Hi, I'm Vedant 👋
I build payment infrastructure for AI agents - agentic commerce, x402 and stablecoin payments - backed by full-stack TypeScript and production Solidity.
VA

About Me - Agentic Payments & x402 Engineer

I build payment infrastructure for AI agents.

I co-founded Bags, an agentic commerce platform that let any API charge AI agents per request over the x402 protocol - pay-per-call links that quoted a price, verified a USDC payment across four chains, then returned the response. It reached 100,000+ cumulative visitors, was backed by Founders Inc. and Superteam, and was part of Canopy, the Founders Inc. builder cohort.

I also contribute to x402 itself, the HTTP-native standard for paying for API calls in stablecoins. Three of my pull requests are merged into the protocol repository - unit tests for EIP-2612 permit signing, named constants for ERC-20 approval gas defaults, and documentation for the extensions package. Before Bags I was founding engineer at Timelock Protocol, writing Solidity for a DeFi options protocol, and spent twelve months as a full-stack blockchain developer at Mavik Labs across Next.js, TypeScript, Docker and Go. I mentor for Google Summer of Code with OWASP BLT.

I am pursuing a degree in Electrical and Computer Engineering and graduate in 2027.

Professional Work Experience

Technical Skills & Technologies

x402
Agentic Payments
Stablecoin Payments (USDC)
Solidity
React
Next.js
Typescript
Node.js
Rust
Foundry
Docker
C++
C
Git & Github
Zero-Knowledge Proofs
Portfolio Projects

Agentic payments, x402 and DeFi work

Most of what I build is payment infrastructure: charging AI agents per API call over x402, settling in USDC across chains, and the Solidity underneath it. Here is the work worth reading about, including what I shipped into the protocol itself and what I shut down.

Bags - pay-per-call APIs for AI agents project screenshot showing the application interface and features

Bags - pay-per-call APIs for AI agents

An agentic commerce platform that let any API charge AI agents per request over x402. A pay-per-call link returned an HTTP 402 with a price quote, verified the agent's USDC payment across four chains, and only then released the response - with merchant-of-record compliance and tax invoicing underneath, so a founder without a US entity could still get paid. Reached 100,000+ cumulative visitors, backed by Founders Inc. and Superteam, part of the Canopy builder cohort. Wound down in 2026: the machinery worked, the demand was not there yet.

x402
Agentic Commerce
Stablecoin Payments
USDC
Next.js
TypeScript
Compliance
x402 protocol contributions project screenshot showing the application interface and features

x402 protocol contributions

Three merged pull requests to x402, the HTTP-native standard for paying for API calls in stablecoins. Unit tests for sign_eip2612_permit, which builds the EIP-712 payload facilitators verify on-chain - a regression in the domain or the Permit primary type would silently break Permit2 gas sponsoring on every chain that opts in. Named constants for the ERC-20 approval gas fee defaults, replacing hardcoded fallbacks and matching the TypeScript side. And a rewrite of the @x402/extensions documentation. All three reviewed and merged by the protocol's maintainers.

x402
Agentic Payments
EIP-2612
Permit2
Python
TypeScript
Open Source
AgentPay project screenshot showing the application interface and features

AgentPay

A payment agent that buys API calls on your behalf over x402 - sentiment analysis and in-house trading signals, each metered and settled per request in USDC rather than behind a subscription. The prototype that led to Bags.

x402
Agentic Payments
USDC
Next.js
TypeScript
TailwindCSS
AI
Shadcn UI
DeFi
Timelock Protocol project screenshot showing the application interface and features

Timelock Protocol

A modern landing page for Timelock Protocol showcasing advanced DeFi trading features with unlimited upside and zero liquidation risk. Features quantum-secured positions and temporal arbitrage across multiple DeFi protocols with enhanced yields.

Next.js
TypeScript
TailwindCSS
Framer Motion
DeFi
Blockchain
Shadcn UI
Veri Doc project screenshot showing the application interface and features

Veri Doc

A decentralized document verification system using zero-knowledge proofs to reduce maintenance costs and improve verification efficiency. The system significantly decreases verification time compared to standard methods while maintaining security and privacy through advanced cryptographic techniques.

Next.js
TypeScript
Zero-Knowledge Proofs
Blockchain
Solidity
TailwindCSS
Shadcn UI