{"service":"PageHistory","what":"Daily, time-stamped captures of public company pages (pricing, terms of service, careers, product catalogs) for global listed companies, Chinese AI-model API pricing and Chinese/HK-listed companies. Old versions disappear from the live web; this keeps them.","archive_since":"2026-11-07T14:51:55+00:00","targets":70,"snapshots":76,"changes":7,"free":["GET /v1/collections","GET /v1/targets","GET /v1/targets/{id}/latest","GET /llms.txt"],"paid_x402":{"GET /v1/targets/{id}/history":"$0.005","GET /v1/targets/{id}/at?date=YYYY-MM-DD":"$0.01","GET /v1/targets/{id}/diff?from=&to=":"$0.01","GET /v1/changes?since=&collection=&kind=&severity=":"$0.02","GET /v1/price-changes?since=&collection=&target_id=&currency=&change_type=":"$0.02","GET /v1/ai-prices?date=&group=&model=":"$0.01","GET /v1/ai-prices/history?target_id=&model=":"$0.01","GET /v1/ai-price-index?from=&to=&group=":"$0.02"},"network":"eip155:8453","networks":["eip155:8453","eip155:137"],"docs":"https://fourzerotwo.app/docs"}