CDP API Integration Specification — Data Exchange Protocol

Overview

This document outlines the technical specifications for API-based data exchange between DaedArch Corporation and the CDP (Carbon Disclosure Project). The integration aims to facilitate the seamless transfer of environmental reporting data, ensuring compliance with CDP's global disclosure system. The integration shall support data submissions from DaedArch's sensor-based Monitoring, Reporting, and Verification (MRV) platform, which captures ground-truth environmental data through IoT sensors and processes it through certified algorithms.

Objectives

1. Enable the submission of verified environmental data to CDP.
2. Ensure compliance with CDP's standards for data accuracy, completeness, and timeliness.
3. Align with TCFD (Task Force on Climate-related Financial Disclosures) and ISSB (International Sustainability Standards Board) frameworks.
4. Provide a robust error handling mechanism and rate limiting to maintain system integrity.

Authentication

Authentication Method

DaedArch shall utilize OAuth 2.0 for API authentication. All requests to the CDP API must include an access token obtained via the OAuth 2.0 authorization flow.

Token Acquisition

1. Client Credentials Grant Type: DaedArch Corporation shall register as a client with CDP to obtain a `client_id` and `client_secret`.
2. Token Request: The access token may be obtained by making a POST request to the token endpoint:

` POST https://api.cdp.net/oauth/token `

#### Request Body `json { "grant_type": "client_credentials", "client_id": "YOUR_CLIENT_ID", "client_secret": "YOUR_CLIENT_SECRET" } `

#### Response `json { "access_token": "YOUR_ACCESS_TOKEN", "token_type": "Bearer", "expires_in": 3600 } `

Token Usage

All subsequent API requests shall include the access token in the Authorization header:

` Authorization: Bearer YOUR_ACCESS_TOKEN `

Endpoints

Base URL

The base URL for CDP API endpoints is:

` https://api.cdp.net/v1 `

Data Submission Endpoint

Endpoint

` POST /data/submit `

Purpose

This endpoint shall be used to submit verified environmental data from DaedArch's MRV platform.

Request Headers

• Content-Type: application/json
• Authorization: Bearer YOUR_ACCESS_TOKEN

Request Body

The request body must conform to the following JSON schema:

`json { "company_id": "string", "report_year": "integer", "data": { "emissions": { "scope_1": "number", "scope_2": "number", "scope_3": { "category_1": "number", "category_2": "number" } }, "energy_consumption": { "total": "number", "renewable": "number" }, "water_usage": { "total": "number", "recycled": "number" } }, "metadata": { "submission_date": "string", "submitted_by": "string" } } `

Response

Upon successful submission, the API shall return a 201 Created status with the following response body:

`json { "status": "success", "message": "Data submitted successfully", "submission_id": "string" } `

Data Retrieval Endpoint

Endpoint

` GET /data/retrieve/{submission_id} `

Purpose

This endpoint shall be used to retrieve the status of a previously submitted data report.

Request Headers

• Authorization: Bearer YOUR_ACCESS_TOKEN

Response

The response shall return the submission status and data if available:

`json { "submission_id": "string", "status": "string", "data": { "company_id": "string", "report_year": "integer", "data": { "emissions": { "scope_1": "number", "scope_2": "number", "scope_3": { "category_1": "number", "category_2": "number" } }, "energy_consumption": { "total": "number", "renewable": "number" }, "water_usage": { "total": "number", "recycled": "number" } }, "metadata": { "submission_date": "string", "submitted_by": "string" } } } `

Data Models

Company Data Model

The company_id field shall reference a unique identifier assigned to each company by CDP. This identifier must be validated against CDP's company registry to ensure accuracy.

Emissions Data Model

The emissions data model shall include:

• scope_1: Direct emissions from owned or controlled sources.
• scope_2: Indirect emissions from the generation of purchased electricity, steam, heating, and cooling.
• scope_3: Other indirect emissions, categorized into specific categories (e.g., business travel, waste disposal).

Energy Consumption Data Model

The energy consumption model shall include:

• total: Total energy consumed (in MWh).
• renewable: Total renewable energy consumed (in MWh).

Water Usage Data Model

The water usage model shall include:

• total: Total water usage (in cubic meters).
• recycled: Total recycled water usage (in cubic meters).

Metadata

The metadata section shall include:

• submission_date: ISO 8601 formatted date string (e.g., "2023-10-01").
• submitted_by: Name or identifier of the user submitting the data.

Error Handling

Common Error Responses

The API shall return appropriate HTTP status codes and error messages for various scenarios. Below are the common error responses:

• 400 Bad Request: The request was malformed or contained invalid data.

`json { "status": "error", "message": "Invalid data format" } `

• 401 Unauthorized: Authentication credentials were missing or invalid.

`json { "status": "error", "message": "Unauthorized access" } `

• 404 Not Found: The requested resource could not be found.

`json { "status": "error", "message": "Submission not found" } `

• 500 Internal Server Error: An unexpected error occurred on the server.

`json { "status": "error", "message": "Internal server error" } `

Rate Limits

Rate Limiting Policy

To ensure fair usage of the API and maintain system performance, DaedArch Corporation shall adhere to the following rate limits:

• Requests per minute: 60 requests
• Requests per hour: 1,200 requests

Exceeding Rate Limits

If the rate limit is exceeded, the API shall return a 429 Too Many Requests status code:

`json { "status": "error", "message": "Rate limit exceeded. Please try again later." } `

Conformity Assessment Procedures

1. Data Validation: All data submitted to the CDP API shall be validated against the established data models. Any discrepancies must be resolved prior to submission.

1. Audit Trails: DaedArch Corporation shall maintain detailed logs of all API interactions, including timestamps, request and response bodies, and error messages.

1. Periodic Reviews: CDP may conduct periodic reviews of DaedArch's data submissions to ensure compliance with disclosure requirements. DaedArch shall provide access to its logs and audit trails upon request.

1. Feedback Mechanism: A feedback mechanism shall be established to address any discrepancies or issues identified during the review process. DaedArch shall respond to feedback within a specified timeframe (e.g., 14 days).

1. Training and Awareness: DaedArch staff involved in data submission shall receive training on CDP’s requirements and the API integration process to ensure compliance.

Conclusion

This API Integration Specification serves as the formal guideline for the data exchange between DaedArch Corporation and CDP. Compliance with this specification is mandatory for ensuring accurate and timely environmental reporting. DaedArch Corporation shall implement all necessary measures to adhere to the outlined requirements and facilitate a successful integration with CDP’s systems.