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:

AgentCash

A wallet that lives on your machine, built for coding agents: Claude Code, Cursor, Codex.

Coinbase Agentic Wallet

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 buys prepaid credit for a project tied to your wallet. See the current options and credit terms under pricing and credits.

AgentCash quickstart

AgentCash 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.

1. Install the MCP server

   npx agentcash install
   

   The interactive installer detects your agent client. Or add it directly:

   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
   
2. Fund the wallet

   The first run creates a wallet at ~/.agentcash/wallet.json. Get its deposit address and send it USDC on Base mainnet. Check the current top-up options before funding:

   npx agentcash@latest accounts
   

   Or just ask your agent — the list_accounts and get_balance tools do the same thing.

3. Run a browser task

   Prompt your agent:

   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", "maxCostUsd": 0.75}.
   Pay the smallest available top-up, then poll the returned session id at
   GET /api/v3/sessions/{id} until status is "stopped", "error", or
   "timed_out". Show me the output on "stopped"; otherwise surface the final
   status and error.
   

   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. maxCostUsd is a per-task budget, separate from the wallet tool’s per-payment cap; replace the example value with the budget you want for the task.

Coinbase Agentic Wallet quickstart

Agentic Wallet is a wallet Coinbase hosts for you, driven from the terminal with the 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 package teaches your coding agent the same commands.

1. Install and sign in

   npx skills add coinbase/agentic-wallet-skills   # optional: teach your agent
   npx awal auth login [e-mail]             # sends an OTP to your email
   npx awal auth verify 123456                     # paste the code
   npx awal status
   
2. Fund with USDC on Base

   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.

3. Check the price, then pay

   npx awal x402 details https://x402.api.browser-use.com/api/v3/sessions
   

   shows the current payment options and task input schema without paying. Then:

   : "${X402_MAX_ATOMIC_USDC:?Set a cap after reviewing x402 details}"
   : "${BROWSER_USE_TASK_MAX_COST_USD:?Set a per-task budget in USD}"
   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\",\"maxCostUsd\":${BROWSER_USE_TASK_MAX_COST_USD}}" \
     --max-amount "$X402_MAX_ATOMIC_USDC" --json
   

   Set X402_MAX_ATOMIC_USDC after reviewing the options returned by awal x402 details. The value uses atomic USDC units. BROWSER_USE_TASK_MAX_COST_USD separately limits the task’s spend in USD.

4. Poll the session

   The response contains the session id. Poll https://x402.api.browser-use.com/api/v3/sessions/{id} until status is "stopped", "error", or "timed_out". Read output only after "stopped"; otherwise surface the final status and error.

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)
Best for	Autonomous coding agents	Humans who want fiat funding; CDP-ecosystem apps

Building a production app instead of driving a CLI? Use CdpX402Client from the CDP SDK (a CDP-managed server wallet) or bring your own x402 client.

Related

• x402 overview — SDK, raw HTTP, pricing, and troubleshooting
• AgentCash docs · agentcash-skills
• Agentic Wallet CLI quickstart (Coinbase)