---
title: "Add System Analysis Entry Subject"
method: POST
path: "/system_analysis_entries/{id}/subjects"
tags: ["System Analysis"]
---

# Add System Analysis Entry Subject

`POST /system_analysis_entries/{id}/subjects`

## Path parameters

- `id` string, required

## Request body

- AddSystemAnalysisEntrySubjectRequestBody
  - `$schema` string, uri — A URL to the JSON Schema for this object.
  - `attributes` AddSystemAnalysisEntrySubjectAttributes, required
    - `knowledgeEntityId` string
    - `knowledgeEvidenceId` string
    - `knowledgeRelationshipId` string
    - `role` string, required

## Response `200`

OK

- AddSystemAnalysisEntrySubjectResponseBody
  - `$schema` string, uri — A URL to the JSON Schema for this object.
  - `data` SystemAnalysisEntrySubject, required
    - `attributes` SystemAnalysisEntrySubjectAttributes, required
      - `knowledgeEntityId` string
      - `knowledgeEvidenceId` string
      - `knowledgeRelationshipId` string
      - `role` string, required
    - `id` string, required

## Other responses

- `400` — Bad Request
- `401` — Unauthorized
- `403` — Forbidden
- `404` — Not Found
- `422` — Unprocessable Entity
- `500` — Internal Server Error

## Changes

- **2026-08-25** (v1) `3fd856c3acc1` — 2 breaking, 3 warning, 3 info
  - removed the required property `data/attributes/subjectId` from the response with the `200` status
  - removed the required property `data/attributes/subjectKind` from the response with the `200` status
  - removed the optional property `data/attributes/knowledgeEntity` from the response with the `200` status
  - removed the optional property `data/attributes/knowledgeEvidence` from the response with the `200` status
  - …4 more
- **2026-08-18** (v1) `757c8394efdc` — 3 warning
  - removed the optional property `data/attributes/knowledgeEntityId` from the response with the `200` status
  - removed the optional property `data/attributes/knowledgeEvidenceId` from the response with the `200` status
  - removed the optional property `data/attributes/knowledgeRelationshipId` from the response with the `200` status
- **2026-08-17** (v1) `f01c56c8a294` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/rezible/apis/rezible-api/changes/system_analysis_entries/:id/subjects/post.md)

---

[API](https://skmtc.dev/rezible/apis/rezible-api.md) · [All operations](https://skmtc.dev/rezible/apis/rezible-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/rezible/rezible-api/revisions/eaee3040e50d/schema)