Practical overview
When it fits
Use the proxy instructions when setting up a local prototype connection from MetaMask to Neon EVM. Consider the separate gas-tank configuration when building transfer-triggered sponsorship around supported, allowlisted bridge tokens.
Who it is for
- Developers exploring MetaMask connectivity to Neon EVM through Solana.
- Teams working with Neon EVM transaction indexing or transfer-triggered gas sponsorship.
Documented uses
- Expose a local Solana endpoint for MetaMask.
- Index Neon EVM transaction and token-transfer activity.
- Analyze configured bridge transfers to trigger gas-less transaction handling.
Requirements & limits
- The documented proxy uses a local endpoint at http://localhost:9090/solana.
- Gas-tank analysis depends on configured contract addresses and token allowlists; both are required for each documented bridge type to be analyzed.
- The README identifies Ubuntu 18.04 prerequisites and Python-based setup.
Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.
Set up the local MetaMask proxy
Start the documented local proxy and add its endpoint as a MetaMask network.
Before you start
- Ubuntu 18.04
- Python 3, python3-venv, python3-dev and GCC
- The repository's requirements.txt
Steps
Create and activate a Python virtual environment with the documented commands.
Install dependencies with pip install -r requirements.txt.
Start the proxy on 127.0.0.1:9090 with the NeonRpcApiPlugin and web server enabled.
Add http://localhost:9090/solana as a network in MetaMask.
Expected outcome
MetaMask is configured to connect through the locally running proxy endpoint.
Guide limitations
- The instructions describe a local prototype setup, not a hosted or production deployment.
Sources & review
Source record details
- Source availability
- Active
- Sources checked
- 18 October 2026
- Original website title
- neonevm/proxy-model.py · Official homepage title · retained in its source language

