Donny Nguyen LLC · Plano, Texas

Developer and agent infrastructure for on-chain market data.

A one-person, self-funded software company. It builds tools that read live on-chain and public data and hand it to AI agents and developers — as MCP servers, as pay-per-call HTTP endpoints, and as hosted data actors.

What it builds

MCP servers for AI agents

Model Context Protocol servers that give an AI assistant live decentralised-exchange market data — token prices, pool liquidity, reserves, best execution venue and pre-trade slippage — read directly from on-chain pool state across BNB Chain, Polygon, Arbitrum, Base, Avalanche and Optimism. Published on npm under the MIT licence and listed on the official Model Context Protocol Registry. The free tiers need no API key.

A pay-per-call API gatewaylive

An HTTP-402 gateway on the x402 protocol: a request arrives, the endpoint answers 402 Payment Required with the terms, the caller settles USDC on Base, and the response is served. It is built so that an autonomous agent can pay for data without a subscription, an account or a human in the loop. The caller pays from their own wallet; no keys are bundled with any client.

Public data actors on Apify

Four hosted actors on the Apify Store that turn public sources into clean, structured, schedulable records: DEX token price and liquidity, Apple's podcast directory with new-episode detection, book and ISBN lookup over Open Library and Gutendex, and iOS App Store ratings and price-change monitoring. Each one runs against a keyless upstream, and the source of each is published under the MIT licence.

Open source

The libraries, scanners and reference implementations behind the products are public on GitHub — including a Stripe secret-surface scanner that reports fingerprints and never a value, an approval queue for human-gated AI work, and the MIT sources of every Apify actor above.

The company

Legal name
DONNY NGUYEN LLC
Structure
Single-member limited liability company, State of Texas
Formed
January 2021
Headquarters
Plano, Texas, United States
People
1
Funding
Bootstrapped and self-funded. No outside investment.

Contact

The fastest route is GitHub — issues on the relevant repository, or the profile at github.com/donnywin85.