# Browserbase Session Extend

> Browserbase Session Extend is a free API for AI agents from Browserbase at mpp.browserbase.com, Free, status unknown (last checked 2026-10-12).

Extends the time limit of an active Browserbase headless browser session by a specified duration

## Facts

- Endpoint: POST https://mpp.browserbase.com/browser/session/:id/extend?utm_source=zero.xyz
- Price: Free
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Provider: Browserbase
- Docs: https://docs.browserbase.com
- Website: https://browserbase.com
- Tags: browser, scraping, automation, headless, search, fetch, web, compute
- Canonical page: https://www.zero.xyz/c/browserbase-extend-2d88f9a1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tgglH_xxMHdePatGwRyPu

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability browserbase-extend-2d88f9a1 -d '<json body>'
```

Example prompt: My Browserbase session with ID abc123 is about to expire — can you extend it by another 10 minutes so my scraping task has enough time to finish?

## When to prefer this

Use this endpoint when an active Browserbase headless browser session is running and needs more time to complete its task before the session timeout occurs. Prefer this over creating a new session when you want continuity of the current browser state, cookies, and loaded pages without interruption.

## Known failure modes

- Session ID not found — returns 404 if the session does not exist
- Session already terminated — cannot extend an expired or closed session
- Invalid extension duration — returns 400 if the time value is invalid or out of range
- Unauthorized — returns 401/403 if the API credentials are missing or invalid
- Maximum session duration reached — extension refused if the session has hit the provider's maximum allowed length

## How this service works

Add more time to session

## Output

Returns updated session details including the new expiration time and session status, confirming that the session has been successfully extended.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "query"
 ],
 "properties": {
  "query": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/browserbase-extend-2d88f9a1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mpp.browserbase.com](https://www.zero.xyz/host/mpp.browserbase.com/llms.txt)