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Emanuel Tesař

PROFILE

Emanuel Tesař

E. Tesarr developed and maintained the api3dao/contracts repository over a twelve-month period, delivering twenty features and resolving six bugs to expand cross-chain DeFi integrations and dApp catalog coverage. Tesarr’s work focused on backend and full stack development, leveraging TypeScript, Solidity, and Node.js to implement robust API design, data modeling, and smart contract enhancements. By refactoring data models, improving validation logic, and automating metadata generation, Tesarr enabled scalable onboarding of new dApps and improved data integrity across multiple blockchains. The technical approach emphasized maintainability, release hygiene, and user-facing discoverability, resulting in a more reliable and extensible DeFi infrastructure.

Overall Statistics

Feature vs Bugs

77%Features

Repository Contributions

74Total
Bugs
6
Commits
74
Features
20
Lines of code
1,956
Activity Months12

Work History

January 2026

3 Commits • 2 Features

Jan 1, 2026

January 2026 monthly summary focusing on delivered features and bug fixes across api3dao/contracts and DefiLlama-Adapters. Key outcomes include integration of Basedollar into dApp details, an accuracy-focused upgrade to API3 Treasury calculations, and a bug fix removing an invalid JSON filename-prefix constraint. These changes improve data reliability, customer-facing metadata, and business decision support.

December 2025

3 Commits • 2 Features

Dec 1, 2025

December 2025: Focused on standardizing dApp metadata and improving cross-chain recognition within the Somnia ecosystem and Ethereum. Delivered two key features in api3dao/contracts: (1) Tokos dApp branding and metadata updates including alias rename and homepage URL adjustments, and (2) Morpho dApp alias morpho-api3 with validation updates. A targeted bug fix to correct Tokos dApp details in Somnia metadata was also completed. These changes improve brand consistency, reduce misidentification, and enhance partner integrations.

November 2025

5 Commits • 3 Features

Nov 1, 2025

2025-11 monthly summary highlighting cross-network feature delivery and improved dApp accessibility within api3dao/contracts. Key actions focused on expanding multi-network support (Euler, Moonriver, Moonbeam) and improving catalog visibility for new dApps. These changes enhance ecosystem reach, onboarding, and user experience while maintaining code quality through explicit changesets.

October 2025

1 Commits • 1 Features

Oct 1, 2025

Monthly summary for 2025-10: Focused on expanding cross-chain capabilities for Yei Finance in the api3dao/contracts repo. Delivered Injective blockchain support by updating a generated TypeScript file; the change is committed. No major bugs reported related to this work. This set the stage for Injective deployment and broader ecosystem integration.

September 2025

4 Commits • 1 Features

Sep 1, 2025

September 2025 monthly summary for api3dao/contracts: Delivered a major DApp catalog expansion across multi-chain support and new dApp entries, with a focus on user-facing discoverability and interoperability. The update consolidates four commits into a cohesive catalog expansion and metadata enhancements, setting the foundation for broader ecosystem adoption.

August 2025

3 Commits • 1 Features

Aug 1, 2025

August 2025 monthly summary for api3dao/contracts. Delivered Morpho-based markets for rsETH/USDC and ezETH/USDC on Arbitrum, with vaulted configurations, updated market listings, DApps configuration, and contracts metadata. Prepared release readiness with automated generation and changeset steps. This work expands liquidity access, improves pricing and capital efficiency on Arbitrum, and positions the project for broader asset coverage.

July 2025

4 Commits • 1 Features

Jul 1, 2025

Summary for 2025-07: Delivered foundational DApp capabilities and expanded Morpho integration across multi-chain deployments. Implemented Morpho market configuration in api3dao/contracts to enable Morpho markets on Katana and Gnosis chains. Completed the first wave of Morpho markets in dApp details on the Gnosis chain, expanding market access for users. Resolved a data integrity issue for morpho-wsteth-usdc-860-lltv by removing a redundant Gnosis entry and listing both Ethereum and Gnosis as supported chains.

June 2025

9 Commits • 2 Features

Jun 1, 2025

June 2025 monthly summary for api3dao/contracts. Key outcomes include: (1) Segment Finance integration in Core with initial feature flag/config and cross-chain recognition across the chain graph; implemented via commits d93cdf242deb56c45b7289461032c0e9be05b30b and c94f62b56dd7545a0f98011a775f92b8a27fe918. (2) Morpho alias and WBTC market configuration: added Morpho aliases, configured WBTC/cbBTC markets in dApps mapping, and corrected asset naming (WTBC -> WBTC); commits 1b108d60ff4906917a0c03f5e447f2ea3fac4392, 7161784f6009758c154a4b0bd01f1746863a9365, 4fc44a12757cd7667967a8ffdbe71674d0a7d9e8, a4d6344d29e635d48bfbd9549cd9e3faf80d8808. (3) DApp registry and alias cleanup: prune outdated dApps, remove unused aliases, and document changes to align with current registry; commits d95a0c163cc95e37b6112985af41eb65da1cafd7, 12a66ae82df73acd48aa54fb823e9857164c5ab3, 1f3906a14349950086388d5d8b484f15a8b935f9.

May 2025

12 Commits • 3 Features

May 1, 2025

May 2025 performance for api3dao/contracts: Delivered three cross-platform DApp integrations (Sonic Stability, Morpho/tunnl, and TakoTako), expanded dApp registry, and released aligned changesets and generated artifacts to enable smooth deployments. Strengthened multi-DApp ecosystem and prepared groundwork for leveraged liquidity across platforms.

April 2025

3 Commits • 1 Features

Apr 1, 2025

April 2025: Focused delivery on Malda DApp Registry Enhancement for Linea and Sonic integration stability fix in api3dao/contracts. Delivered targeted features and reliability improvements that increase Linea ecosystem completeness, reduce runtime errors, and prepare for smoother release cycles. Technical work included metadata updates, a changeset entry, and defensive programming to guard undefined sonic objects.

March 2025

7 Commits • 2 Features

Mar 1, 2025

Concise monthly summary for 2025-03 focused on api3dao/contracts. Delivered key safety enhancements to Dapp ID computation and updated the DApp registry with new ApeBank support and broader Ionic Protocol compatibility. Implemented improvements with proper release tracking and test hygiene, enabling smoother onboarding of new dApps and stronger risk management for ID handling.

February 2025

20 Commits • 1 Features

Feb 1, 2025

February 2025 monthly summary for api3dao/contracts. Focus on delivering high-value features, stabilizing the codebase, and enabling scalable cross-chain data modeling. Key achievements include a Data Model overhaul with cross-chain aliases, per-chain tagging, and enhanced validation; catalog expansion (Aurum, Silo V1, Compound USDe on Mantle) with refined data and improved IDs/slug generation; CLI and metadata enhancements for better UX and data visibility. Significant refactors to improve build stability and maintainability by resolving circular dependencies in Proxy and simplifying computeDappId checks. Improvements contribute to data integrity, faster onboarding of new DApps, and reduced maintenance burden. Technologies demonstrated include TypeScript, TypeChain, schema migrations, CLI UX improvements, and metadata generation.

Activity

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Quality Metrics

Correctness94.0%
Maintainability94.0%
Architecture92.0%
Performance92.8%
AI Usage20.2%

Skills & Technologies

Programming Languages

JSONJavaScriptMarkdownSolidityTypeScriptYAML

Technical Skills

API DesignAPI DevelopmentAPI IntegrationAPI RefactoringAPI integrationBackend DevelopmentCLI DevelopmentChangelog ManagementCode CleanupCode RefactoringConfiguration ManagementData ModelingData StructuresData ValidationDeFi

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

api3dao/contracts

Feb 2025 Jan 2026
12 Months active

Languages Used

JavaScriptSolidityTypeScriptYAMLMarkdownJSON

Technical Skills

API DesignAPI IntegrationBackend DevelopmentCLI DevelopmentCode RefactoringConfiguration Management

DefiLlama/DefiLlama-Adapters

Jan 2026 Jan 2026
1 Month active

Languages Used

JavaScript

Technical Skills

API integrationDeFi protocolsbackend development

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