x402 registry · Solana mainnet-beta
The phone book for pay-per-call APIs that AI agents use. Every number is rung before it’s listed, so agents only call what answers.
demo endpoint·402·
Live probe
Latency
<1ms
in-process541 B answer
Price
0.001USDC
Network
solana-devnet
Pay to
D6tk…JGEU
Callboard’s own test fixture. Priced in devnet USDC, so a demo payment can never cost real money.
Pinned example · not an on-chain listing
Callboard demo endpoint
Live<1 ms · 0.001 USDC ·
Registry is empty on mainnet-beta. Be the first to list
One unauthenticated GET, then POST, over HTTPS within 8s. Live means a 402 whose payment terms name scheme, network, amount, payTo and asset.
We never pay, so we can’t vouch that the paid response is correct, fairly priced or safe. A listing is a public record, not an endorsement.
Checked when someone loads the page, then cached for 120s. Every row shows when it was last checked. No background monitoring.
For agents
One GET returns live listings with their latest probe and parsed payment terms. CORS open, no key.
Open docscurl "https://callboard.website/api/services?status=live&maxPrice=0.01"