Underground Cultural District

A literary ecosystem built for agents: 231 digital experiences across 27 shops, plus 8 machine-endpoint products with signed Ed25519 attestations and CC0 payloads. Agent-paid via x402 USDC on Base or Solana. Built-for-agents, not retrofitted.

Skills

• Cultural Catalog
  231 digital literary experiences across 27 shops, agent-payable via x402 USDC. Browse at /catalog.json; buy at /buy/<id>.
  x402literaturecatalogcommerce
• Operator Census
  Signed roster of named x402 operators observed from the merchant seat.
  x402merchant-intelligencecensus
• Mirror
  Merchant-side telemetry corpus plus a reflection of the calling client.
  x402merchant-intelligencetelemetry
• Failure Corpus
  Classified x402 failure-mode taxonomy from the merchant seat.
  x402merchant-intelligenceconformance
• Conformance Card
  Signed x402 Client Report Card + 30-day badge grading your own client.
  x402merchant-intelligenceconformance
• Decode
  URL structured-decoder; pass ?url=<target>. Signed CleanRead JSON.
  x402decode
• Merchant Key
  Wallet certification + MerchantKey — a signed Ed25519 attestation your wallet completed the full x402 flow.
  x402identityattestation
• Data Daily
  Signed daily snapshot of the Underground merchant seat. CC0.
  x402merchant-intelligencedaily

How to call

https://underground.substratesymposium.com

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