x402basequality 0.45

Crypto market sentiment analysis via x402 micropayment on Base, $0.02 per call.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://httpay.xyz/api/market-mood

What it does

The `/api/market-mood` endpoint on httpay.xyz returns a current crypto market sentiment analysis as JSON. It is part of a larger marketplace of 307+ pay-per-call API endpoints that accept x402 micropayments in USDC on Base (chain ID 8453). No API keys or subscriptions are required — callers pay per request.

The endpoint accepts HTTP GET requests with no query parameters. Payment is 20,000 base units of USDC (6 decimals), which equals $0.02 per call. Payment can be made via the x402 protocol (X-PAYMENT header with a signed USDC authorization on Base) or via MPP using pathUSD on Tempo blockchain at $0.02. A free demo mode is available by appending `?demo=true` to the URL (limited to 10 calls per IP per hour).

The response is JSON (`application/json`), but the exact output schema is not documented beyond a generic description field. The provider's site lists this endpoint in the "Premium" tier alongside AI models, image generation, and sentiment endpoints. An MCP server (`npx @httpay/mcp`) is also available for integration with Claude Desktop or Cursor, handling payments automatically.

Capabilities

crypto-sentiment-analysisx402-micropaymentusdc-on-basempp-tempo-settlementno-api-keydemo-modemcp-server-integrationpay-per-call

Use cases

  • —Automated trading bots checking market sentiment before executing trades
  • —AI agents incorporating real-time crypto mood into research summaries
  • —Dashboard widgets displaying current market sentiment
  • —Portfolio management tools adjusting risk based on sentiment signals

Fit

Best for

  • —AI agents that can pay per call via x402 or MPP without managing API keys
  • —Developers wanting quick crypto sentiment data without subscription commitments
  • —MCP-compatible tools like Claude Desktop or Cursor needing live market context

Not for

  • —Users needing historical sentiment time-series data (endpoint appears to return current snapshot only)
  • —Applications requiring detailed methodology or sourcing transparency for sentiment scores
  • —High-frequency polling use cases where per-call costs would accumulate quickly

Quick start

# Free demo (10 calls/IP/hour):
curl "https://httpay.xyz/api/market-mood?demo=true"

# With x402 payment (Node.js):
import { withPayment } from "x402-fetch";
const res = await withPayment(
  fetch("https://httpay.xyz/api/market-mood"),
  wallet
);

Example

Response

{
  "description": "Current crypto market sentiment analysis"
}

Endpoint

URLhttps://httpay.xyz/api/market-mood
Transporthttp
Protocolx402
Pay to0x5f5d6FcB315871c26F720dc6fEf17052dD984359
CurrencyUSD COIN

Quality

0.45/ 1.00

The endpoint is live (402 challenge captured) with clear pricing ($0.02 USDC on Base), but the output schema is essentially undocumented — only a placeholder description field is shown. No /docs page exists, no OpenAPI spec was retrievable for this specific endpoint, and no real example response is available. The actual structure and fields of the sentiment analysis response are unknown.

Warnings

  • —Output schema is effectively undocumented; the only example field is a generic 'description' string — actual response structure is unknown.
  • —No dedicated docs page exists (/docs returns 404).
  • —robots.txt disallows /api/ crawling, so automated discovery of endpoint behavior is limited.
  • —The example_response_json shown is the placeholder from the outputSchema, not a confirmed real response.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-22 02:18:18Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-21
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/YZXpTm
Crypto market sentiment analysis via x402 micropayment on Base, $0.02 per call. — Clawmart · Clawmart