VOL. XCIV, NO. 247
BEST INVESTING TOOLS COMPARISON
Tool details checked August 23, 2026
Tool Comparison
Open Payments (CMS) vs Perplexity Finance
Pick Open Payments (CMS) instead if
Open Payments (CMS)
Free · Web · API
- You want regulatory filings monitoring and official sources.
Start here
Perplexity Finance
Free • From $20/mo · Web · Mobile · API
- Delayed quotes won't cut it; you need real-time data
- You do a lot of your research from your phone
- You want screeners, watchlist, and news.
Skip both if: Neither one clicks with how you research; there are strong third options.
See alternativesOutbound links may include affiliate or sponsor codes.
Our take
The bottom line
Open Payments (CMS) and Perplexity Finance cover a lot of the same ground (2 shared categories, APIs & data feeds and data visualizations), so for the basics you won't go far wrong with either. Perplexity Finance simply does more: 12 categories to Open Payments (CMS)'s 4, including screeners, watchlist, and news, plus a mobile app. Open Payments (CMS) counters by being completely free.
What readers say
Open Payments (CMS)
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Perplexity Finance
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Key differences at a glance
- Real-time data
- Perplexity Finance
- Broader coverage
- Perplexity Finance12 vs 4 categories
- Mobile app
- Perplexity Finance
- Global coverage
- Perplexity Finance
- Free plan
- Both
See for yourself
How they stack up
The side-by-side table: pricing, platforms, data, and coverage at a glance.ShowHide
How they stack up
The side-by-side table: pricing, platforms, data, and coverage at a glance.| Attribute | ||
|---|---|---|
| Pricing & plans | ||
Starting price | Free | Free • From $20/mo |
Free tier | Yes | Yes |
Free trial | — | — |
Plan limits | — | 6 limits: Standard (Free): pro searches: Limited, Pro: pro searches: Extended access +4 more |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | Yes |
API access | Yes | Yes |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | — | Retail Traders, Pro Retail +6 more |
Categories covered | 4 | 12 |
Regions | North America | North America, APAC |
| Data & capabilities | ||
Data quality | — | Latency: Real-time |
Data partners | — | 6 partners: Financial Modeling Prep, Unusual Whales +4 more |
Capabilities | — | Universe builder and AI summaries: Filings and News |
Security | — | SOC2 and Status page |
| Try it | Visit Open Payments (CMS) | Visit Perplexity Finance |
Where each one shines
What Open Payments (CMS) and Perplexity Finance each do best.ShowHide
Where each one shines
What Open Payments (CMS) and Perplexity Finance each do best.What Open Payments (CMS) does best
- Search tools across official Sunshine Act records for payments and ownership interests reported by drug manufacturers, device manufacturers, and group purchasing organizations.
- Comparison tools for General Payments, Research Payments, and Ownership or Investment Interests across program years.
- Lookup tools for physicians, non-physician practitioners, teaching hospitals, manufacturers, products, payment categories, dates, and dollar amounts from the public web tool.
- Charts, filters, and downloadable tables to move from a provider, company, or product question into the underlying records.
- Download support for bulk datasets when healthcare, pharma, medtech, policy, or compliance workflows need repeatable offline analysis.
What Perplexity Finance does best
- Finance pages for stocks, ETFs, mutual funds, crypto, options, charts, news, financial data, analyst estimates, ownership data, filings, and earnings context.
- Support for asking cited finance questions that can reference SEC filings, company documents, news, and third-party finance datasets.
- Upgraded charts with volume, OHLCV tooltips, candlestick or area views, comparison overlays, moving averages, and custom date ranges.
- Tools for building watchlists and review AI-generated briefings that combine watchlist price movement with relevant market news.
- Screening for stocks in natural language with filters, columns, sorting, and coverage that includes U.S. and Indian equities.
Every detail we compared
Every tracked attribute for Open Payments (CMS) and Perplexity Finance, side by side.ShowHide
Every detail we compared
Every tracked attribute for Open Payments (CMS) and Perplexity Finance, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | Other | StocksETFsMutual FundsCryptosOptions |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Target audience | Not specified | Retail TradersPro RetailLong-term InvestorsDay TradersStudents/ResearchersFinancial AdvisorsAnalystsInstitutional Investors |
Regions | North America | North AmericaAPAC |
Coverage details | Countries: US | Countries: US and INIdentifiers: Ticker |
| Data | ||
Data freshness | Not specified | Real-time |
Data partners | Not specified | Financial Modeling PrepUnusual WhalesQuartrFiscal.aiS&P Global Market IntelligenceMorningstar |
| Access & integrations | ||
API protocols | REST | REST |
API auth & delivery | Auth: None | Auth: APIKeyDocs |
Export formats | CSVJSON | Not specified |
| Plans & trust | ||
Security & compliance | Not specified | SOC2Status page |
Capability signals | Not specified | Universe builderAI summaries: Filings and News |
Vendor & support | Centers for Medicare & Medicaid Services (CMS), U.S. Department of Health & Human ServicesCountry: USSupport: Email and Phone | Perplexity AI, Inc.Support: Email, Chat, and Forum |
Curation ratings | Methodology 5/5Reliability 5/5UX 4/5 | Not specified |
Green tags are exclusive to that tool in this comparison.
What you'll actually pay
Plans, billing, trials, and per-month pricing for both tools.ShowHide
What you'll actually pay
Plans, billing, trials, and per-month pricing for both tools.| Tier | ||
|---|---|---|
| Free plan | Free | Free“Standard (Free)”pro searches: Limited |
| Entry paid plan | — | $20/mo“Pro”pro searches: Extended access · annual price usd: 200 |
| Tier 2 | — | $200/mo“Max”pro searches per day: Unlimited · annual price usd: 2,000 |
| Top plan | — | Subscription“Agent API finance_search”tool call pricing: $5 per 1,000 invocations |
Questions we keep getting
What's the difference between Open Payments (CMS) and Perplexity Finance?
Open Payments (CMS) leans toward APIs & data feeds, data visualizations, and regulatory filings monitoring, while Perplexity Finance puts more weight on screeners, watchlist, and data visualizations. They overlap in 2 categories, so for most people it comes down to workflow preference and price.
How much do Open Payments (CMS) and Perplexity Finance cost?
Good news: both Open Payments (CMS) and Perplexity Finance have free plans, so you can run them side by side and only pay if you hit a wall.
Can I use Open Payments (CMS) or Perplexity Finance on my phone?
Perplexity Finance lists a dedicated mobile app, so it travels better. Open Payments (CMS) doesn't list a dedicated mobile app; its documented access is web and API.
Do Open Payments (CMS) and Perplexity Finance have APIs?
Yes, both offer API access, so developers and quants can pull data programmatically or wire up their own integrations.
Should I choose Open Payments (CMS) or Perplexity Finance?
It depends on what you're after. Pick Open Payments (CMS) if regulatory filings monitoring and official sources matter to you; go with Perplexity Finance if you'd rather have screeners and watchlist. And if you only need the basics both share, let price decide.
What asset classes do Open Payments (CMS) and Perplexity Finance cover?
Open Payments (CMS) covers other. Perplexity Finance covers stocks, ETFs, and mutual funds.
Does Open Payments (CMS) or Perplexity Finance have real-time data?
Perplexity Finance offers real-time data, which matters if you trade actively. Open Payments (CMS) runs on delayed or end-of-day data, which is perfectly fine for longer-term investors who don't live and die by the tick.
Which covers international markets: Open Payments (CMS) or Perplexity Finance?
Perplexity Finance has documented international coverage (North America and APAC), so it's the safer bet if you hold non-US stocks. Open Payments (CMS) is more region-specific, mainly North America.
Can I export data from Open Payments (CMS) and Perplexity Finance?
Open Payments (CMS) exports to CSV. Perplexity Finance is stingier about getting data out.
Is Open Payments (CMS) or Perplexity Finance better for day trading?
Perplexity Finance is the one positioned more for active traders. Open Payments (CMS) is the better fit if you care less about fast trading workflows and more about a calmer research process.
Which has a better stock screener: Open Payments (CMS) or Perplexity Finance?
Perplexity Finance has a stock screener for surfacing ideas; Open Payments (CMS) doesn't, and focuses its energy elsewhere.
Keep researching
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Curation & Accuracy
This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).
Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.