Uniblock, the managed infrastructure layer for blockchain applications, has raised $5.2 million in funding, bringing its total raise to $7.5 million. Participants include investors across the US, Japan, India, Singapore, and the Solana ecosystem, including SBI, AllianceDAO, CoinSwitch, Blockchain Founders Fund, Hustle Fund, AAF Management, NGC Ventures, Alchemy, MoonPay among others, with angel participation from executives at Kraken, Uber, and CoinList. Alongside the raise, Uniblock has shipped a suite of AI-native developer tools.
Blockchain infrastructure has entered a new phase. Stripe has entered the crypto arena in a big way with its $1.1 billion acquisition of Bridge for stablecoins, Privy for wallets and now Tempo, its own Layer 1 blockchain for payments, with Mastercard, Visa, and UBS already testing on the network. Mainstream media networks broadcast Polymarket prediction market odds in live news tickers alongside war coverage and election results. Tokenized assets trade on regulated exchanges.
At the same time, AI agents are beginning to read and write blockchain data autonomously, and developers increasingly build through AI coding assistants rather than reading documentation line by line.
Uniblock operates the managed infrastructure layer between blockchain applications and the 55 data partners they depend on. One API key provides access to more than 300 blockchains and more than 3,000 APIs, with patented auto-routing that handles provider selection, failover, and data normalization. More than 3,000 projects and 4,000 developers run on the platform.
Customers including Plume Network, Stellar Blockchain, Hypernative, Oku Trade, nReach, and Apechain run production workloads. Plume Network and Apechain run Uniblock as managed RPC infrastructure through ecosystem partnerships.
AI-driven API consumption is a growing segment on the platform. It accelerates Uniblock’s own development, powers the product’s intelligent routing engine, and represents a new category of infrastructure consumer.
AI-native developer tools
MCP server – AI agents call Uniblock’s unified APIs directly with no humans in the loop. Live at a public endpoint.
LLM-optimized documentation (llms.txt) – Structured API reference built for AI consumption. When a developer’s AI assistant queries Uniblock integration details, the answer is accurate.
Agent skills – Ready-to-paste context for Claude, Codex, Cursor, and other AI coding environments. Developers drop these into their IDE so the AI writes correct Uniblock integration code on the first attempt.
“Two shifts are happening at once,” explained Uniblock co-founder and CEO Kevin Callahan. “Mainstream companies are bringing production workloads to blockchain, and AI agents are starting to read and write chain data autonomously.
“Both need the same thing: reliable infrastructure across hundreds of chains. That’s what Uniblock runs.”
“The next wave of blockchain adoption will depend on infrastructure that simplifies an increasingly complex ecosystem while maintaining dependable performance,” added Eiichiro So, CEO and managing director of SBI Ven Capital. “Uniblock is building exactly that through a single API layer that simplifies multi-chain access for developers, enterprises, and AI-driven applications, and we are pleased to support the team as it enters this next phase of growth.”