Documentation-based comparison
| Finnhub /press-releases | Selected major company developments; several named wires | Symbol query; majorDevelopment array; full text for Enterprise | Selection rules, issuer universe and entitled text |
| newsfilter Query API | Named wire source IDs in catalog | Search metadata by source and other fields | Per-source completeness and full-text permission |
| PR Newswire publisher feeds | Official publisher content route | Separate full-text XML / HTML offerings | Contract, fields, region, history and usage |
| Prezly public feeds | Public published stories in one newsroom | JSON and RSS on newsroom domain | Actual newsroom coverage and reuse terms |
| Synoptic | Specific accessible streams | Stream posts over REST / WebSocket / MCP | Current source scope, API access and content rights |
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Source names do not establish identical coverage
newsfilter lists prNewswire, globenewswire, businesswire and accesswire source identifiers. Finnhub describes major developments from several wires and exchanges. Those facts support a shortlist, not a claim that either returns every release on every wire.
Ask for a sample that can fail the requirement
Choose an issuer announcement with tables, a multi-company announcement, a correction and a non-English release when those matter. Inspect body completeness, timestamps, issuer fields and original URLs. Verify an absence by checking account entitlement and filters before concluding that a provider missed the release.
Keep commercial terms out of a guessed ranking
The reviewed pages do not provide a comparable all-in quote for this exact workload. Request an offer for the same issuers, sources, history, users and reuse rights. Add the costs of support and recovery work only when you have actual estimates, not generic API popularity scores.
Source notes
- Finnhub official API specification ↗
Major press releases endpoint, source names, Enterprise full-text statement and majorDevelopment schema.
- newsfilter source catalog ↗
Documented source identifiers for PR Newswire, GlobeNewswire, BusinessWire and AccessWire.
- newsfilter request/response format ↗
Metadata schema and source-filtered queries; does not establish downstream full-text rights.
- PR Newswire RSS and publisher feed options ↗
Distinguishes headline/summary/link RSS from full-text XML and HTML publisher feeds.
- Prezly public feed documentation ↗
Newsroom-scoped public JSON/RSS feeds, cache behavior and exclusion of unpublished/private stories.
- Synoptic REST reference ↗
Accessible stream discovery, follower requirement, post retrieval and limits.
The Synoptic workflow
Evaluate a Synoptic release workflow
Start with the sources and fields the monitoring task requires.
Evaluate a Synoptic release workflow