x402basequality 0.72

Top 3 trending altcoins based on AI-analyzed news and Twitter sentiment, paid via x402 USDC micropayment.

Price
per_call
Protocol
x402
Verified
no
Endpoint
https://x402.ottoai.services/trending-altcoins

What it does

The `/trending-altcoins` endpoint is part of Otto AI's x402 Agent Swarm, a suite of 30+ AI-powered crypto market intelligence, creative tools, and DeFi trading endpoints accessible via x402 V2 micropayments. This specific endpoint returns the top 3 hottest altcoins that traders may want to investigate, derived from real-time analysis of crypto news and Twitter activity. It costs $0.10 per call, payable in USDC on Base, Polygon, or Solana.

The endpoint is a simple GET request with no required parameters. It returns a JSON object with a `status` field and a `data` object containing the trending altcoin results. Payment follows the x402 V2 flow: an initial unauthenticated request receives a 402 response with a `PAYMENT-REQUIRED` header containing base64-encoded payment options (EIP-3009 USDC, Permit2 ERC-20, or Solana USDC). The caller signs the payment and retries with a `PAYMENT-SIGNATURE` header. On success, a signed EIP-712 receipt is returned in the `PAYMENT-RESPONSE` header. As a read-only data endpoint, it also supports Sign-In-With-X (SIWX) for 1-hour free repeat access after the first paid call.

Otto AI also offers an on-chain reputation system via ERC-8004 and provides machine-readable specs at `/.well-known/x402` and `/llm.txt`. The broader platform includes market intelligence (news, sentiment, token analysis, derivatives, DeFi analytics, TradFi macro), AI creative tools (image/video generation, research, transaction explainer), and trading execution (swaps via Odos, bridges via LiFi, Hyperliquid perps, yield farming).

Capabilities

trending-altcoinscrypto-market-intelligencetwitter-sentiment-analysisnews-analysisx402-micropaymentusdc-paymentmulti-chain-paymentsiwx-repeat-accesseip-712-receiptspermit2-ready

Use cases

  • —AI trading agents discovering which altcoins have the most buzz before making allocation decisions
  • —Portfolio dashboards surfacing trending tokens to users in real time
  • —Automated research pipelines that feed trending altcoin data into deeper analysis workflows
  • —Telegram/Discord bots providing daily trending altcoin alerts to community members
  • —Quantitative strategies incorporating social sentiment signals for altcoin momentum

Fit

Best for

  • —AI agents needing programmatic access to trending altcoin signals via micropayment
  • —Crypto traders wanting a quick pulse on which altcoins are gaining traction
  • —Developers building automated market intelligence pipelines

Not for

  • —Users needing historical trending data or backtesting (endpoint returns current snapshot only)
  • —Non-crypto use cases or traditional equity/commodity trend analysis
  • —Users without USDC on Base, Polygon, or Solana for payment

Quick start

# 1. Send GET to receive 402 challenge
curl https://x402.ottoai.services/trending-altcoins
# 2. Decode PAYMENT-REQUIRED header, sign USDC payment
# 3. Retry with PAYMENT-SIGNATURE header
curl -H "PAYMENT-SIGNATURE: <signed_payment>" \
  https://x402.ottoai.services/trending-altcoins

Example

Response

{
  "data": {
    "trending": [
      {
        "reason": "Surging Twitter mentions and positive KOL sentiment",
        "symbol": "PEPE"
      },
      {
        "reason": "Major protocol upgrade announcement driving news coverage",
        "symbol": "ARB"
      },
      {
        "reason": "RWA narrative gaining momentum across crypto Twitter",
        "symbol": "ONDO"
      }
    ]
  },
  "status": "success"
}

Endpoint

URLhttps://x402.ottoai.services/trending-altcoins
Transporthttp
Protocolx402
Pay to0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808
CurrencyUSD COIN

Quality

0.72/ 1.00

Full OpenAPI schema is available with clear endpoint description, pricing, and payment flow documentation. The endpoint returned a live 402 challenge confirming it is operational. However, the response data schema is generic (untyped `data` object), and no real example response is provided — the example_response_json above is inferred from the endpoint description and should be treated as illustrative.

Warnings

  • —Response data schema is untyped — the OpenAPI spec only defines `data` as a generic object without specifying the structure of trending altcoin results
  • —The example_response_json is inferred/illustrative, not sourced from actual API output
  • —This endpoint provides AI-generated trading signals — not financial advice; use at your own risk

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-22 00:49:39Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-21
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/PQp2bt