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About BlockRunAI
BlockRunAI is a pay-per-call gateway for AI agents, running mainly on Base with Solana and XRPL as additional payment rails, serving developers building autonomous agents and teams that need to cap AI spend. It fronts more than 30 models behind an OpenAI-compatible interface without accounts or API keys: the server returns HTTP 402 with a USDC quote, the client signs an EIP-3009 transfer authorisation, Coinbase's facilitator verifies the signature, and settlement happens onchain after the request is served, with no charge when verification fails. Beyond models it resells X data and prediction-market data per request.
It is an application-layer implementation of the x402 protocol, applying wallet-as-account to model calls and replacing subscriptions and key management with stablecoin settlement, in contrast to cloud API gateways. Settlement and verification depend on Coinbase's facilitator and the USDC contract on Base, so chain congestion or upstream rate limits surface directly as failed calls.
BlockRunAI, an x402-based payment infrastructure layer for AI agents, has progressed through several milestones with long-term significance. In June 2026, it secured investment from Coinbase Ventures' Base Ecosystem Fund, validating its role in establishing USDC as the default settlement rail for autonomous agent commerce on Base. Shortly after, the company launched Nanopayments, powered by Circle Gateway, enabling gas-free USDC micro-transactions as low as $0.000001 with batched onchain settlement across 11 EVM chains. This innovation addresses the cost friction that previously made sub-cent machine-to-machine payments impractical. Additionally, BlockRunAI integrated with PayAI, a Solana-first x402 facilitator, extending its payment rail to Solana with sub-second settlement and zero gas fees for both buyers and merchants. This multi-chain expansion, achieved without API changes, demonstrates the protocol's portability and positions BlockRunAI as a neutral settlement layer for the emerging agent economy, capable of adapting across low-fee chains beyond Base and Solana.
In May 2026 BlockRun published its first State of AI Agent Payments report, covering production data from February 1 to April 30: a multi-chain gateway routed about 2.6 million API calls for more than 1,500 autonomous agents and settled roughly 590,000 USDC transactions on Base and Solana, cutting costs 89% against an all-frontier baseline. The median payment was 1.75 cents, the largest in 89 days was $3.59, and 97% of dollar volume came from wallets with sub-minute inter-arrival times.
On October 7 Solana announced x402 batch payments live, with PayAI as facilitator and BlockRun as the first production user: an agent deposits USDC once, signs an off-chain voucher per call, and thousands of payments collapse into a single on-chain claim. BlockRun's MCP server meanwhile exposes 19 tools spanning model calls, search, image, audio and video generation, onchain data and prediction markets, using a local wallet signature instead of API keys, with global spending caps and budgets delegated to child agents.
BlockRun plans to extend batch settlement to more chains, refine multi-agent budgeting and audit trails, and make the gateway the default checkout for agents buying compute and data.
Vicky Fu — Founder & CEO; former Head of Data Science at Circle, with earlier roles at Capital One and Microsoft's Azure ML team.