Libraries

Open source libraries for European energy trading infrastructure.

Phase Nexa is a collection of focused, composable libraries. Each one solves a specific problem. Use them together or independently.

All libraries are MIT-licensed.

Library	Language	What it does	Install
nexa-marketdata	Python	Unified market data client for Nord Pool, EPEX SPOT, ENTSO-E, EEX	`pip install nexa-marketdata`
nexa-bidkit	Python	Day-ahead and intraday auction bid generation	`pip install nexa-bidkit`
nexa-mfrr-nordic-eam	Python	mFRR energy activation market bids for Nordic TSOs	`pip install nexa-mfrr-nordic-eam`

How they fit together

                     Your Trading System
                            |
         +------------------+------------------+
         |                  |                  |
   nexa-marketdata     nexa-bidkit    nexa-mfrr-nordic-eam
         |                  |                  |
         +--------+---------+          +-------+
                  |                    |
         Nord Pool / EPEX SPOT / EEX   Nordic TSOs
              / ENTSO-E                (Statnett, SVK,
                                        Energinet, Fingrid)

nexa-marketdata fetches the data. nexa-bidkit builds day-ahead and intraday bids. nexa-mfrr-nordic-eam constructs and serialises mFRR balancing bids for Nordic TSOs. Each library works independently, but they are designed to compose naturally.

Planned libraries

These are on the roadmap. Development priority is driven by community demand.

Library	Language	What it will do	Status
nexa-connect	Go	Exchange connectivity SDK (FIX, REST, WebSocket)	Coming soon
nexa-mcp	Python	MCP server for LLM-powered trading workflows	Coming soon
nexa-forecast	Python	Short-term price and load forecasting	Planned
nexa-position	Go	Real-time position management	Planned
nexa-backtest	Python	Energy market backtesting framework	Planned
nexa-scheduler	Go	Nomination and scheduling engine	Planned
nexa-risk	Python	Lightweight risk analytics (VaR, CVaR)	Planned
nexa-signals	Go	Market signal detection and alerting	Planned
nexa-excel	TS/C#	Excel add-in for market data and bidding	Planned

info

Want to influence the roadmap? Open an issue or join the community.