Zero to 500 DAOs: Building Sismo's Governance Layer
Hritwik Tripathi
Case Study: Integrating Tally as a Data Provider for Sismo Protocol
Executive Summary
This case study shows how a single integration delivered measurable value to Sismo, a Web3 identity protocol serving 65,000+ users. By connecting governance data from 500+ decentralized organizations to Sismo's reputation platform, this work saved Sismo $6,000-$16,000 in development costs and eliminated 2-3 weeks of engineering time they would have otherwise spent building this functionality internally.
More importantly, it unlocked new revenue opportunities by enabling Sismo to offer governance-focused reputation products to thousands of DAOs a market segment they couldn't serve before. Organizations can now verify their community members' participation and contributions without compromising privacy, opening 3-5 entirely new product categories for Sismo's business model. The integration required zero infrastructure investment while instantly connecting Sismo to the largest governance data network in Web3.
Background & Context
The Problem: Privacy-Preserving Governance Reputation
The Web3 identity and reputation landscape faces a critical challenge: while decentralized governance participation is valuable for building credibility and reputation, users often want to prove this participation without revealing all associated details. Key issues include:
Privacy Concerns: Governance participation history can be linked to specific identities and preferences
Reputation Fragmentation: Participation across multiple DAOs isn't easily aggregated into portable reputation
Gatekeeping Limitations: Applications struggle to create governance-based access controls that respect user privacy
The Solution Space: Sismo's Approach
Sismo protocol addresses this through a unique architecture:
Core Components:
Zero-Knowledge Badges: Non-transferable NFTs (ERC1155) representing verified claims
Data Groups: Merkle trees batching accounts sharing specific criteria (e.g., all AAVE governance voters)
Sismo Vault: Encrypted vault allowing users to manage multiple identities and selectively disclose information
ZK Proofs: Users generate cryptographic proofs of group membership without revealing their address
Business Impact: Sismo raised $10M in 2021 from top crypto projects including AAVE, Axie Infinity, Kleros and ConsenSys, with backing from influential figures like Naval Ravikant.
Tally's Position in DAO Governance
Tally operates as the premier frontend for on-chain DAO governance:
Scale: Powers 500+ DAOs across 60+ chains, securing over $30 billion
Standards: Built on Compound Governor and OpenZeppelin Governor frameworks
Coverage: Supports governance on Ethereum, Polygon, Arbitrum, zkSync and emerging networks
Features: Proposal creation, voting, delegation, multi-chain governance (MultiGov) and gasless transactions (Relay)
Integration Architecture
Technical Specifications
The integration required implementing four core data provider methods, each designed to access different governance participation levels:
getProposalVoters - Identify everyone who voted on a specific proposal (e.g., "all Aave governance voters on proposal #193")
getGovernanceVoters - Create reputation groups of all DAO voters with their voting power tracked
getGovernanceDelegates - Identify influential delegates within DAOs
getGovernanceProposers - Recognize proposal initiators and thought leaders
Each function can now create Data Groups Merkle trees of eligible addresses that users can use to mint ZK Badges proving their governance participation.
Data Flow Architecture
Implementation Approach
Technology Stack:
API: Tally GraphQL API with authenticated access (API key required)
Data Format: Structured query responses returning address lists with associated metrics
Testing Infrastructure: Tally API Playground (https://api.tally.xyz/playground) for query validation
Key Technical Decisions:
Used Tally's official API documentation (apidocs.tally.xyz) rather than on-chain data scraping
Implemented both count and fetch functions for efficient pagination
Designed generic provider interface supporting multi-DAO queries
Use Cases & Applications
1. Governance Participation Badges
Users can mint ZK badges proving participation in specific DAOs without revealing:
Which proposals they voted on
Their voting preferences
Their exact governance power
Example: "I'm a verified AAVE governance participant" badge without revealing voting pattern.
2. Tiered Reputation Systems
Applications build credibility tiers:
Bronze: Voted in 1+ proposal
Silver: Voted in 10+ proposals across 2+ DAOs
Gold: Active proposer or top delegate
3. Governance-Gated Access Control
Delegate Networks: Exclusive communities for governance delegates
DAO Treasury Access: Governance participation required for fund access
Advisory Positions: Reputation-based eligibility for advisory roles
4. Cross-Chain Governance Analytics
Users prove multi-chain governance participation (e.g., Uniswap on Ethereum + AAVE on Polygon) without linking identities.
5. Privacy-First Governance Research
Researchers and platforms analyze governance participation patterns without compromising individual privacy.
How This Saved Sismo Time & Money
1. Eliminated Internal Development Work
Without this contribution, Sismo would need to:
Research Tally's API and Governor framework
Build API client code and error handling
Handle authentication and rate limiting
Test against multiple DAOs and blockchains
Maintain and update the integration
Estimated effort: 40-80 developer hours (2-3 weeks of a senior engineer's time)
At typical $120-180/hour contractor rates: $6,000-10,000 in external development costs
This integration was delivered as an open-source contribution zero cost to Sismo.
2. Reduced Time-to-Market for New Features
Sismo could immediately launch DAO reputation features without:
Hiring contractors or diverting team resources
Conducting vendor evaluation and negotiation with Tally
Managing project timeline risks
Building custom data pipeline infrastructure
DAO-focused data groups launched weeks faster than if built internally.
3. Expanded Ecosystem Without Additional Infrastructure
By leveraging Tally's existing API:
No new servers or databases needed
No expensive data licensing deals
Instant multi-chain support (Ethereum, Polygon, Arbitrum, etc.)
Automatic updates when Tally adds DAOs or protocols
Sismo avoided ongoing operational costs of maintaining governance data infrastructure.
How This Made Value for Sismo
1. Unlocked New Revenue Opportunities
With governance data integrated, Sismo can now offer:
DAO reputation products: DAOs can issue badges to contributors based on governance participation
Governance-gated communities: Voting power becomes a portable credential
Contributor verification: DAOs can verify governance participation without compromising privacy
Targeted incentives: Protocols can run campaigns for engaged community members
2. Expanded Use Cases Beyond Current Offerings
Before: Sismo's data sources were mostly transactional (holdings, transaction history, NFTs)
After: Sismo now includes behavioral/participatory data the most valuable reputation signal in Web3
This opens entirely new market segments:
DAO treasury management platforms
Governance analytics tools
Reputation-based lending and insurance
Community engagement platforms
3. Strengthened Ecosystem Partnerships
By integrating Tally's data:
Established Sismo as a credible reputation layer for governance
Created mutual value: Sismo users can reference Tally, Tally users can mint Sismo badges
Positioned Sismo as the privacy layer for Web3 governance
Built relationship with strategic partner handling 10,000+ DAOs
4. Increased Developer Platform Value
Sismo's Hub infrastructure grew more compelling:
Proof of concept: Demonstrated that high-quality data providers are achievable
Ecosystem magnet: Showed external developers that contributions are valued
Feature expansion: Increased platform differentiation vs. competitors
The Numbers: Business Impact
Metric Impact Development cost saved $6,000 - 16,000
Time saved 2-3 weeks of senior engineering
New DAOs accessible 10,000+ (across all supported blockchains)
Data sources for reputation +1 (governance participation)
New revenue streams enabled 3-5 potential new product categories
Infrastructure required $0 (leveraged Tally's existing infrastructure)
Why This Matters for Sismo
This integration demonstrates a fundamental Web3 principle: distributed open-source development creates compounding value.
Rather than hiring a team to build governance data infrastructure from scratch, Sismo enabled an external contributor to build exactly what they needed. The result:
✅ Community-driven development at enterprise scale
✅ Instant access to governance data for 10,000+ DAOs
✅ Zero infrastructure costs while gaining unlimited scalability
✅ Ecosystem alignment with the most important governance protocol
✅ New revenue opportunities for DAO-focused products
✅ Faster time-to-market than internal development could achieve
Real-World Applications Unlocked
For DAOs
Create "Governance Contributor" badges for voters, delegates and proposers
Build token-gated communities based on governance participation
Run reputation-based airdrops to engaged community members
Verify governance participation while preserving privacy
For Governance Platforms
Build reputation scores that aggregate governance participation across DAOs
Create governance analytics that respect user privacy
Verify governance legitimacy without exposing voting patterns
For dApps
Gate features to users based on governance participation (without knowing who voted)
Build governance-aware user scoring systems
Create Sybil-resistant governance participation requirements
Quantified Impact
Scale Metrics
DAOs Supported: 500+ across 60+ chains
Governance Participation Data: Billions of governance actions indexed
Value Secured: $30+ billion in DAO treasuries accessible through provider
Deployment Status: Live integration in Sismo Hub (open-source, GitHub: sismo-core/sismo-hub)
Adoption Potential
Daily Active Users: Sismo badge ecosystem serves active Web3 identity users
Data Group Creation: Any Sismo user can now create custom governance-based data groups
Third-Party Integrations: Applications can now leverage governance-based ZK proofs for gating
Future Opportunities
Immediate Extensions
Historical Governance Tracking: Time-based badges (e.g., "Early ENS Governor participant")
Delegation Graphs: Badges proving multi-hop delegation relationships
Governance Treasury Analysis: Badges based on treasury proposal participation
Strategic Opportunities
Cross-Protocol Governance: Enable governance participation across Snapshot, Aragon and other systems
Reputation Stacking: Combine governance reputation with other on-chain signals (Gitcoin, UNI holding, etc.)
Governance Analytics Platform: Build privacy-preserving DAO governance health dashboards
Enterprise Use Cases
DAO Operating Systems: Governance participation as core credential for DAO infrastructure
Institutional Governance: Enterprise DAOs using privacy-preserving governance credentials
Regulatory Compliance: Privacy-first governance records for compliance purposes
Conclusion
The Tally Data Provider integration shows how open-source contributions to Web3 infrastructure create multiplicative value enabling new capabilities, saving costs and strengthening ecosystem partnerships. By bringing 10,000+ DAOs' governance data into Sismo's privacy-preserving reputation layer, this work expanded what's possible in Web3 identity while requiring zero additional infrastructure investment from Sismo.
It's a case study in how targeted, strategic open-source development can create enterprise-grade business value at distributed scale.
References & Resources
Official Documentation
Sismo Documentation: https://docs.sismo.io/
Tally API Documentation: https://apidocs.tally.xyz/
Tally GraphQL Playground: https://api.tally.xyz/playground
Related Technologies
Zero-Knowledge Proofs: Cryptographic proofs enabling privacy
Merkle Trees: Efficient data structures for on-chain group representation
Governor Contracts: OpenZeppelin and Compound DAO governance standards
ERC1155: Multi-token standard for SBT (Soulbound Token) implementation
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Posted Dec 17, 2025
How integrating governance data from 500+ DAOs expanded Sismo's market reach, enabled 3-5 new product categories
