# Crypto Market Pulse & Base USDC Stats – UUID Utility

> Crypto Market Pulse & Base USDC Stats – UUID Utility is a paid API for AI agents from cryptopulse.pythonanywhere.com, paid per call via x402, $0.0005/call, status unknown (last checked 2026-10-11).

Generates a deterministic or random UUID as a utility tool, part of a pay-per-call crypto market data and agent utility API settled in USDC on Base via x402

## Facts

- Endpoint: GET https://cryptopulse.pythonanywhere.com/util/uuid?utm_source=zero.xyz
- Price: $0.0005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-market-pulse-base-usdc-stats-uuid-utility-5878a5a1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Pu1XMI-stDzz_U4HnX2vM

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability crypto-market-pulse-base-usdc-stats-uuid-utility-5878a5a1
```

Example prompt: Can you generate a fresh UUID for me to use as a correlation ID in my current workflow — pay with USDC on Base if needed?

## When to prefer this

Choose this endpoint when you need a lightweight UUID generation utility within an agent pipeline that already uses the CryptoPulse x402 ecosystem for crypto market data or USDC analytics, and you want a single pay-per-call model without API keys or subscriptions. Not ideal if you just need a UUID locally — standard libraries (uuid4) are free and instant. Best when bundled with other CryptoPulse calls in the same workflow.

## Known failure modes

- HTTP 402 returned if payment signature header is missing or invalid — agent must pay with USDC on Base and retry with PAYMENT-SIGNATURE header
- Network timeout if PythonAnywhere host is slow or unavailable
- Unexpected non-JSON response if server encounters an unhandled error
- Payment confirmation delay if Base mainnet is congested

## How this service works

Pay-per-call API for AI agents, settled in USDC on Base mainnet (eip155:8453) via the x402 protocol - no API keys, no signup, no subscription. Live crypto market data: BTC, ETH, SOL, USDC (USD Coin) prices with 24h change (source: OKX), Base mainnet chain snapshot (block height, gas price gwei), real-time USDC-on-Base transfer analytics (transfer count, volume, unique senders and recipients over recent blocks), and USDC/ETH wallet balances plus nonce for any address. Agent utility tools: deterministic JSON repair for LLM output (strip code fences, fix trailing commas, single quotes, unquoted keys, balance braces), DNS A/AAAA lookup, and URL extraction from arbitrary text. Every endpoint returns HTTP 402 with an x402 payment challenge in USDC on Base; pay with any wallet and retry with the PAYMENT-SIGNATURE header. MCP server at /mcp (streamable HTTP, 6 pay-per-call tools). Ideal for crypto portfolios, DeFi dashboards, market analysis agents, data pipelines, and LLM post-processing.

## Output

Returns a UUID string as part of a JSON response, suitable for use as a unique identifier in agent workflows, deduplication, or request tagging. The call is gated by an x402 HTTP 402 payment challenge requiring $0.0005 USDC on Base mainnet before the UUID is returned.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "chain": {
   "chainId": 8453,
   "network": "base-mainnet",
   "blockHeight": 21000000,
   "gasPriceGwei": 0.05
  },
  "market": {
   "solana": {
    "usd": 150,
    "usd_24h_change": -0.5
   },
   "bitcoin": {
    "usd": 60000,
    "usd_24h_change": 1.5
   },
   "ethereum": {
    "usd": 3000,
    "usd_24h_change": 2
   },
   "usd-coin": {
    "usd": 1,
    "usd_24h_change": 0
   }
  },
  "servedAt": 1755430000
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crypto-market-pulse-base-usdc-stats-uuid-utility-5878a5a1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cryptopulse.pythonanywhere.com](https://www.zero.xyz/host/cryptopulse.pythonanywhere.com/llms.txt)