Evaluate the full output quality on the free tier before committing. No credit card required. Sign up with your email — no password to set, just a sign-in link.
Full S&P 500 access, no symbol restrictions. The daily request cap works out to roughly 250 symbols at full depth — plenty to evaluate the product properly.
The full S&P 500 universe, every lookback, every day — with room to spare for historical date queries. Cancel any time.
date parameter| Feature | Free | Pro |
|---|---|---|
| Data coverage | ||
| S&P 500 symbols accessible | ✓ All ~500 | ✓ All ~500 |
| All lookback periods† 5 / 10 / 15 / 20 / 25 / 30 / 40 / 50 days | ✓ | ✓ |
| All forward windows‡ 3 / 5 / 10 / 15 days | ✓ | ✓ |
| Update frequency | Daily | Daily |
| Historical match depth | 10+ years | 10+ years |
| Output fields | ||
| Outcome distribution (P05–P95) | ✓ | ✓ |
| Positive return rate | ✓ | ✓ |
| Reliability score | ✓ | ✓ |
| Match quality score | ✓ | ✓ |
| Historical match count + date range | ✓ | ✓ |
| MAE + MFE percentiles | ✓ | ✓ |
| Machine-readable tags | ✓ | ✓ |
| LLM-ready commentary | ✓ | ✓ |
| API access | ||
| Daily request limit~250 symbols/day at full depth on Free; full snapshot 7× over on Pro | 2,000 | 30,000 |
| Rate limit reset | Midnight UTC | Midnight UTC |
| API key auth | ✓ | ✓ |
| JSON response format | ✓ | ✓ |
| Support | ||
| Email support | ✓ | ✓ |
| Priority support | — | ✓ |
lookback parameter.Full access to the entire S&P 500 universe — no symbol restrictions. All 8 lookback periods, all 4 forward windows, every output field including the LLM-ready commentary. The only limit is 2,000 requests per day, which covers roughly 250 symbols (half the S&P 500) at full analytical depth, every day. No credit card required.
No. Free tier access covers the entire S&P 500 universe — query any symbol. The only constraint is the daily request limit (2,000/day), not which symbols you can access.
Data is updated daily after each market close. The exact time varies — check the generation_timestamp field in any API response to see when that output was last computed. More detail on the FAQ page.
Daily request limits reset at midnight UTC. Each API call to /v1/analysis/{symbol}-{exchange} counts as one request. If you exceed your daily limit, requests return a 429 response until the limit resets.
Yes — you can use Konseki API output within your own applications, trading tools, research workflows, and AI assistants, including commercial products. The restriction is on redistributing the raw data itself as a standalone data product. See the Terms of Service for details.
Cancel any time from your account dashboard — your access continues until the end of the current billing period. No questions asked, no partial refunds for unused days. If you have trouble accessing your dashboard, email hello@konseki.io and we'll handle it directly.
Not currently. Pro is billed monthly with no annual commitment required. Email us if you have specific requirements — we're open to discussing options for high-volume or institutional use cases.
The lookback period is how many days of recent price history the engine uses to find historical analogs — you specify this with the lookback parameter. The forward window is how many days ahead each outcome distribution measures. You don't need to specify a forward window: every API response includes all 4 forward windows (3, 5, 10, and 15 days) nested inside, for whichever lookback you requested.
Yes. Every day's output is stored as a permanent, immutable snapshot. Add a date parameter to any request to retrieve that day's analysis instead of the latest. Useful for backtesting and validating how the engine's output looked on a specific historical date.
No credit card required
Full output quality on the free tier. No artificial feature limits — just symbol count and request volume.