Split decision: Limitless leads on Best prediction market API, ranked by live latency and uptime (95 ms vs 200 ms); Polymarket leads on Prediction market API rate limits, tested with a daily ramp (200 ms vs 314 ms).
Prediction market on Base mixing CLOB and AMM markets, from 5-minute crypto markets to long-dated events. Public REST API, rate limits undocumented.
The largest crypto prediction market, settled on Polygon via UMA optimistic oracle. CLOB-style order book hosted on the Polymarket gateway with sub-second publish latency for live odds.
| Provider | Warm book latency | Ramp added latency | Cold connect |
|---|---|---|---|
| Limitless | 314 ms | - | 8 ms |
| Polymarket | 200 ms | 5 ms | 6 ms |
Ramp tiers stay well inside documented budgets where they exist, at most 7 percent of Polymarket's published book allowance, and every run aborts at the first sign of sustained errors. This benchmark measures throttle onset behaviour at polite request rates, not maximum venue throughput.
| Provider | API latency (price endpoint) | Uptime 24h | Uptime 7d | Cold connect |
|---|---|---|---|---|
| Limitless | 95 ms | 100.0% | 100.0% | 8 ms |
| Polymarket | 200 ms | 100.0% | 100.0% | 6 ms |
Uptime here means our probes succeeded from three specific regions at a polite request rate. A venue can be up for us and degraded for you, especially during regional network incidents, and a brief blip between probe cycles can go unrecorded. Treat the panel as a measured signal, not a guarantee.
Limitless and Polymarket are compared on 2 shared OpenChainBench benchmarks. Limitless leads on Best prediction market API, ranked by live latency and uptime. Polymarket leads on Prediction market API rate limits, tested with a daily ramp. See the live table on this page for every metric.
On the Best prediction market API, ranked by live latency and uptime benchmark, Limitless leads at 95 ms versus Polymarket at 200 ms. Live measurement is updated continuously by the OpenChainBench harness.
On the Prediction market API rate limits, tested with a daily ramp benchmark, Polymarket leads at 200 ms versus Limitless at 314 ms. Live measurement is updated continuously by the OpenChainBench harness.
Every benchmark on this page uses the same open methodology, published at https://openchainbench.com/methodology. Data is CC-BY-4.0. Measurement harnesses are MIT-licensed.
Auto-generated pairs require: both providers in the same benchmark for seven consecutive days, at least 1000 samples per provider, observable third-party search demand, and a public /products/[slug] page on OCB. Editorially curated pairs (like this one) may publish early when search demand is high and data is accruing — panels with fewer than 100 samples are shown as provisional. The full pair ledger is versioned in the public repo.