Prediction-market directory
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Compare the statements and evidence we have collected. Each column retains its source dates; historical claims and missing fields are visible.
Catalogue fields are historical source statements. Page metadata may refer to a publisher or embedded product. Neither establishes the verified legal operator, present pricing, regulatory status or quality of a service.
Download this comparison as CSV| Field | Opinion Open API VK-744aa046aa5ed15f | 0xArchive VE-a3bf05420a04d68d |
|---|---|---|
| Product overview | 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. | 0xArchive supplies current and historical trading data for Hyperliquid and Lighter. Developers and researchers can query its archive, replay past activity or purchase files for analysis. Its scope includes Hyperliquid HIP-4 outcome markets alongside perpetuals, spot and HIP-3 instruments. |
| Research classification | Data & APIs | Data & APIs |
| Resource type | Documentation | Product or service |
| Platforms named in product context | Opinion | Hyperliquid, Lighter |
| Documented capabilities | Developer SDK: A software development kit or language client is described. | Data API: REST queries cover market records, order books, transactions and other documented schemas.; WebSocket delivery: Live subscriptions and historical replay use WebSocket routes.; Data exports: Parquet files are available by market, schema and UTC date range; an API subscription is not required for a quoted file purchase.; Developer SDK: The site links language SDKs, a CLI and MCP tooling for application and research workflows.; Historical data: Free access has a rolling 30-day history window; Build and higher plans open the retained archive. Exact market and schema coverage varies.; Order book tools: The documentation distinguishes aggregated depth from individual resting orders and order lifecycle records. |
| Latest sourced pricing | Free; public 5 req/s, keyed 15 req/s | A continuing Free plan is offered alongside Build at $49/month, Pro at $199/month and Scale at $799/month. Annual billing has different effective rates. Historical file exports can be purchased separately by quote. |
| Developer and product resources | About the product: https://docs.opinion.trade/about-opinion/about-opinion; Linked source repository: https://github.com/opinion-labs/opinion-clob-sdk | Official homepage: https://0xarchive.io/; Pricing: https://0xarchive.io/pricing; About the product: https://0xarchive.io/about; Documentation: https://docs.0xarchive.io/ |
| Website research check | 2026-10-31T02:08:09.376002+00:00; Public page content was obtained during the dated check. Reachability does not establish continuing service availability. | 2026-10-31T02:07:39.209132+00:00; Public page content was obtained during the dated check. Reachability does not establish continuing service availability. |
| Published contributor description | Not supplied | Not supplied |
| Contributor pricing statement | Not supplied | Not supplied |
| Contributor details published | Not supplied | Not supplied |
| Profile claim | No active approved claim | No active approved claim |
| Record evidence | Historical catalogue only | First-party website observation |
| Historical product description | 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. | Not captured |
| Name in the historical catalogue | Opinion Open API | Not captured |
| Reported category | Data & APIs | Not stated |
| Reported venues | Opinion | Not stated |
| Historical pricing statement | Free; public 5 req/s, keyed 15 req/s | Not stated |
| Open-source claim | Source says no | Not stated |
| Execution claim | Source says yes | Not stated |
| Historical status statement | live | Not captured |
| Historical backer statement | Not stated | Not stated |
| Catalogue-reported repository | Not stated | Not stated |
| Catalogue's own check date | 2026-08-27 | Not stated |
| Catalogue snapshot date (UTC) | 2026-09-08 | Not stated |
| Operator name in page metadata | Not captured | Not captured |
| Location in page metadata | Not captured | Not captured |
| Founding date in page metadata | Not captured | Not captured |
| Page-declared statements | 0 | 0 |
| Linked repository records | 0 | 0 |
| Vultax assessment | Not assessed | Not assessed |
| Website | https://docs.opinion.trade/developer-guide/opinion-open-api/overview | https://0xarchive.io/signup |
| Evidence | View source (opens in a new tab) Snapshot: Complete profile and history | View source (opens in a new tab) Observed: Complete profile and history |
Historical descriptions and catalogue claims: Kairos contributors, CC BY 4.0. Vultax adds source matching, presentation and factual comparisons. Attribution, licences and coverage.