Data & APIs
Prediction-market directory
Opinion Open API
Explore the product, inspect its sources and compare the evidence. Company contributions and retained historical observations stay clearly dated.
VK-744aa046aa5ed15f · Not assessed · First-party product research available
Data & APIs
What Opinion Open API does
Opinion Labs' HTTP API at openapi.opinion.trade for BNB Chain markets, prices, order books and history, with one API key shared by WebSocket and CLOB SDKs.
Historical catalogue statement · Snapshot: . Source snapshot (opens in a new tab)
- Historical category
- Data & APIs
- Reported venues
- Opinion
- Historical pricing
- Free; public 5 req/s, keyed 15 req/s
Product details and sources
Research checked:
Developer SDK
A software development kit or language client is described.[1]
Public page content was obtained during the dated check. Reachability does not establish continuing service availability. Product descriptions reflect public source statements. Classification and summaries are by Vultax; capabilities have not been tested as part of this listing.
Research sources, dates and retained evidence (5)
[1]Homepage (opens in a new tab)
https://docs.opinion.trade/developer-guide/opinion-open-api/overview
Collected:
Retained page digest
SHA-256 5b164090d482f973929e8f8a186d793d343314570b3655520c9667251cff2be0
[2]Pricing (opens in a new tab)
https://docs.opinion.trade/incentive-plans/vip-program
Collected:
Retained page digest
SHA-256 33705e0577d4062bed7cf38070e6ad19ba2886779a32f925d3dbc754aa90d26e
https://docs.opinion.trade/about-opinion/about-opinion
Collected:
Retained page digest
SHA-256 8b2fff9af7d8f0a7c439a066ef0e7f50db9ec53fc22e45d32bda4a6920305b20
https://docs.opinion.trade/legal/terms-of-use
Collected:
Retained page digest
SHA-256 dbd8140f2bf1e644fab1a83850487df856157fe2f5a67cfe00107e4e753dc7ca
[5]Retained homepage (opens in a new tab)
https://docs.opinion.trade/developer-guide/opinion-open-api/overview
Collected:
Retained page digest
SHA-256 e89c8e5abdc757844c94d73e784e7ec60df33d4e578e62913f2d4252c511cb44
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Explore related profiles
Shared category or platform context · unpaid order
Historical product profile and catalogue sources
Historical product profile
Catalogue snapshot: · Catalogue's own check date:
Opinion Labs' HTTP API at openapi.opinion.trade for BNB Chain markets, prices, order books and history, with one API key shared by WebSocket and CLOB SDKs.
- Name in the historical catalogue
- Opinion Open API
- Reported category
- Data & APIs
- Reported venues
- Opinion
- Historical pricing statement
- Free; public 5 req/s, keyed 15 req/s
- Execution claim
- Source says it executes trades
- Open-source claim
- Source says no
- Backer statement
- Not stated
- Historical status statement
- live
Source status note: Overview page loaded 2026-08-27 with base URL, auth, rate limits and Python CLOB SDK mention.
Repository links reported by the catalogue:
Not stated.
These are the catalogue contributors' dated statements, including their qualifications. They do not establish present availability, total cost, legal ownership or licensing. Read the exact source snapshot (opens in a new tab).
Additional references listed by the catalogue
Profile history and sources
Source dates and collection dates are distinct. The catalogue snapshots retain what the source reported; repeated identical snapshots are not presented as product changes. Company contributions and claim decisions enter the history only after publication.
Collected:
Terms researched
Product research source; retained body SHA-256 dbd8140f2bf1e644fab1a83850487df856157fe2f5a67cfe00107e4e753dc7ca. Collection is not an assessment or product launch date.
Collected:
Pricing researched
Product research source; retained body SHA-256 33705e0577d4062bed7cf38070e6ad19ba2886779a32f925d3dbc754aa90d26e. Collection is not an assessment or product launch date.
Collected:
About researched
Product research source; retained body SHA-256 8b2fff9af7d8f0a7c439a066ef0e7f50db9ec53fc22e45d32bda4a6920305b20. Collection is not an assessment or product launch date.
Collected:
Homepage researched
Product research source; retained body SHA-256 5b164090d482f973929e8f8a186d793d343314570b3655520c9667251cff2be0. Collection is not an assessment or product launch date.
Collected:
Retained homepage researched
Product research source; retained body SHA-256 e89c8e5abdc757844c94d73e784e7ec60df33d4e578e62913f2d4252c511cb44. Collection is not an assessment or product launch date.
Source date:
Package prepared:
Historical catalogue snapshot
Source verification date: 2026-08-27. Free; public 5 req/s, keyed 15 req/s.
Source date:
Package prepared:
Historical catalogue snapshot
Source verification date: 2026-08-27. Free; public 5 req/s, keyed 15 req/s.
Record evidence and export
Catalogue dataset SHA-256: 81e91f65ba7ff67a205fa6ff367bce66cd74934c25d200996572a34b02054506
The digest identifies the retained source bytes. A link may now serve a different page; a digest alone does not provide access to the retained evidence.
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Historical descriptions and catalogue claims: Kairos contributors, CC BY 4.0. Vultax adds source matching, presentation and factual comparisons. Attribution, licences and coverage.