# 47620 x402 Crypto Brief — Multichain On-Chain Data (Solana · Base · Polygon)

> 47620 x402 Crypto Brief — Multichain On-Chain Data (Solana · Base · Polygon) is a paid API for AI agents from 47620.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-10).

Returns a brief on-chain data summary for a crypto symbol, payable per-call via x402 USDC with no API keys required.

## Facts

- Endpoint: GET https://47620.xyz/x/crypto/brief/%7Bsymbol%7D?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/47620-x402-crypto-brief-multichain-on-chain-data-solana-base-polygon-066667fb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_99b50h245hrBM4vQNONBk

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 47620-x402-crypto-brief-multichain-on-chain-data-solana-base-polygon-066667fb
```

Example prompt: Give me a quick on-chain brief for SOL — I'll pay the $0.01 USDC fee via x402, no API key needed.

## When to prefer this

Choose this endpoint when you need pay-per-call on-chain crypto data across Solana, Base, or Polygon without API keys or subscriptions, and your agent can handle x402 USDC micropayments. Ideal for agentic workflows where cost accountability per call matters and the chain you pay on can differ from the chain you query.

## Known failure modes

- Payment not received or insufficient USDC — returns 402 Payment Required
- Invalid or unrecognized symbol in path — may return error or empty data
- Chain mismatch or unavailable chain data — partial or empty response
- x402 facilitator unreachable — payment flow fails before data is returned
- Rate or network issues on the queried chain — stale or missing fetchedAt

## How this service works

Non-custodial x402 payment gateway on Solana (1% on-chain fee) plus a pay-per-call Solana data API for agents: token price, account balances, tx lookup, trending DEX pairs, network health. No signup, no API key — pay USDC per call.

## Output

A JSON object with an ok boolean, a data object containing a fetchedAt ISO timestamp, and an endpoint identifier string ('crypto-brief'), confirming the on-chain brief was fetched successfully.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "data": {
   "fetchedAt": "<iso>"
  },
  "endpoint": "crypto-brief"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/47620-x402-crypto-brief-multichain-on-chain-data-solana-base-polygon-066667fb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 47620.xyz](https://www.zero.xyz/host/47620.xyz/llms.txt)