x402-payable agent returning real-time Bitcoin and Ethereum price dashboards via Questflow swarm.
What it does
This x402-enabled endpoint exposes a Questflow-hosted AI agent that provides real-time dashboards displaying Bitcoin and Ethereum prices, market data, and trend charts. The agent accepts a natural-language message as input and returns a text response with the requested crypto market information. It supports both automatic and manual refresh capabilities for up-to-date pricing.
Payment is handled via the x402 protocol on the Base Sepolia testnet using USDC (asset 0x036CbD53842c5426634e7929541eC2318f3dCF7e). The maximum amount required per request is 500,000 units (likely 0.50 USDC given 6-decimal USDC), with a maximum timeout of 1,200 seconds. The endpoint accepts HTTP POST requests with a JSON body containing an "input" string field and returns a JSON object with a "response" string field.
The agent is part of the Questflow platform, which aggregates onchain markets and provides AI-driven trading and market intelligence tools. Documentation is sparse — there is no OpenAPI spec, no dedicated docs page, and no detailed API reference beyond the x402 challenge metadata. The endpoint appears to be on a development/staging domain (api-dev), suggesting it may not yet be production-ready.
Capabilities
Use cases
- —Querying current Bitcoin and Ethereum prices via a pay-per-request agent
- —Retrieving crypto market trend data for portfolio monitoring
- —Integrating real-time crypto dashboards into agent workflows
Fit
Best for
- —Developers experimenting with x402 payment protocol on Base Sepolia testnet
- —Agents needing on-demand BTC/ETH price and trend information
- —Prototyping pay-per-call crypto data services
Not for
- —Production trading systems requiring guaranteed uptime (this is a dev endpoint)
- —Historical crypto data bulk downloads
- —Non-crypto market data needs
Quick start
curl -X POST https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68ef7e429c48f862fcc4d377 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>" \
-d '{"input": "What is the current price of Bitcoin and Ethereum?"}'Example
Request
{
"input": "Show me the current Bitcoin and Ethereum prices with trend data"
}Response
{
"response": "Bitcoin (BTC): $67,432.10 (+2.3% 24h) — Ethereum (ETH): $3,521.45 (+1.8% 24h). Both showing upward trend over the past 7 days."
}Endpoint
Quality
No OpenAPI spec, no documentation pages, no usage examples beyond the x402 challenge metadata. The endpoint is on a dev domain (api-dev) suggesting pre-production status. Input/output schema is minimal and inferred from the x402 challenge outputSchema. Response example is fabricated based on the description since no actual response sample is available.
Warnings
- —Endpoint is on a development domain (api-dev.intra-tls2.dctx.link) — may be unstable or ephemeral
- —Payment network is Base Sepolia (testnet), not mainnet — real monetary value unclear
- —No OpenAPI spec or dedicated documentation available
- —No docs, pricing, or README pages found on the server (all return 404)
- —Response example is inferred, not sourced from actual API output
Citations
- —x402 challenge requires USDC payment on base-sepolia with maxAmountRequired of 500000 and maxTimeoutSeconds of 1200https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68ef7e429c48f862fcc4d377
- —Description states real-time dashboards displaying Bitcoin and Ethereum prices, market data, and trend chartshttps://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68ef7e429c48f862fcc4d377
- —Questflow platform aggregates Polymarket, Pump.fun, Opinion Labs, OKX and onchain marketshttps://api-dev.intra-tls2.dctx.link
- —Input schema accepts a string field 'input' via HTTP POST and returns a string 'response'https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68ef7e429c48f862fcc4d377