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Fiverr Pro
English
$
USD
I will build a stellar usdc x402 or soroban payment integration for your app
TypeScript and Python CI Test Engineer
I fix broken CI pipelines and write the tests that catch regressions before your users do. What I take on: TypeScript and Node.js build and test failures (GitHub Actions, Jest, Vitest, tsc); a new tes...
About this Gig
One vertical slice, working end to end on Stellar testnet.
Pick one:
- USDC transfer tool with balance pre-flight and error mapping
- x402 paywall middleware (402 challenge, payment, proof header)
- WebAuthn passkey account flow on Soroban (secp256r1) with a 2-of-3 recovery path
- Soroban contract call wrapped in a typed SDK function
- Soroban contract test suite against a local sandbox
Proof you can check before ordering: the open-source passkey SDK (liutingqiu/stellar-soroban-passkey-kit, MIT, live browser simulator) and 70+ merged pull requests across Stellar projects, including four SDK PRs in drydocs/meridian (keepers, risk math) and three in Delego (Redis, BullMQ, storefront UI).
What you get: the slice wired into your service, integration notes, and a runnable example with the commands and output.
What I need from you: target network (testnet or pubnet), asset issuer, and where the slice plugs in.
Not included: audits, mainnet deployment credentials, custody of keys.
Purpose:
DeFi
•
Donation/Remittances
•
Smart Contracts
Programming language:
JavaScript
•
Python
•
Rust
•
TypeScript
Keep your assets and information safe
Cryptocurrency services focus solely on developing and programming. Never share sensitive information or private keys with others.
FAQ
Do you deploy to mainnet?
Not as part of this Gig. I deliver and verify the slice on testnet, and you keep the deployment keys. Mainnet deployment is your call, and I can walk your team through it.
