Semilla Agent counterparty check

Before hiring or paying another agent: its ERC-8004 identity on Base (owner, registration file, services, how many agents the owner registered), its Virtuals ACP jobs in 30 days (requesters, repeat requesters, offerings) and its x402 sales (buyers, repeat buyers, retention), with flags and a short verdict.

The whole x402 market on Base in one call: active sellers, paid calls and unique payers over 24h, 7d and 30d, USDC volume, how many payTos are resolved, and how much activity was discarded as outliers.

Time series of x402 activity on Base: calls, raw USDC volume and active sellers per hour, 6 hours or day for the whole market since May 2026, or daily x402-only paid calls, payers and volume for one seller host.

The x402 sellers on Base with most paid calls in a window (1h, 8h, 24h, 7d or 30d): payments, unique payers and USDC volume, from the AgentsMap index.

Prices that comparable x402 endpoints really ask on Base (from their 402 challenges), for a keyword: low, median and high, and the busiest examples with their paid calls.

Searches the x402 services indexed by AgentsMap by keyword and returns operators, endpoints and recent paid activity.

Before paying an x402 service: real paid activity of its host or payTo (24h, 7d, 30d, unique payers, volume, first and last payment), who buys (repeat buyers, payments per buyer, share of the top buyer, new and returning buyers in 7 days), observed prices, endpoint health and price or payTo changes, plus daily history.

Checks one Base transaction on-chain and returns a replay-resistant receipt: chain, token, tx hash, log index, block, confirmations and every USDC transfer. With to and amount it says whether the payment matched; with invoice it binds the matching transfer to that invoice and refuses it for any other invoice (first binding wins, only the digest is kept).