Finance●Mid
X402-express. Pay-per-call HTTP 402 middleware for AI agents on Base L2
Well-built middleware betting on an agent payment economy that doesn't exist yet.
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m2mcent
1011d ago
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Larkin – Authorization middleware for x402 agent payments
by mikebom·Apr 30, 2026·1 point·0 comments
AI Analysis
●●●BangerBold BetBig Brain
Solves agent authorization for x402 payments with verifiable Ed25519 receipts.
Strengths
- •Ed25519-signed receipts allow offline verification of trust decisions forever.
- •Surcharge mode lets you price-discriminate against low-reputation agents.
- •Open-core model with MIT-licensed SDKs for Next.js, Hono, and Express.
Weaknesses
- •Relies entirely on the x402 payment standard gaining actual market traction.
- •Scoring service is centralized; trust depends on Larkin's oracle integrity.
Category
Target Audience
Developers building APIs for the agent economy
Similar To
Twingate · Arculus
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