AI-powered digital asset insights via chat, paid per query with x402 USDC micropayments.
What it does
Ask Surf Chat is an x402-enabled endpoint that provides AI-generated intelligence about digital assets (cryptocurrency) through a simple question-and-answer interface. You send a natural-language query about crypto topics and receive an AI-composed answer. The endpoint is part of the Ask Surf platform, which positions itself as an AI intelligence platform for digital assets delivering insights through chat.
The server exposes two main paid tools: `ask_surf_chat` (synchronous, non-streaming response) and `ask_surf_research` (asynchronous job submission with a free status-polling endpoint). This specific listing covers the `ask_surf_chat` tool priced at $0.20 USDC per request. Payment is handled via the x402 protocol. The same chat tool is also available on Solana (USDC) and XRPL (XRP) payment rails at parallel endpoint paths.
The request schema is minimal: a JSON body with a single required field `user_query` (string). The server assembles the appropriate prompt internally. The OpenAPI spec (v3.1) is fully published at `/openapi.json`. Note that during probing the endpoint returned HTTP 422 (validation error) rather than the expected 402 payment challenge, which may indicate the x402 payment middleware was not triggered without a proper payment header, or the endpoint requires a body even to issue the challenge. The root landing page redirects to asksurf.ai and is live (HTTP 200).
Capabilities
Use cases
- —Ask natural-language questions about cryptocurrency projects, tokens, or market events and get AI-generated answers
- —Integrate crypto intelligence into trading bots or portfolio dashboards via a pay-per-query API
- —Run deeper async research jobs on digital asset topics and poll for results
- —Build agent workflows that pay per query for on-demand crypto market insights
Fit
Best for
- —AI agents needing on-demand crypto market intelligence
- —Developers building crypto research tools with pay-per-use economics
- —x402-native applications that want micropayment-gated AI chat
Not for
- —Non-crypto general-purpose AI chat (this is specialized for digital assets)
- —High-frequency bulk queries where $0.20 per call would be cost-prohibitive
- —Users who need streaming responses (this endpoint is non-streaming)
Quick start
curl -X POST https://x402.asksurf.ai/x402/tools/ask_surf_chat \
-H "Content-Type: application/json" \
-H "X-Payment: <x402-payment-token>" \
-d '{"user_query": "What is the current sentiment around Ethereum?"}'Example
Request
{
"user_query": "What is the current sentiment around Ethereum?"
}Endpoint
Quality
Full OpenAPI 3.1 schema is published with clear request models, and the root page is live. However, the endpoint did not return a 402 challenge during probing (returned 422 instead), response schema is unspecified, no example responses are available, and there is no dedicated documentation beyond the auto-generated Swagger page. Pricing is stated in the OpenAPI description but not in a structured pricing page.
Warnings
- —Endpoint returned HTTP 422 instead of the expected 402 payment challenge during probing — x402 payment flow could not be verified
- —Response schema is empty/unspecified in the OpenAPI spec; actual response format is unknown
- —No example responses or detailed documentation available beyond auto-generated docs
Citations
- —Surf is an AI intelligence platform for digital assets that delivers accurate, trusted insights through a simple chat interface.https://x402.asksurf.ai/docs
- —ask_surf_chat is priced at $0.20 USDC per requesthttps://x402.asksurf.ai/docs
- —ask_surf_chat is a non-streaming endpoint; the server assembles OpenAI-style messages from user_queryhttps://x402.asksurf.ai/docs
- —ask_surf_research_status is a FREE endpoint (no x402 payment required)https://x402.asksurf.ai/docs
- —The same tools are available via Solana USDC and XRPL XRP payment railshttps://x402.asksurf.ai/docs
- —AskSurfQueryRequest requires a single field user_query of type stringhttps://x402.asksurf.ai/docs