{"uid":"cap_g5zKAd6urhzt--lqsSa5f","slug":"zfinia-machine-economy-changes-since-5216249a","name":"zFinia Machine Economy Changes-Since","description":"Independent data, news and infrastructure intelligence tracking how autonomous agents discover, buy, sell and pay for useful things.","url":"https://api.zfinia.com/v1/intelligence/changes-since","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","anyOf":[{"required":["cursor"]},{"required":["since"]}],"properties":{"since":{"type":"string","maxLength":2048,"minLength":1,"description":"Alias of cursor. Use the previous nextCursor so only later material changes are returned."},"cursor":{"type":"string","maxLength":2048,"minLength":1,"description":"Previous nextCursor (opaque or ISO-8601). Required for the paid delta unless since is set. Pass this back on the next poll."},"maxItems":{"type":"integer","maximum":50,"minimum":1},"include_high_resolution":{"type":"boolean","description":"When true, paid items include full evidence fields already present on the public newswire item."}},"description":"Paid delta for a caller that already has a zFinia cursor. Supply cursor or since (the previous nextCursor).","additionalProperties":false},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["request_id","service_id","service_version","schema","generatedAt","since","nextCursor","count","items","truncated","usageRights"],"properties":{"count":{"type":"integer"},"items":{"type":"array"},"since":{"type":"string"},"schema":{"type":"string"},"product":{"type":"string"},"truncated":{"type":"boolean"},"nextCursor":{"type":"string"},"request_id":{"type":"string","description":"Delivery request identifier; also returned in x-foundry-request-id."},"service_id":{"type":"string","description":"Canonical service identifier."},"generatedAt":{"type":"string"},"priceAtomic":{"type":"string"},"usageRights":{"type":"string"},"schemaVersion":{"type":"string"},"highResolution":{"type":"boolean"},"marketMovements":{"type":"object"},"service_version":{"type":"string","description":"Version of the invoked service."}},"additionalProperties":false}}}}},"responseSchema":{"type":"json","example":{"count":1,"items":[{"eventId":"evt_x402_launch_20250506","summary":"x402 uses HTTP 402 so agents can pay for APIs without accounts.","headline":"Coinbase launches x402 HTTP-native payments","freshness":"archive","evidenceTier":"TIER_A"}],"since":"2026-09-01T00:00:00.000Z","schema":"zfinia-newswire-1","product":"machine_economy_changes_since","truncated":false,"nextCursor":"2026-09-07T00:00:00.000Z","request_id":"example-request","service_id":"machine_economy_changes_since","generatedAt":"2026-09-07T00:00:00.000Z","priceAtomic":"10000","usageRights":"Caller may use returned JSON for their own systems.","schemaVersion":"zfinia-newswire-1","highResolution":true,"marketMovements":{"resourcesDelta":0},"service_version":"1"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_UAqvsFp3sW02-ohUYihj_","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a paginated delta feed of machine-economy intelligence events (news, infrastructure changes, agent payment activity) that occurred after a given cursor timestamp.","exampleAgentPrompt":"Pull me the latest machine economy intelligence from zFinia since my last checkpoint at 2026-09-01T00:00:00Z — up to 20 items, with full evidence fields included.","exampleUseCases":[{"title":"Daily agent ecosystem briefing","prompt":"What's new in the machine economy since yesterday at midnight? Give me up to 10 updates from zFinia with full resolution so I can see the supporting evidence."},{"title":"Continuous x402 protocol monitoring","prompt":"I last checked the zFinia feed at cursor '2026-09-07T00:00:00.000Z' — fetch me everything new since then, up to 50 items, so I can stay current on x402 and agent payment changes."},{"title":"Weekly infrastructure change digest","prompt":"Pull the zFinia intelligence delta for the past week starting from '2026-08-31T00:00:00Z', max 25 items, so I can summarize what changed in agent discovery and payment infrastructure for my weekly report."}],"resultDescription":"A JSON object containing an array of intelligence events (each with eventId, headline, summary, freshness, and evidence tier), a nextCursor for the next poll, a count of items returned, a truncated flag, usage rights, generatedAt timestamp, and optional market movement metrics. High-resolution mode adds full evidence fields to each item.","failureModes":["Missing cursor and since fields returns a validation error requiring at least one","Stale or malformed cursor string may return an empty items array or an error","maxItems exceeding 50 returns a schema validation error","Network or payment failure via x402 returns HTTP 402 or 5xx","Empty result set when no new events exist since the given cursor"],"whenToPreferThis":"Choose this endpoint when you need incremental, cursor-paginated updates on machine economy events rather than a full snapshot. It is purpose-built for polling loops where an agent already holds a prior nextCursor and wants only new material since that point, minimizing redundant data transfer and cost.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T06:34:18.823Z","isFirstParty":false}