Build an Address Type Detection and Validation Endpoint

[codeZe-us]

Build the /api/validate endpoint that uses stellar-address-kit package to detect address type (G, M, C), validate the address, and return structured feedback including whether memo fields should be disabled.

Contribution Guide

• PRs go to the dev branch, not main
• Application must explain your specific approach to this task ; generic applications will not be assigned
• PR description must clearly describe what you built and changed
• Link your PR to the correct issue number (e.g. Closes #12)

Implementation Guidelines
Key files: examples/ts-backend/exchange-withdrawal-validator/src/server.ts

• POST /api/validate accepts { address: string, memoType?: string, memoValue?: string }.
• Use detect(), validate(), and parse() from stellar-address-kit.
• M-address: return { valid: true, addressKind: "muxed", muxedId: "...", memoDisabled: true, reason: "Muxed addresses carry their own routing ID" }.
• C-address: return { valid: false, addressKind: "contract", error: "Contract addresses cannot receive direct exchange withdrawals" }.
• G-address: return { valid: true, addressKind: "classic", memoDisabled: false }.
• Invalid address: return { valid: false, error: "Invalid Stellar address" }.

Expectations
What done looks like: Each address type returns the correct structured response. Invalid addresses are rejected cleanly.

Discord for questions: codeze_us

[playmaker410]

@playmaker410 has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

Hi Maintainer,

I’d love to take this on. I have hands-on experience with Rust, Soroban, Cairo, and TypeScript, and I’m confident I can deliver a solid solution within 24 hours.

Happy to contribute.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @playmaker410 to this issue.

[drips-wave]

Congratulations, @playmaker410! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on April 29, 2026.

🧑‍💻 @playmaker410: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

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