# SperaxOS Dune Analytics Popular Queries

> SperaxOS Dune Analytics Popular Queries is a paid API for AI agents from chat.sperax.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-20).

Returns a list of popular Dune Analytics queries filtered by DeFi category (DeFi, NFTs, Network, Scaling, Lending, Staking)

## Facts

- Endpoint: POST https://chat.sperax.io/api/x402/tools/dune-analytics/getPopularQueries?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/speraxos-dune-analytics-popular-queries-b0f7a1b7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_th5eSEzS93uHRj345Vlk8

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 speraxos-dune-analytics-popular-queries-b0f7a1b7 -d '<json body>'
```

Example prompt: What are the most popular Dune Analytics queries in the Lending category right now?

## When to prefer this

Choose this endpoint when you need to discover what Dune Analytics queries are trending or popular within a specific blockchain/DeFi category, especially if you want community-validated on-chain analytics without building queries from scratch. Prefer this over a general web search when you need structured, categorized query metadata from Dune specifically.

## Known failure modes

- Invalid category value returns an error or empty results
- Payment of 0.001 USDC via x402 protocol fails due to insufficient funds or wallet misconfiguration
- Dune Analytics upstream API unavailable causing 502/503 response
- No queries found for a very specific or low-traffic category

## How this service works

AI-powered DeFi intelligence APIs payable via the x402 HTTP payment protocol. No API key required — pay per request with USDC on Base. Identity-only (SIWX) endpoints are free for wallets with an agentcash identity.

## Output

A list of popular Dune Analytics queries, likely including query titles, descriptions, view/execution counts, and category tags, filtered to the requested category if one is supplied.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "category": {
   "type": "string",
   "description": "Filter by category (DeFi, NFTs, Network, Scaling, Lending, Staking)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/speraxos-dune-analytics-popular-queries-b0f7a1b7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from chat.sperax.io](https://www.zero.xyz/host/chat.sperax.io/llms.txt)