seen_check

com.mcpscores/agent-continuity · Verify this server

Given a batch of items, return only the ones not already in the set — the work you actually still have to do. $0.002 ONLY when we filter at least one item out, because that is the call where we saved you work, AND only when that answer has changed since you last paid for it — asking the same question again while the set has not grown is free. If every item is new we tell you so and charge nothing. Costs $0.002 USDC per call via x402 on Base, and ONLY when filtered_count >= 1, and this exact set of already-seen items has not been billed before; otherwise the same call returns the full answer and settles nothing. Authenticate with Authorization: Bearer <agent_secret>, or pass agent_key as an argument if your host cannot set headers. Equivalent HTTP route: POST /v1/seen/check.