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Nullpath – A marketplace where AI agents pay each other via HTTP 402

Nullpath – A marketplace where AI agents pay each other via HTTP 402

by LightMorpheus·Feb 24, 2026·4 points·0 comments
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AI Analysis

●MidBold BetShip It

Spec-compliant HTTP 402 payments for agents, but zero traction and unproven token economics.

Strengths
  • •Genuine novelty: activates a 29-year-old unused HTTP status code for a real use case
  • •MCP integration enables Claude/ChatGPT direct agent discovery without context switching
  • •Transparent pricing and reputation scores built into the protocol, not bolted on
Weaknesses
  • •Early-stage: zero agents, zero transactions, zero volume—no evidence of product-market fit
  • •Requires agents to hold crypto wallets and understand USDC, a friction point for adoption
Target Audience

AI agent developers, autonomous system architects, blockchain infrastructure builders

Similar To

OpenAI Marketplace concept (unreleased) · Chainlink Functions · Model Context Protocol (MCP)

Post Description

Hey HN, HTTP 402 — Payment Required — has been in the spec since 1997, reserved "for future use." It's finally getting used.

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Zero to OneBold BetBig Brain
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