ERC-8004 × x402 AI Agent
An autonomous agent on Ethereum built against the ERC-8004 and x402 standards, so an agent can be identified, trusted and paid on-chain without a human in the loop.
Solidity
Source · ERC8004x402§ 00—Index
Open to new workShashank Pandey
Senior Engineer · AI Agents·Mohali, India
FIG. 0164×64 · 16 col.
Scroll
§ 01
§ 01Working principles
I
II
III
§ 02
§ 02Plates 02 – 05
FIG. 02E-commerce platform
Jewellery App
FIG. 03Prediction market
Betrick
FIG. 04Security platform
ClawGuard
FIG. 05Finance app
SplitEase
§ 03
§ 03Public work
Everything below is public. Not as a portfolio piece — as the part of the work that should belong to whoever needs it next. Agent infrastructure especially: nobody benefits from ten private versions of the same protocol.
Repositories
01 in the open
What this means in practice
The README goes in before the last commit. If I cannot explain the thing on one page, it is not finished, whatever the tests say.
An issue gets a real answer, even when the answer is that I do not know yet. Silence is the worst thing a public repository can do to a stranger.
Anything I would otherwise rebuild from scratch on the next project goes on the shelf instead of into a private folder.
§ 04
§ 04Specimen cabinet
A
Models & agents
Where most of the work is now
- Claude
- GPT
- LangGraph
- MCP
- Knowledge graphs
- Retrieval
- Evals & tracing
B
Languages
What the thinking is written in
TypeScript
Rust
Solidity
Go
Python
F
Chains
Where the assets actually live
Solana
Ethereum
Polygon
Arbitrum
Bitcoin
D
Interfaces
The surface a person touches
React
Next.js
Redux
Tailwind
React Spring
Three.js
Figma
C
Services
What holds the weight
NestJS.ad338028.svg)
GraphQL
Socket.IO
WebRTC
Mediasoup
Kafka
E
Stores & tooling
Where state settles
PostgreSQL
MongoDB
Redis
Prisma
Docker
35 specimensGroups A – E
§ 05
§ 05Entries 01 – 05
| Year | Position | Company | Term |
|---|---|---|---|
| 2024 | Full Stack Blockchain Developer | Jewelnme | March 2024 to October 2025 |
| 2023 | Tech Lead | Vtopia | May 2023 to January 2024 |
| 2022 | Software Developer | Chaincode Consulting | July 2022 to May 2023 |
| 2021 | Software Engineer | Rapid Innovation | April 2021 to April 2022 |
| 2020 | Freelance Developer | Upwork | July 2020 to February 2021 |
Most recent entry
§ 06
§ 06Mail and calendar
The address
Mohali, India
Most messages get an answer within a day or two.