Check a seller before you pay
https://api.xona-agent.com/token/pumpfun-trending
avoid
vet402 paid this seller 17 times on Solana over 10 days; 0 of 17 paid calls answered (the newest failed one answered HTTP 500).
pay: most paid calls answered. avoid: most did not. unknown: not enough to say pay or avoid. avoid is said only after vet402 has told the seller; until then the verdict is unknown.
| Seller | api.xona-agent.com |
| Chains | solana |
| Tried / settled | 17 / 17 |
| Paid calls answered | 0 of 17 |
| Not counted against the seller | 0 |
| Days with paid calls | 10 |
| Newest purchase | 2026-10-07T02:28:07.014Z · solana · settled_error_status · HTTP 500 · tx |
| Newest signed record | obs_2026-10-06_001665 (NOT_DELIVERED, 16 published) |
| As of | rank.json 2026-10-07, 1595 signed records |
Every purchase vet402 made from this seller
pay: the 95% interval of answered / counted is at or above 0.5 (grade C's line), on 2+ days. avoid: its upper bound is below 0.5 (grade D's line), on 2+ days. Otherwise unknown. Counted = paid calls: purchases whose payment settled, answered or failed on the seller's side; a seller's 5xx with no settled payment, failures on vet402's or the facilitator's side, and failures of unknown cause are left out. No settled payment: unknown. avoid is said only after vet402 has told the seller; until then the verdict is unknown.
Check another seller
Paste the API URL an agent is about to pay. The answer is pay, avoid or unknown, from vet402's own paid purchases, with the numbers behind it. Free, no key.
From code: GET https://vet402-delivery.vercel.app/v1/check?url=<seller URL> returns JSON (optional &chain= and &payTo=).
All sellers vet402 bought from · How vet402 measures