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Ethan Oroshiba

PROFILE

Ethan Oroshiba

Over a three-month period, contributed to the coinbase/x402 repository by delivering new blockchain integrations, optimizing backend performance, and improving developer tooling. Implemented Algorand AVM and Polygon mainnet support, expanding network compatibility and enabling broader asset interactions. Enhanced payment schemes and metadata handling, while refining documentation to streamline onboarding and integration. Addressed critical bugs by enforcing schema requirements and automating HTTP method population across TypeScript, Go, and Python SDKs, reducing manual errors and improving reliability. Refactored repository references for maintainability and introduced MCP tool-discovery extensions, strengthening cross-language parity. Focused on API development, CI/CD, and performance optimization throughout the engagement.

Overall Statistics

Feature vs Bugs

67%Features

Repository Contributions

6Total
Bugs
2
Commits
6
Features
4
Lines of code
100,599
Activity Months3

Work History

April 2026

1 Commits • 1 Features

Apr 1, 2026

April 2026 monthly summary for coinbase/x402: Delivered Algorand AVM blockchain support with enhanced payment schemes and improved asset-transfer documentation, enabling new network integrations and faster onboarding. Refactored repository references to align with x402-foundation/x402 across the codebase and docs to improve maintainability and cross-repo consistency. Initiated MCP tool-discovery extensions across TypeScript, Go, and Python SDKs to enable richer payment flows and tooling visibility. Added memo support for the SVM exact scheme, enhancing correctness and user experience across all SDKs. Executed targeted bug fixes and stability improvements (notably in TypeScript settlement overrides for upto, 402 response wiring for extensions, and validation of toolName/transport) and refreshed dependencies with package version bumps and lockfile updates. Overall, these efforts expand business reach, improve onboarding and integration reliability, and strengthen cross-language parity and developer productivity.

March 2026

3 Commits • 2 Features

Mar 1, 2026

March 2026 monthly summary for coinbase/x402: Delivered key features expanding network compatibility and improved data quality, plus a critical bug fix that enforces schema requirements and auto-populates HTTP methods across SDKs.

February 2026

2 Commits • 1 Features

Feb 1, 2026

February 2026 monthly summary for coinbase/x402 highlighting business value, key features delivered, major bug fixes, and technical achievements.

Activity

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Quality Metrics

Correctness96.6%
Maintainability90.0%
Architecture93.4%
Performance93.4%
AI Usage30.0%

Skills & Technologies

Programming Languages

GoJSONPythonTypeScript

Technical Skills

API developmentAPI integrationCI/CDGoPythonTypeScriptbackend developmentblockchain developmentdata managementdocumentationmetadata handlingperformance optimizationtesting

Repositories Contributed To

1 repo

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

coinbase/x402

Feb 2026 Apr 2026
3 Months active

Languages Used

GoJSONPythonTypeScript

Technical Skills

API developmentGobackend developmentperformance optimizationAPI integrationblockchain development