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plus query echo (keywords, sources, limit, since_hours), aggregation stats (raw items fetched, feeds used, duplicates removed, items filtered out, items returned), price in USD, and generation timestamp.","failureModes":["Missing required 'sources' parameter returns a validation error","Invalid feed URL in sources causes that feed to be skipped or returns an error","No items match the keyword filter resulting in an empty items array with stats showing filtered_out count","since_hours exceeding 2160 (90 days) rejected with schema validation error","limit exceeding 100 clamped or rejected","Upstream feed unavailable causes reduced feeds_used count","Payment failure via x402 returns 402 with payment requirements before serving content"],"whenToPreferThis":"Use this endpoint when you need a fast, scored, deduplicated news digest across multiple curated RSS categories (ai, tech, security, finance, science, world, dev) or custom feed URLs, with optional keyword filtering and time-window constraints. Prefer this over raw RSS parsing when you want deduplication, relevance scoring, and summarization handled server-side. It is ideal for agent pipelines that need structured news data without managing feed polling infrastructure. Pay only $0.01 USDC per call via x402.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T12:35:47.892Z","isFirstParty":false,"canonicalSlug":"feednews-digest-3961dea3"}