---
title: "Write to process stdin"
method: POST
path: "/browsers/{id}/process/{process_id}/stdin"
tags: ["Browser Processes"]
---

# Write to process stdin

`POST /browsers/{id}/process/{process_id}/stdin`

## Path parameters

- `id` string, required
- `process_id` string, uuid, required

## Request body

- ProcessStdinRequest — Data to write to the process standard input.
  - `data_b64` string, required — Base64-encoded data to write.

## Response `200`

Bytes written

- ProcessStdinResult — Result of writing to stdin.
  - `written_bytes` integer — Number of bytes written.

## Other responses

- `400` — Bad Request – invalid input
- `404` — Resource not found
- `500` — Internal Server Error

---

[API](https://skmtc.net/kernel/apis/kernel-api.md) · [All operations](https://skmtc.net/kernel/apis/kernel-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/kernel/kernel-api/versions/9e8ce9fcf5e1/schema)