AttestProtocol Hero Light

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The trust layer for Web3. One line of code.

AttestProtocol is an open, schema-based attestation infrastructure that allows developers, businesses, and authorities to create verifiable credentials on-chain and off-chain without deploying smart contracts. Whether it’s KYC, GitHub contributions, or community roles, AttestProtocol is the new universal proof layer that transforms trust from implicit assumptions into explicit, verifiable, and portable digital assets.

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Why Choose AttestProtocol?

Fast

Millisecond verification with optimized blockchain queries and caching

Simple

One-line integration with no smart contracts to deploy or maintain

Portable

Multi-chain support with the same API across all networks

Free

No tokens, no protocol fees - just pay standard blockchain gas costs

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Key Principles

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Quick Example

Here’s how simple it is to issue and verify attestations: 
import { AttestSDK } from '@attestprotocol/sdk';

const sdk = await AttestSDK.initializeStellar({
  secretKeyOrCustomSigner: process.env.STELLAR_SECRET_KEY,
  publicKey: process.env.STELLAR_PUBLIC_KEY
});

// Issue a KYC attestation
const attestation = await sdk.attest({
  schemaUID: 'kyc-basic',
  subject: userAddress,
  value: 'verified:true,level:enhanced,score:95',
  reference: 'kyc-2024-001'
});
That’s it. No smart contract deployments, no complex queries, just simple attestation workflows.

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Core Concepts

AttestProtocol is built on four fundamental concepts that work together to create a comprehensive trust infrastructure:

Attestations

Cryptographically signed claimsVerifiable statements made by trusted authorities about subjects. These are the core trust primitives that prove facts about users, contracts, or any entity on-chain.

Schemas

Structured data templatesDefine the format, types, and validation rules for attestation data. Schemas ensure consistency and interoperability across all applications.

Authorities

Trusted attestation issuersEntities authorized to create attestations. Can be individuals, organizations, DAOs, or smart contracts with permission to make verifiable claims.

Verification

Trust validation systemThe process of checking attestation authenticity, authority permissions, and data integrity to confirm claims are valid and trustworthy.

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How They Work Together

The four concepts create a complete trust ecosystem:
  1. Authorities register and gain permission to issue attestations
  2. Schemas define what data structures attestations can contain
  3. Attestations are created by authorities following schema specifications
  4. Verification ensures attestations are authentic and authorities are trusted
This architecture enables any application to implement sophisticated trust verification without deploying custom smart contracts or managing complex cryptographic operations.

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Use Cases

AttestProtocol supports a wide range of trust verification needs:

Identity & Compliance

  • KYC/AML verification status
  • Age and geographic restrictions
  • Proof of humanity and Sybil resistance
  • Professional licensing verification

DAOs & Governance

  • Voting weight by contribution
  • Reputation scoring systems
  • Verified proposals and voters
  • Participation tracking and rewards

Gaming & NFTs

  • Event attendance verification
  • Cross-game reputation portability
  • Item ownership and provenance
  • Achievement and milestone tracking

DeFi & Finance

  • Accredited investor verification
  • Credit scoring and lending eligibility
  • Portfolio composition attestations
  • Regulatory compliance status

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Supported Blockchains

AttestProtocol is chain-agnostic with native support across multiple networks:

Stellar
Native Soroban smart contracts with comprehensive indexing and testnet deployment.

Solana
Anchor-based programs with PDA management and SPL token integration.

Starknet
Cairo-based contracts for zero-knowledge scalable attestations.

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Developer Resources

TypeScript SDK

Full-featured SDK with comprehensive TypeScript support

API Reference

Complete API documentation with examples and schemas

CLI Tools

Command-line tools for issuing and verifying attestations

Schema Registry

Browse and create reusable attestation schemas

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Community & Support

Discord Community

Get support and connect with other developers

GitHub Repository

Contribute to the protocol and explore the codebase

Twitter Updates

Follow protocol progress and announcements
New to attestations? Check out our Core Concepts to understand how on-chain attestations work and why they’re the future of Web3 trust.