0xFast – Faster Web3 APIs
Excited to showcase 0xFast to HN! Built using a new indexing system designed for Web3 data, 0xFast outperforms the most popular web3 API platforms, while also being 3x cheaper.
In plain words
0xFast provides Web3 APIs built on a new indexing system for blockchain data. It is designed for developers building on blockchain platforms who need faster API performance and lower costs. The service claims to outperform popular Web3 API competitors while charging significantly less.
written from the facts on this page · September 2026
Does the same job
all alternatives →- IBI Built 0xFast Stream – 100x Faster Ethereum Block Downloads2022 · manishrjain.com · ▲13
Getting web3 data out of Ethereum nodes or node services is excruciatingly slow (at least days if not weeks). I had wanted a way to just download the blocks quickly since I started exploring the web3 space. Took me a bunch of trial and errors to get to a way where I can parse all the blocks since genesis within 12 hours. But, instead of moving on to the next thing, I put this service together over the last few days, so everyone can benefit.

- FFFaster FastAPI with simdjson and io_uring on Linux 5.192023 · github.com · ▲290
A few months ago, I benchmarked FastAPI on an i9 MacBook Pro. I couldn't believe my eyes. A primary REST endpoint to `sum` two integers took 6 milliseconds to evaluate. It is okay if you are targeting a server in another city, but it should be less when your client and server apps are running on the same machine. FastAPI would have bottleneck-ed the inference of our lightweight UForm neural networks recently trending on HN under the title "Beating OpenAI CLIP with 100x less data and compute". (Thank you all for the kind words!) So I wrote another library. It has been a while since I have…



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