Browse Wait For

Wait for a CSS selector to appear on the current page (for async/SPA pages after a click or navigate, before you snapshot/act).

Wait for a CSS selector to appear on the current page (for async/SPA pages after a click or navigate, before you snapshot/act). Returns ok once present, else an honest timeout.

Metered access — free-key quota or x402 pay-per-call (USDC on Base). Details at /pricing.

Parameters

Parameter	Type	Required	Description
`browser_id`	string	required	from browse_open
`selector`	string	required	CSS selector to wait for
`timeout_ms`	integer	optional	max wait (default 8000)

Call it over MCP (JSON-RPC 2.0)

curl -s https://wingmanprotocol.com/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": {"name": "browse_wait_for", "arguments": {"browser_id": "example-id", "selector": "example"}}}'

Or plain HTTP

curl -s https://wingmanprotocol.com/tools/browse_wait_for \
  -H 'Content-Type: application/json' \
  -d '{"browser_id": "example-id", "selector": "example"}'

Try it live

Edit the JSON and run it — this POSTs to https://wingmanprotocol.com/tools/browse_wait_for from your browser.

This tool is x402-metered — agents pay per call with USDC on Base. The 402 response below is the standard x402 payment-requirements envelope: sign the EIP-3009 authorization and retry with the X-Payment header, or get a free key at /pricing (500 calls/month, no card, no crypto).