Pay-per-call browser automation agent via x402 on Base, powered by Questflow.
What it does
This Questflow x402 endpoint exposes a managed browser-automation swarm agent that accepts a natural-language prompt and returns a text response. It is accessed over HTTP POST with an x402 payment header, settling in USDC on the Base network. The maximum cost per call is 0.50 USDC (500000 in 6-decimal units), and the endpoint allows up to 1200 seconds (20 minutes) for a response, suggesting it can handle long-running browser tasks.
The input schema is minimal: a single required string field called "input" containing your message to the agent. The output is likewise a single string field called "response". No OpenAPI spec, dedicated documentation page, or usage examples are published by the provider — the only technical contract available is the x402 challenge metadata returned by the endpoint itself.
Questflow is primarily an AI-agent platform focused on onchain market aggregation and autonomous trading clones. This particular endpoint appears to be one of their swarm agents exposed for external consumption via the x402 micropayment protocol. Because there is no public documentation beyond the x402 challenge and the provider's marketing site, the exact browser-automation capabilities (e.g., supported sites, JavaScript execution, screenshot capture, cookie handling) remain unspecified.
Capabilities
Use cases
- —Automating form fills, clicks, and navigation on websites via natural-language instructions
- —Scraping or extracting structured data from web pages without managing browser infrastructure
- —Running multi-step web workflows (login, search, extract) as a single API call
- —Integrating browser-based tasks into AI agent pipelines that settle payments on-chain
Fit
Best for
- —Developers who need managed, serverless browser automation without hosting headless browsers
- —AI agent orchestrators looking for x402-compatible tool endpoints
- —On-chain applications that want to pay per browser task in USDC on Base
Not for
- —High-volume, sub-second web scraping where latency and cost per call matter
- —Use cases requiring detailed browser control (custom cookies, proxies, specific viewport settings) — no such options are documented
- —Users who need a well-documented, schema-rich API with guaranteed SLAs
Quick start
curl -X POST https://api.questflow.ai/x402/swarm/qrn:swarm:68f096b20ebd74a7911b08b6 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>" \
-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
No OpenAPI spec, no dedicated docs, no usage examples, and no detailed capability description exist. The only technical contract is the x402 challenge metadata. Input/output schemas are trivially simple. The endpoint's actual browser-automation features are entirely unverified.
Warnings
- —No public documentation or OpenAPI schema available — all technical details inferred from x402 challenge metadata only.
- —Exact browser automation capabilities (screenshot support, JS execution, cookie handling, site restrictions) are undocumented.
- —Example response is fabricated for illustration; actual output format is unverified.
- —Provider's main product is an AI trading clone platform; this endpoint's maintenance priority is unclear.
- —Maximum cost of 0.50 USDC per call with a 20-minute timeout suggests potentially expensive, long-running operations.
Citations
- —x402 challenge returns maxAmountRequired of 500000 (0.50 USDC) on Base network with asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://api.questflow.ai/x402/swarm/qrn:swarm:68f096b20ebd74a7911b08b6
- —maxTimeoutSeconds is 1200 (20 minutes)https://api.questflow.ai/x402/swarm/qrn:swarm:68f096b20ebd74a7911b08b6
- —Description states: Provide browser automation functionality for any model, supporting secure, scalable, and fully managed web interactions.https://api.questflow.ai/x402/swarm/qrn:swarm:68f096b20ebd74a7911b08b6
- —Questflow is an AI agent platform aggregating onchain markets like Polymarket, Pump.fun, OKXhttps://api.questflow.ai