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Self

$10,000

self.xyz
selfprotocol

About

Self Protocol is a privacy-first, open-source identity protocol powered by zero-knowledge proofs. It enables developers to verify usersโ€™ identity and humanity (Sybil resistance, age, country, sanctions checks) without exposing private data. Now with Aadhaar support, participants can use Self to prove details like: ๐Ÿ™‹โ€โ™€๏ธ Name ๐Ÿ‡ฎ๐Ÿ‡ณ Aadhaar or passport verification ๐Ÿ”ž Age or age range ๐Ÿšซ Not on the OFAC sanctions list With just a few lines of code via the Self.xyz SDK, proofs can be verified onchain (Celo) or offchain. Build trust into your project while keeping user privacy intact.

Prizes

๐Ÿ† Best Self onchain SDK Integration โธบ $9,000
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1st place
$5,000
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2nd place
$2,500
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3rd place
$1,500
We are looking for interesting use cases of using the Self onchain SDK in your contracts. Self Smart contracts verify proofs, manage a merkle tree of identity commitments and allow for onchain disclosure of data while guaranteeing the permissionless aspect of the protocol. Using the Self.xyz SDK, allows a user to disclose their country, age (or range), that they are not on OFAC or from a sanctioned country, and verify that proof that onchain on the Celo network, or offchain, without sharing any private information with third parties. Since this month, you can not only prove your identity with your passport or ID, but Self has just launched Aadhaar card support, and we want to see your best use cases!

Qualification Requirements

To be eligible, projects must: - implement Self onchain SDK (right now only on Celo mainnet and testnet) - proof needs to work

๐Ÿ† Best Self offchain SDK Integration โธบ $1,000
Integrate Self offchain SDK into your application so users can prove their identity! Check out the Quickstart to see how quickly you can implement the Self SDK into your dApp.

Qualification Requirements

To be eligible projects must: - implement Self offchain SDK - proof needs to work

Resources

Website
https://self.xyz/
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Docs
https://docs.self.xyz/
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Playground
https://playground.self.xyz/
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Testing Playground (use with mockpassport)
https://playground.staging.self.xyz/
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Workshop

๐Ÿ› ๏ธ Self Protocol Workshop

Learn how to integrate Self Protocol, a zero-knowledge identity layer, into your apps. This workshop will walk you ...

This workshop is happening in-person

05:00 PM IST โ€” Friday, Sep 26, 2025 in Workshop Room 2