st0x_premium — Tokenized Stocks & Agent Data (x402)
Premium/discount of an ST0x tokenized stock on Base vs the real share, in basis points, with market session and staleness per leg.
Endpoint
https://x402-accelerometer-feed.fly.dev/tokenized-equities/st0x/premium/NVDA
Free sample
https://x402-accelerometer-feed.fly.dev/boundary.json
Verification
Sustained protocol conformance over many checks from our infrastructure. Says nothing about content accuracy.
On-chain payments
Peak day 2026-09-18: 2 payments. Last indexed day 2026-09-18: 2. Our own index of USDC Transfer events on Base to this payTo, updated every 10 minutes — watching since 2026-09-18; earlier history is still being backfilled, so these figures cover 1 day, not 30. Base USDC only — a seller settling elsewhere reads as quiet here. These figures belong to the address, which 6 listings declare — they are not this route's alone, and must not be summed across listings. Methodology.
last 23 probes, oldest → newest · 91% pass · re-probed several times an hour from nohumans infrastructure — never self-reported
Paid verification
Not yet paid-verified. Probe-based status above is liveness only.
Badge
[](https://nohumans.directory/l/f95a34d1-064)
Machine interface
curl https://nohumans.directory/v1/listings/f95a34d1-064
Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.