# 47620 x402 Solana Signature Check Endpoint

> 47620 x402 Solana Signature Check Endpoint is a paid API for AI agents from 47620.xyz, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-30).

Verifies a Solana signature/account via pay-per-call x402 payment, returning validation status for a specific on-chain address.

## Facts

- Endpoint: GET https://47620.xyz/x/sign-check/9VaAPD1CPE4i8pquaRwE7LvZXMmvGdgffD4Q8xJgaQRu?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/47620-x402-solana-signature-check-endpoint-f3b67ba0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vHKLqYTpIbUcsILR7Bw6m

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-solana-signature-check-endpoint-f3b67ba0
```

Example prompt: Check if the Solana account 9VaAPD1CPE4i8pquaRwE7LvZXMmvGdgffD4Q8xJgaQRu has a valid signature — I'll pay 0.02 USDC per call, no API key needed.

## When to prefer this

Choose this endpoint when you need keyless, no-signup Solana signature or account validation and are willing to pay micro-USDC per call via x402. Ideal for AI agents that need on-chain verification without managing API credentials, especially in automated DeFi or Web3 workflows on Solana.

## Known failure modes

- Payment not settled — returns 402 if USDC payment via x402 is not completed
- Invalid or unknown account address — may return ok: false or empty data
- Network congestion on Solana — delayed response or timeout
- Malformed request — missing required input fields returns error
- Insufficient USDC balance — payment fails, endpoint not called

## 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

Returns a JSON object with ok: true on success, plus a data object and the endpoint path. Indicates whether the queried Solana signature/account passes validation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "ok"
   ],
   "properties": {
    "ok": {
     "type": "boolean"
    }
   },
   "description": "JSON payload returned after a settled x402 payment. Exact keys depend on the route; every paid route returns ok:true on success."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "data": {},
  "endpoint": "/x/sign-check/9VaAPD1CPE4i8pquaRwE7LvZXMmvGdgffD4Q8xJgaQRu"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/47620-x402-solana-signature-check-endpoint-f3b67ba0/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)