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Provable Ethereum API Join the chat at HitCount MIT Licence Build Status


Thanks to this Ethereum API, enriching your smart-contracts with external data using Provable is very easy!

In Solidity it is as simple as inheriting the usingProvable contract that you'll find in this repository.

This will provide your contract with functions like provable_query(...), which make it trivial for you to leverage our oracle technology straight away.

If you're using the Remix IDE it's even easier still - simply import the latest version of Provable into your contract like so:

import "";

Or if you need a specific version of the API, import that directly via:

import "";

There are versions of the API targetting the following solc compilers:


To learn more about the Provable technology, please refer to our documentation here.



:computer: See It In Action!

For working examples of how to integrate the Provable API into your own smart-contracts, head on over to the Provable Ethereum Examples repository. Here you'll find various examples that use Provable to feed smart-contracts with data from a variety of external sources.

There are even some examples here showing you how you can use Provable in a local Truffle development environment!



:mega: Get In Touch!

If you want to ask us something, or tell us something, there's loads of ways to get in touch:

We have a Twitter

And a Gitter

Or a Website

Alongside a Youtube

Plus a Github



:radioactive: A Note Regarding Serpent:

:skull: CAUTION: It is highly recommended to avoid using Serpent, especially in production. The serpent version of the Provable API herein remains for historical reasons but support for it is no longer maintained. Serpent is considered outdated and audits have shown it to be flawed. Use it at your own risk!


Last updated on 05 Dec 2022

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