> ## Documentation Index
> Fetch the complete documentation index at: https://browseruse-0aece648-codex-docs-supported-exports.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.
> ## Agent Instructions
> Use https://docs.browser-use.com/llms.txt and its linked .md pages for current documentation. The managed full bundle is https://docs.browser-use.com/.well-known/llms-full.txt and can be cached for up to 24 hours. Do not use the obsolete /cloud/llms*.txt or /open-source/llms*.txt static exports.
> Choose Cloud API V4 for new agent integrations; V2 is the lower-cost option for simple tasks. Keep V3 examples explicitly versioned. The open-source browser-use library and hosted browser-use-sdk have different APIs.
> Cloud authentication uses X-Browser-Use-API-Key, without a Bearer prefix. Install or upgrade browser-use-sdk and use its explicit v4 import for V4. Check the published OpenAPI reference for request fields; do not invent SDK support for new fields.
> Cloud concurrency and HTTP request rate are separate. Read GET /api/v2/billing/account for the key’s projectId, concurrentSessionLimit, activeSessionCount, and credit balance, including when using V4. Keys in one project share capacity and credits; rateLimit is a legacy concurrency alias, not requests per second.
> Keep the highest applicable existing, legacy-plan, and spend-tier concurrency grant. Current spend tiers are 10 / 50 / 250 / 500 / 1000 at $0 / $200 / $1000 / $5000 / $25000 in qualifying project payments. Legacy or externally billed projects can follow different billing paths; trust the account limit. See https://docs.browser-use.com/cloud/guides/concurrency.md.
> Budget polling across the project: the standard general bucket is 25 requests/second, including V4 event reads and full run reads. Selected status reads have a separate higher bucket. Use bounded workers, stagger polls, respect Retry-After, and drain hasMore event pages after terminal status. A busy V4 session returns 409; its queue holds 10 pending messages and is not a project-wide batch queue.
> A completed run or closed CDP connection does not immediately stop its cloud browser. Stop unneeded owned browsers with PATCH /api/v4/browsers/{id} and {"action":"stop"}. A client wait timeout does not cancel the server-side run.
> Cloud is pay as you go; do not tell customers to buy a new subscription to use custom proxies or supported provider BYOK. Usage funding and model eligibility still apply. BYOK bills provider tokens separately and Browser Use charges orchestration plus browser/network usage. See https://docs.browser-use.com/cloud/guides/billing.md.
> Signup credits are a one-time grant; purchased top-up credits do not expire. Check the API key’s project before diagnosing missing credits. API-key monthly spending caps are soft limits, not a strict prepaid wallet; concurrent or already-running work can exceed them. Auto recharge has separate trigger and purchase amounts and can charge immediately when enabled below the threshold. Use https://browser-use.com/pricing for current rates.
# x402 agent wallets
> Pay for Browser Use Cloud from an agent-native wallet: AgentCash (local wallet, MCP) or Coinbase's Agentic Wallet (hosted wallet, CLI).
Give your agent a wallet with a few dollars of USDC in it, and it can run Browser Use tasks and pay as it goes. Pick a wallet:
A wallet that lives on your machine, built for coding agents: Claude Code,
Cursor, Codex.
A wallet Coinbase hosts for you. Sign in with email, fund with Apple Pay or
card, pay from the terminal.
Payments to Browser Use are **credit top-ups, not per-call fees**: each x402
payment (\$5 default, \$1 minimum) buys prepaid credit for a project tied to
your wallet, and unused credit carries over. See [pricing and
credits](/cloud/guides/x402#pricing-and-credits).
## AgentCash quickstart
[AgentCash](https://agentcash.dev) gives your coding agent a wallet and the tools to spend from it: check prices, pay for API calls, watch the balance. The wallet is a file on your machine.
```bash theme={null}
npx agentcash install
```
The interactive installer detects your agent client. Or add it directly:
```bash theme={null}
claude mcp add agentcash --scope user -- npx -y agentcash@latest # Claude Code
codex mcp add agentcash -- npx -y agentcash@latest # Codex
npx agentcash install --client cursor # Cursor
```
The first run creates a wallet at `~/.agentcash/wallet.json`. Get its
deposit address and send it USDC on **Base mainnet** (\$5 covers the default
top-up; \$1 is the minimum):
```bash theme={null}
npx agentcash@latest accounts
```
Or just ask your agent — the `list_accounts` and `get_balance` tools do the
same thing.
Prompt your agent:
```text theme={null}
Use AgentCash to POST to https://x402.api.browser-use.com/api/v3/sessions
with body {"task": "Go to example.com and tell me the page title"}.
Pay the $1 minimum option, then poll the returned session id at
GET /api/v3/sessions/{id} until status is "stopped" and show me the output.
```
The `fetch` tool handles the whole 402 → sign → retry loop. Use
`check_endpoint_schema` first if you want to see the price and input schema
without paying.
## Coinbase Agentic Wallet quickstart
[Agentic Wallet](https://docs.cdp.coinbase.com/agentic-wallet/welcome) is a wallet Coinbase hosts for you, driven from the terminal with the [`awal`](https://www.npmjs.com/package/awal) CLI. Sign in with your email — no keys to manage — fund it with Apple Pay or a card, and pay for API calls with one command. The [agentic-wallet-skills](https://github.com/coinbase/agentic-wallet-skills) package teaches your coding agent the same commands.
```bash theme={null}
npx skills add coinbase/agentic-wallet-skills # optional: teach your agent
npx awal auth login you@example.com # sends an OTP to your email
npx awal auth verify 123456 # paste the code
npx awal status
```
```bash theme={null}
npx awal show # opens the wallet UI → Fund → Apple Pay / card / Coinbase
npx awal balance
```
Or send USDC on Base directly to the address from `npx awal address`.
```bash theme={null}
npx awal x402 details https://x402.api.browser-use.com/api/v3/sessions
```
shows our payment options (\$5 default / \$1 minimum, USDC on Base) and the
task input schema, without paying. Then:
```bash theme={null}
npx awal x402 pay https://x402.api.browser-use.com/api/v3/sessions \
-X POST -d '{"task": "Go to example.com and tell me the page title"}' \
--max-amount 5000000 --json
```
`--max-amount` is in atomic USDC units: `1000000` = \$1.00.
The response contains the session `id`. Poll
`https://x402.api.browser-use.com/api/v3/sessions/{id}` until `status` is
`"stopped"`, then read `output`.
## Which one?
| | AgentCash | Coinbase Agentic Wallet |
| --------- | --------------------------------- | ------------------------------------------------------------------------------------------------- |
| Wallet | Local file, self-custody | Coinbase-hosted, email OTP |
| Funding | Send USDC on Base to your address | Onramp (Apple Pay / card / bank) or direct USDC |
| Interface | MCP tools + CLI | CLI (+ skill for agents, [MCP variant](https://docs.cdp.coinbase.com/agentic-wallet/mcp/welcome)) |
| Best for | Autonomous coding agents | Humans who want fiat funding; CDP-ecosystem apps |
Building a production app instead of driving a CLI? Use
[`CdpX402Client`](https://docs.cdp.coinbase.com/x402/quickstart-for-buyers) from
the CDP SDK (a CDP-managed server wallet) or [bring your own x402
client](/cloud/guides/x402#advanced-bring-your-own-x402-client).
## Related
* [x402 overview](/cloud/guides/x402) — SDK, Claude Code skill, raw HTTP, pricing, troubleshooting
* [AgentCash docs](https://agentcash.dev) · [agentcash-skills](https://github.com/Merit-Systems/agentcash-skills)
* [Agentic Wallet CLI quickstart](https://docs.cdp.coinbase.com/agentic-wallet/cli/quickstart) (Coinbase)