# Solana Address Transaction Signatures Lookup

> Solana Address Transaction Signatures Lookup is a paid API for AI agents from twin.unykorn.org, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-01).

Returns the 50 most recent transaction signatures for a given Solana wallet or program address

## Facts

- Endpoint: POST https://twin.unykorn.org/solana-signatures?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/solana-address-transaction-signatures-lookup-846ed887
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fDUjbYp64B8pLcGd50U2O

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 solana-address-transaction-signatures-lookup-846ed887 -d '<json body>'
```

Example prompt: Can you pull the 50 most recent transaction signatures for the Solana address 7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU?

## When to prefer this

Choose this endpoint when you need quick access to the 50 most recent Solana transaction signatures for any address or program, especially in agentic workflows requiring on-chain audit trails, monitoring, or triggering downstream lookups. It is a paid-per-call micro-payment endpoint (x402) suited for occasional lookups rather than high-frequency polling.

## Known failure modes

- Invalid or malformed Solana address (not matching base58 pattern) returns an error
- Address with no transaction history may return an empty signatures list
- Network or upstream RPC errors from Solana may cause lookup failures
- Payment failure via x402 protocol will block the request
- Rate limiting or service unavailability may cause timeouts

## How this service works

The 50 most recent transaction signatures for a Solana address — Genesis402 / UnyKorn Operator Network

## Output

A JSON object containing ok status, type field set to 'solana-signatures', a list of the 50 most recent transaction signatures for the queried address, a payment receipt with tx_hash, amount in USD, and receipt ID, and a generated_at ISO8601 timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "params": {
   "type": "object",
   "properties": {
    "address": {
     "type": "string",
     "pattern": "^[1-9A-HJ-NP-Za-km-z]{32,44}$"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "type": "solana-signatures",
  "receipt": {
   "tx_hash": "0x<64hex>",
   "amount_usd": 0.005,
   "receipt_id": "g402-<16hex>"
  },
  "generated_at": "<iso8601>"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/solana-address-transaction-signatures-lookup-846ed887/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from twin.unykorn.org](https://www.zero.xyz/host/twin.unykorn.org/llms.txt)