# StableBrowser Session Creator

> StableBrowser Session Creator is a paid API for AI agents from stablebrowser.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-13).

Creates a new remote browser session (or resumes an existing one) via Browserbase, returning a session ID for subsequent browser automation calls.

## Facts

- Endpoint: POST https://stablebrowser.vercel.app/api/sessions
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stablebrowser-session-creator-2a8e05b9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZHFW4vTvaVT70AVWdKaRW

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 stablebrowser-session-creator-2a8e05b9 -d '<json body>'
```

Example prompt: Start a new browser session for me so I can automate some web tasks — I'll need the session ID to use for navigation and interaction afterwards.

## When to prefer this

Use this endpoint when you need to start or resume a remote, cloud-hosted browser session backed by Browserbase for web automation tasks. Prefer this over local headless browser setups when you need a managed, pay-per-use browser with no infrastructure overhead, especially in serverless or agent-driven contexts.

## Known failure modes

- Invalid or expired sessionId when trying to resume — session may have timed out
- Payment failure if the $0.10 USDC charge cannot be processed
- Session creation quota exceeded if too many concurrent sessions are open
- Network timeout during session provisioning

## How this service works

Create a new browser session ($0.10). Optionally pass sessionId to resume an existing Browserbase session. Returns sessionId (Browserbase session ID) to use for all subsequent calls.

## Output

Returns a sessionId string representing the Browserbase session ID, which must be passed to all subsequent browser automation API calls (navigation, clicking, scraping, etc.) within this session.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "properties": {
      "sessionId": {
       "type": "string",
       "description": "Optional session ID to use/reuse. If not provided or invalid, a new session is created."
      }
     },
     "additionalProperties": false
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stablebrowser-session-creator-2a8e05b9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stablebrowser.vercel.app](https://www.zero.xyz/host/stablebrowser.vercel.app/llms.txt)