{"uid":"cap_kM9_VyVzq_4Zo3hnM9RTj","slug":"gloom-finance-terminal-catalyst-changes-api-18141973","name":"Gloom Finance Terminal - Catalyst Changes API","description":"Gloom is a free, open-source finance terminal for desktop and TUI with charts, news, filings, portfolios, alerts, and plugins.","url":"https://api.gloom.sh/v1/catalysts/changes?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["since"],"properties":{"since":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"data":[{"type":"approval","agency":"FDA","source":"fda_approvals","status":"approved","symbol":"AAPL","country":"US","summary":"Labeling","revision":1,"externalId":"NDA020766:SUPPL:22","jurisdiction":"US"}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.03","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","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":"$0.03/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_IjlO1GtYyiVzSwjjVQ41p","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Retrieves recent regulatory and approval catalyst changes (e.g. FDA approvals) for financial securities since a given timestamp","exampleAgentPrompt":"Pull all regulatory catalyst changes since yesterday from Gloom — I want to see any new FDA approvals or status changes for US equities so I can review them before the market opens.","exampleUseCases":[{"title":"Pre-market biotech catalyst scan","prompt":"Check Gloom for any FDA approval or regulatory catalyst changes that happened since Monday morning for US biotech stocks — I want to see what moved before I review my portfolio."},{"title":"Automated portfolio catalyst alerts","prompt":"Every morning, fetch the latest catalyst changes from Gloom since midnight and flag any FDA approvals or rejections affecting stocks in my watchlist so I can act before open."},{"title":"Investment research regulatory timeline","prompt":"I'm doing research on AAPL — can you pull all the regulatory catalyst changes from Gloom since the start of this year so I can build a timeline of their approval history?"}],"resultDescription":"Returns an array of catalyst change objects, each containing the catalyst type (e.g. 'approval'), the regulatory agency (e.g. 'FDA'), the source database, current status, the affected stock symbol, country, a plain-language summary, a revision number, an external regulatory ID, and the jurisdiction. Results are filtered to events occurring after the provided 'since' timestamp.","failureModes":["Missing required 'since' query parameter returns a validation error","Invalid or malformed date string in 'since' causes a 400 error","No catalyst changes found for the given time window returns an empty data array","Rate limiting or payment failure (x402) returns a 402 Payment Required response","Service downtime returns 503 or connection timeout"],"whenToPreferThis":"Use this endpoint when you need structured, machine-readable regulatory catalyst events (especially FDA approvals) for equities, filtered by time. Prefer this over news APIs when you want only regulatory/approval-type catalysts with structured metadata (agency, status, jurisdiction, external ID) rather than raw news text. Ideal for quantitative screening, portfolio alert systems, or research tools that need clean, normalized catalyst data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-11-01T06:45:14.426Z","isFirstParty":false,"canonicalSlug":"gloom-finance-terminal-catalyst-changes-api-18141973"}