---
title: "Post Biochar Application"
method: POST
path: "/biochar_applications"
---

# Post Biochar Application

`POST /biochar_applications`

Creates a biochar application in the Isometric system

## Headers

- `x-client-secret` string, required — A secret token identifying the client connecting to the API

## Request body

- CreateBiocharApplicationRequest
  - `project_id` string, required
  - `storage_site_id` string, required
  - `production_batch_id` string, required
  - `average_application_rate` ScalarQuantity, required
    - `magnitude` number, required
    - `unit` string, required
    - `standard_deviation` number, nullable
  - `application_date` string, date, required — Date in ISO format (YYYY-MM-DD)
  - `truck_mass_on_arrival` ScalarQuantity, required
    - `magnitude` number, required
    - `unit` string, required
    - `standard_deviation` number, nullable
  - `truck_mass_on_departure` ScalarQuantity, required
    - `magnitude` number, required
    - `unit` string, required
    - `standard_deviation` number, nullable
  - `supplier_reference_id` string, required — A string that must be unique for all resources created by a specific supplier. It can be used by a client to identify the correct objects in their system.
  - `source_ids` string[]

## Response `200`

Successful Response

- BiocharApplication
  - `id` string, required
  - `storage_location_id` string, required
  - `production_batch_id` string, required
  - `removal_id` string, nullable, required
  - `ghg_entry_id` string, nullable, required
  - `supplier_reference_id` string, nullable, required — A string that must be unique for all resources created by a specific supplier. It can be used by a client to identify the correct objects in their system.
  - `application_date` string, date, required
  - `uploaded_at` string, date-time, required
  - `truck_mass_on_arrival` ScalarQuantity, required
    - `magnitude` number, required
    - `unit` string, required
    - `standard_deviation` number, nullable
  - `truck_mass_on_departure` ScalarQuantity, required
    - `magnitude` number, required
    - `unit` string, required
    - `standard_deviation` number, nullable
  - `average_application_rate` ScalarQuantity, required
    - `magnitude` number, required
    - `unit` string, required
    - `standard_deviation` number, nullable

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.net/isometric/apis/isometric-certify-data-ingestion-api.md) · [All operations](https://skmtc.net/isometric/apis/isometric-certify-data-ingestion-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/isometric/isometric-certify-data-ingestion-api/versions/9819e9c8ccf0/schema)