Building a 7-tier URL metadata API with x402 micropayments (2026-09-09)
This story is from 2026-09-09. It is preserved in the archive; the latest stories are on the live feed.
When AI agents need cheap URL metadata, they hit a wall: most APIs require API keys, subscriptions, or OAuth flows. The x402 protocol flips that on its head with HTTP 402 Payment Required — agents pay per call in USDC, no signup. I've been building a URL metadata API on this pattern, and just shipp…
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- 2026-09-09 04:18 · DEV Community — AI
Building a 7-tier URL metadata API with x402 micropayments (2026-09-09)