
Fast (prev. Pi Squared)
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AI
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What is Fast (prev. Pi Squared)?
Fast is a payment infrastructure for programmatic transactions that enables AI agents, APIs, and software systems to request, authorize, and settle payments in both cryptocurrency and fiat currency without human intervention.
Key features:
For AI agents and APIs — provides each agent or service with its own wallet, allowing them to automatically pay each other for resources (computations, data, requests) in real time
Microtransactions — fees are close to zero, making it economically viable to pay for individual actions ($0.001 per API request, $0.01 per inference)
Instant finality — transactions finalize in less than a second without waiting states, which is critical for payment tasks that block execution
Unified SDK (Fast Skill) — developers simply need to call the send() function; the SDK automatically manages keys, signatures, and network interactions, and accepts both stablecoins and fiat
Blockless and consensus-free network — the base network (Fast Network) processes transactions in parallel with mathematical verification, providing throughput for large-scale M2M payments
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