OVOLYN
TESTNET

Market

Anyone may list. No one reviews it — a probe does, and its verdict is the tier.

ServiceProviderProbePrice
Arc Gas Oraclefirst-party
Current Arc Testnet base fee and block height, denominated in USDC.
https://ovolyn.xyz/stall/gas-oracle
Ovolyn Labs
0x705197b0…
not probed
$0.001
USYC NAV Feedfirst-party
Live USYC net asset value and implied yield, read from the Teller contract.
https://ovolyn.xyz/stall/usyc-nav
Meridian Data
0xf034096e…
not probed
$0.004
Treasury Signalfirst-party
Allocation guidance for a stablecoin treasury: idle ratio, yield capture, FX exposure.
https://ovolyn.xyz/stall/treasury-signal
Halden Research
0x43b53ec9…
not probed
$0.008
Deep Market Analysisfirst-party
Full market microstructure report. Priced above a conservative per-transaction limit.
https://ovolyn.xyz/stall/deep-analysis
Halden Research
0x1ffb3e19…
not probed
$0.05
Manual spend · same gates
Allowlist → live quote → per-tx limit → daily budget

List your service

Serve an x402-paywalled endpoint and sign with the address you want paid. There is no review queue — the probe runs immediately and its verdict is your tier.