---
title: "Discovery Cancel"
method: POST
path: "/v3/discovery/cancel"
tags: ["discovery"]
---

# Discovery Cancel

`POST /v3/discovery/cancel`

## Request

- Base URL: `https://api.evidenso.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.evidenso.com/v3/discovery/cancel`
- Auth: HTTP bearer

Cancel a paused execution: null pending_action, mark cancelled.

Used by the UI when the user deletes the source node, closes the tool
setup modal, or the board hydrates with an orphaned execution (source
node missing from the graph). No-op on non-paused rows — cancelling a
live graph.astream(...) is out of scope for this endpoint.

## Request body

- CancelRequest
  - `executionId` string, required

## Response `204`

Successful Response

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/evidenso/apis/persona-rag-api.md) - [All operations](https://skmtc.dev/evidenso/apis/persona-rag-api/llms.txt) - [OpenAPI document](https://skmtc.dev/evidenso/apis/persona-rag-api/revisions/86408c178d4f?raw)