Open Source

OCPI 2.2.1
EMSP Simulator

A lightweight, internal OCPI 2.2.1 EMSP Simulator designed to validate the correctness of Savekar's CPO implementation. It allows you to simulate a roaming partner that adheres strictly to the OCPI standard.

View on GitHub Quick Start

Standardized Roaming

Full OCPI 2.2.1 support for seamless connection between CPOs and EMSPs.

Zero-Risk Testing

Isolated environment validation without real payments or commercial logic.

Developer Friendly

Includes a CPO Client to actively test your endpoints and implementation.

Project Overview

The Savekar OCPI 2.2.1 EMSP Simulator is a specialized internal testing tool designed to validate the correctness of Charging Point Operator (CPO) implementations against the Open Charge Point Interface (OCPI) 2.2.1 standard. It acts as a strict e-Mobility Service Provider (EMSP) roaming partner.

What it Validates

• OCPI endpoint direction and usage
• Credentials handshake & token exchange
• Schema correctness (Locations, Sessions, CDRs)
• Response envelope & status semantics

What it DOES NOT Validate

• Commercial settlement or billing rules
• Partner-specific extensions
• Certification-level compliance
• Real-world EMSP operational behavior

How It Works

Phase 1: Credentials Handshake

The foundational step where two parties exchange tokens (Token A, B, C) to establish trust.

HTTP

POST /ocpi/emsp/2.2.1/credentials
Authorization: Token <Token A>

Phase 2: Data Push (CPO to EMSP)

Once connected, the CPO actively pushes real-time data to the Simulator.

Location Updates

PUT/PATCH updates for EVSE status

CDRs

Validates charge detail records for billing

Phase 3: Verification (EMSP to CPO)

The simulator acts as an active client to verify your CPO's server behavior.

Tariff Discovery: Fetches and validates tariff structures via GET /tariffs.
Start Charging: Initiates remote start via POST /sessions.
Stop Charging: Terminates sessions and validates the flow.

Quick Start

BASH

git clone https://github.com/savekar-ev/Savekar-OCPI-2.2.1-EMSP-Simulator-Project
cd Savekar-OCPI-2.2.1-EMSP-Simulator-Project
pip install -r requirements.txt
# Configure config.yaml first!
python run.py

Note: You must have Python 3.8+ installed. See the GitHub README for detailed configuration instructions.

Get Started

Ready to validate your CPO implementation? Download the simulator today.

Download Source

Technical Specs

VersionOCPI 2.2.1
LanguagePython 3.8+
LicenseMIT
TypeInternal Tool

Need Help?

Found a bug or need help with integration? Open an issue on GitHub or contact our dev team.

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