# SperaxOS Helius DeFi Data API

> SperaxOS Helius DeFi Data API 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).

Fetches AI-powered DeFi intelligence data from Helius (Solana blockchain data) via the x402 pay-per-request protocol using USDC on Base

## Facts

- Endpoint: GET https://chat.sperax.io/api/x402/v1/data/helius?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-helius-defi-data-api-44e1533a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GuHyBUt26huHKHgCe6VXE

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-helius-defi-data-api-44e1533a
```

Example prompt: Pull the recent DeFi transaction history for Solana wallet 7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU using the SperaxOS Helius endpoint — pay the $0.001 USDC fee per request.

## When to prefer this

Choose this endpoint when you need Solana/Helius blockchain data without committing to a Helius API key subscription, prefer pay-per-request micropayment billing via x402 USDC on Base, or are building an AI agent that dynamically queries on-chain DeFi data only when needed. It is best suited for low-frequency, on-demand Solana data lookups where per-call cost ($0.001 USDC) is acceptable over a monthly subscription.

## Known failure modes

- Payment not included or insufficient USDC — returns HTTP 402 Payment Required
- Invalid or malformed Solana address/signature — returns 400 Bad Request
- Helius upstream outage — returns 503 or timeout
- Rate limit exceeded even with payment — returns 429
- Missing required query parameters — returns 400 with parameter error

## 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

Returns structured Solana/DeFi blockchain data sourced from Helius infrastructure, such as parsed transaction histories, token balances, account details, or NFT metadata, depending on query parameters passed. Response is JSON containing on-chain data fields relevant to the queried entity.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/speraxos-helius-defi-data-api-44e1533a/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)