reading documentation manually.

The suite includes an MCP server that lets AI agents call Uniblock’s unified APIs directly, with no human involvement required. 

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Uniblock also released LLM-optimized documentation through a structured llms.txt file, ensuring AI coding assistants return accurate integration details. 

Ready-to-paste agent skills for Claude, Codex, and Cursor are also available, helping developers generate correct Uniblock code on the first try.

The company plans to use the new capital to deepen chain coverage and expand its orchestration engine. 

New API categories, including stablecoins, wallets, and prediction markets, are on the roadmap. Uniblock is also scaling its engineering team and pursuing enterprise go-to-market efforts across its key regions.

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