---
title: "Create an explicit interface placeholder gap"
method: POST
path: "/api/interface-placeholder/mark-gap"
tags: ["Interface Placeholder"]
---

# Create an explicit interface placeholder gap

`POST /api/interface-placeholder/mark-gap`

## Request

- Base URL: `https://api.cernion.de`
- URL: `https://api.cernion.de/api/interface-placeholder/mark-gap`
- Auth: none declared

## Query parameters

- `token` string

## Request body

- object
  - `role` string, required
  - `reason` string, required
  - `blockingLevel` string
  - `replacementCriteria` object
    - `kind` string
    - `capabilityHint` string
    - `deadline` string, date-time
  - `signalCodes` string[]
  - `placeholderGapKey` string
  - `requiredResolverRoles` string[]
  - `token` string: Optional Cernion MCP token for this request. Overrides CERNION_TOKEN when provided.

## Response `200`

Successful response

- object

---

[API](https://skmtc.dev/cernion/apis/cernion-energy-tools-api.md) · [All operations](https://skmtc.dev/cernion/apis/cernion-energy-tools-api/llms.txt) · [OpenAPI document](https://skmtc.dev/cernion/apis/cernion-energy-tools-api/revisions/cdb94473b538?raw)