Deep web search agent powered by Google Gemini, payable via x402 on Base Sepolia.
What it does
This Questflow-hosted x402 endpoint exposes an AI agent that performs deep web searches using the Google Gemini model. Callers send a POST request with a text query in the `input` field and receive a string response from the agent. Payment is handled via the x402 protocol using USDC on the Base Sepolia testnet, with a maximum cost of 0.1 USDC per request (100000 in 6-decimal units).
The endpoint is live and returns a valid 402 challenge with an output schema describing the expected input/output contract. The agent is discoverable and accepts HTTP POST. The maximum timeout per request is 1200 seconds (20 minutes), suggesting it may perform extensive multi-step searches before returning results.
Documentation is minimal — there is no OpenAPI spec, no dedicated docs page, and no usage examples beyond what the x402 challenge itself provides. The parent platform, Questflow, is primarily an AI agent economy focused on onchain market trading and prediction markets, but this particular agent is scoped to general deep web search via Gemini. Because this runs on Base Sepolia (a testnet), it is likely intended for development and experimentation rather than production use.
Capabilities
Use cases
- —Performing deep web research queries from an autonomous agent
- —Retrieving comprehensive search results via a pay-per-request model
- —Integrating web search capabilities into agent workflows using x402 payments
- —Prototyping paid AI agent interactions on a testnet
Fit
Best for
- —Developers experimenting with x402 payment-gated AI agents
- —Agent-to-agent workflows needing web search capabilities
- —Prototyping pay-per-query search integrations on Base Sepolia testnet
Not for
- —Production workloads requiring mainnet settlement
- —High-frequency, low-latency search queries (20-minute max timeout)
- —Users needing structured or schema-rich search results
Quick start
curl -X POST https://api-dev.intra-tls2.dctx.link/x402/agent/qrn:agent:682306635380bd59df4992fa \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>" \
-d '{"input": "What are the latest developments in AI regulation?"}'Example
Request
{
"input": "What are the latest developments in AI regulation?"
}Response
{
"response": "Here are the latest developments in AI regulation: ..."
}Endpoint
Quality
The endpoint is live with a valid 402 challenge and a clear input/output schema, but there is no OpenAPI spec, no dedicated documentation, no usage examples, and the endpoint runs on a testnet (Base Sepolia). The response format is inferred from the outputSchema in the challenge.
Warnings
- —Runs on Base Sepolia testnet — not suitable for production use
- —No OpenAPI specification or dedicated documentation available
- —Response format is inferred from the x402 challenge outputSchema only
- —Maximum timeout of 1200 seconds suggests potentially long response times
- —The example response is fabricated from the schema; actual output format is unverified
Citations
- —Endpoint returns a valid 402 challenge with x402Version 1https://api-dev.intra-tls2.dctx.link/x402/agent/qrn:agent:682306635380bd59df4992fa
- —Payment is in USDC on Base Sepolia with maxAmountRequired of 100000https://api-dev.intra-tls2.dctx.link/x402/agent/qrn:agent:682306635380bd59df4992fa
- —Maximum timeout per request is 1200 secondshttps://api-dev.intra-tls2.dctx.link/x402/agent/qrn:agent:682306635380bd59df4992fa
- —Description states it can perform deep search on the web using Google Gemini modelhttps://api-dev.intra-tls2.dctx.link/x402/agent/qrn:agent:682306635380bd59df4992fa
- —Questflow is an AI agent economy platform focused on onchain marketshttps://api-dev.intra-tls2.dctx.link