Browser-use cloud MCP server: web automation for any model via x402 micropayment on Base.
What it does
This Questflow x402 endpoint exposes a browser-use cloud MCP agent that performs web automation tasks on behalf of the caller. The agent accepts a text prompt (the `input` field) and returns a text response. Payment is handled via the x402 protocol on the Base network using USDC (asset 0x8335…2913), with a maximum charge of 0.1 USDC per request (100000 in 6-decimal units) and a generous 1200-second timeout, suggesting the agent may perform multi-step browser interactions before returning a result.
The endpoint is a POST request to `https://api.questflow.ai/x402/agent/qrn:agent:68cbd3ea1eac16d8cffc6041`. Callers must include an `X-PAYMENT` header conforming to x402 v1. The request body is JSON with a single required string field `input` containing the user's instruction to the agent. The response body contains a `response` string field with the agent's output.
Questflow is primarily an AI-agent platform focused on onchain market aggregation and autonomous trading clones. This particular agent appears to be a browser-automation service exposed through their x402 infrastructure. Documentation is minimal — there is no OpenAPI spec, no dedicated docs page, and no detailed usage guide. The output schema and payment terms are derived entirely from the x402 challenge header. Actual browser-automation capabilities, supported sites, rate limits, and reliability characteristics are unknown.
Capabilities
Use cases
- —Automating repetitive browser tasks such as form filling or data extraction via a simple text prompt
- —Integrating server-side web automation into AI agent pipelines that support x402 micropayments
- —Running multi-step browser workflows (e.g., navigating pages, clicking elements) without managing browser infrastructure
- —Paying per-request for on-demand web interaction without subscriptions or API keys
Fit
Best for
- —Developers building AI agents that need on-demand browser automation
- —x402-compatible agent orchestrators on the Base network
- —Quick, pay-per-use web tasks without hosting headless browsers
Not for
- —High-volume web scraping requiring predictable per-unit pricing and SLAs
- —Use cases requiring detailed browser session control, screenshots, or DOM inspection
- —Users who need comprehensive API documentation and guaranteed uptime
Quick start
curl -X POST https://api.questflow.ai/x402/agent/qrn:agent:68cbd3ea1eac16d8cffc6041 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>" \
-d '{"input": "Go to example.com and return the page title"}'Example
Request
{
"input": "Navigate to https://example.com and return the main heading text."
}Response
{
"response": "The main heading on example.com is: 'Example Domain'"
}Endpoint
Quality
The listing is based almost entirely on the x402 challenge header; there is no OpenAPI spec, no documentation page, no usage examples, and no detailed capability description. The input/output schema is minimal (single string in, single string out). Actual browser-automation behavior is inferred from the title/description only.
Warnings
- —No API documentation or OpenAPI spec available — /docs, /api, /pricing, /README all return 404
- —Agent capabilities are inferred solely from the title 'browser-use cloud MCP server'; no detailed feature list exists
- —Payment amount (up to 0.1 USDC) and 1200s timeout are from the x402 challenge but actual billing behavior is unverified
- —Questflow's main site focuses on trading clones, not browser automation — this agent's maturity and support level are unclear
Citations
- —x402 challenge specifies Base network, USDC asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, maxAmountRequired 100000, maxTimeoutSeconds 1200https://api.questflow.ai/x402/agent/qrn:agent:68cbd3ea1eac16d8cffc6041
- —Description from x402 challenge: 'Introducing browser-use cloud MCP server - web automation for any model through server-side MCP.'https://api.questflow.ai/x402/agent/qrn:agent:68cbd3ea1eac16d8cffc6041
- —Questflow main site describes an AI Clone platform for onchain market aggregation and autonomous tradinghttps://api.questflow.ai