openchainbench

Official Python client for OpenChainBench, the live, reproducible benchmark suite for crypto infrastructure (RPC latency, bridge fees, perp venues, oracle deviation, and more).

The data served by openchainbench.com is published under CC-BY-4.0. Attribute with a link back to the benchmark page (pageUrl on every payload).

Install

pip install openchainbench

Requires Python 3.10+.

Quick start

from openchainbench import OpenChainBench

with OpenChainBench() as ocb:
    for bench in ocb.list_benchmarks():
        if bench.leader:
            print(f"{bench.title}: {bench.leader.name} -> {bench.value}")

Fetch one benchmark

from openchainbench import OpenChainBench

with OpenChainBench() as ocb:
    bench = ocb.get_benchmark("bridge-fee")
    print(bench.headline)
    for row in bench.rankings[:3]:
        print(row.slug, row.ms.p50, row.success_rate)

Fetch a time series

from openchainbench import OpenChainBench

with OpenChainBench() as ocb:
    series = ocb.get_series("bridge-fee", range="24h")
    for provider in series.providers:
        print(provider.name, provider.values[-1])

Filter by chain or region

bench = ocb.get_benchmark("network-fees", chain="ethereum")
series = ocb.get_series("network-fees", range="7d", chain="ethereum", region="eu-west")

Error handling

The client maps HTTP responses to a typed exception hierarchy so callers can react to intent rather than status codes.

from openchainbench import (
    OpenChainBench,
    NotFoundError,
    RateLimitError,
    APIUnavailableError,
)

with OpenChainBench() as ocb:
    try:
        ocb.get_benchmark("not-a-real-slug")
    except NotFoundError:
        ...
    except RateLimitError as exc:
        print(f"retry after {exc.retry_after_sec}s")
    except APIUnavailableError:
        # cold cache or Prom blackout, retry later
        ...

API reference

All models are immutable dataclasses (frozen=True).

Rate limits

The public API allows 60 requests per minute per IP. The client surfaces HTTP 429 as a RateLimitError with a retry_after_sec attribute.

Citation

If you use the data in a paper, post, or product, please link the benchmark page. The license is CC-BY-4.0. Every payload includes a ready-to-paste quote field that already contains the attribution.

Links

• Site: https://openchainbench.com
• Docs: https://openchainbench.com/docs
• Repository: https://github.com/ChainBench/OpenChainBench
• Issues: https://github.com/ChainBench/OpenChainBench/issues

License

MIT. The data fetched from the API stays under CC-BY-4.0; this client license only covers the code.