---
title: "Given A Data Element, Find Other Cdes That Have The Same Main Concept Object Class - Q18B"
method: GET
path: "/data_elements/main_concept_peers"
tags: ["Data Elements"]
---

# Given A Data Element, Find Other Cdes That Have The Same Main Concept Object Class - Q18B

`GET /data_elements/main_concept_peers`

## Request

- Base URL: `https://cadsrapi.cancer.gov/si-api/v1`
- URL: `https://cadsrapi.cancer.gov/si-api/v1/data_elements/main_concept_peers`
- Auth: none declared
- TypeScript: <https://skmtc.dev/cancer/apis/ssis-api/docs/data_elements/main_concept_peers/get.ts> (a function with typed inputs; its response is checked against the schema)

Given a data element, find other data elements that have the same Main Concept Object Class. Limited to 100.

## Query parameters

- `graph_name` string, required
- `given_id` string, required
- `resource_name` string, required

## Response `200`

OK

- DataElementsmainConceptPeersGETResponse
  - `results` MainConceptPeers[], required
    - `data_element` string, required
    - `public_id` string, required
    - `preferred_term` string, required
  - `apiResponse` ApiResponse, required
    - `type` string, required: S Success, E Error, W Warning, I Info, A Abort
    - `message` string: Message text
    - `service` string: service that errorred
    - `time` string: Date and time of error
    - `ssnid` string: session id
    - `callStack` CallstackItem[]
      - `service` string, required
      - `flowStep` string, required

## Other responses

- `401`: Access Denied

---

[API](https://skmtc.dev/cancer/apis/ssis-api.md) - [All operations](https://skmtc.dev/cancer/apis/ssis-api/llms.txt) - [OpenAPI document](https://skmtc.dev/cancer/apis/ssis-api/revisions/1e6df122366f?raw)