Agent payment index
Agent Payment Chains
Decide where AI agents should transact.
Compare Bitcoin, Ethereum, and Solana for AI agent payments, stablecoin flows, wallet policy, and API-native transaction systems. Additional L1 profiles will be added after review.
Public L1 coverage
Selected L1 payment candidates
Bitcoin
Monetary base layer
Bitcoin is the monetary base layer for agent payments, with Lightning and L402 as constrained paths for small BTC API payments.
PoW Monetary Base Lightning L402
Ethereum
Programmable settlement layer
Ethereum is a programmable settlement layer for stablecoins, smart accounts, x402, and L2-based agent payment systems.
PoS Settlement Smart Accounts Stablecoin
Solana
High-throughput payment L1
Solana is a high-throughput L1 runtime for stablecoin transfers, x402-style API billing, Actions/Blinks, and agent payment UX.
PoS High Throughput Low Fees x402