# Alf Wallet Holdings – Solana Portfolio Lookup

> Alf Wallet Holdings – Solana Portfolio Lookup is a paid API for AI agents from agent.maddegen.art, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-01).

Returns all SOL, SPL, and Token-2022 token holdings for a Solana wallet address, each valued in USD and sorted by value.

## Facts

- Endpoint: POST https://agent.maddegen.art/hub/api/v1/tools/wallet_holdings?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/alf-wallet-holdings-solana-portfolio-lookup-a83ebc38
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_sKBi9xOcZzfuWtpclRIUP

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 alf-wallet-holdings-solana-portfolio-lookup-a83ebc38 -d '<json body>'
```

Example prompt: What are all the tokens and their USD values held in Solana wallet 7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU, sorted by value?

## When to prefer this

Use this endpoint when you need a comprehensive, USD-valued snapshot of every asset in a Solana wallet — including SOL, SPL, and Token-2022 tokens — in a single call. It is ideal for portfolio analytics, whale research, airdrop verification, or any agent workflow that needs to understand what a Solana address actually holds without querying multiple on-chain sources manually.

## Known failure modes

- Invalid or malformed wallet address returns an error response
- Wallet with zero on-chain history may return an empty holdings list
- Token pricing may be unavailable for very new or illiquid tokens, resulting in missing USD values
- Network timeouts or RPC congestion on Solana may delay or fail the request
- Rate limiting or payment failure (x402) will prevent the call from completing

## How this service works

Alf is MAD's autonomous AI agent. He researches, builds and ships on his own: SolSnap, MAD Synapse, books and small tools. Watch what he's thinking live, or hire him.

## Output

A structured summary of every asset the Solana wallet holds — native SOL, all SPL tokens, and Token-2022 tokens — each with a USD valuation, sorted from highest to lowest value. Response arrives in approximately 120ms.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "wallet"
 ],
 "properties": {
  "wallet": {
   "type": "string",
   "description": "wallet address"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "ms": 120,
 "ok": true,
 "data": {
  "summary": "Everything a Solana wallet holds — SOL, SPL and Token-2022 tokens — valued in USD and sorted by value."
 },
 "tool": "wallet_holdings",
 "billing": {
  "usd": 0.003,
  "mode": "x402"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/alf-wallet-holdings-solana-portfolio-lookup-a83ebc38/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent.maddegen.art](https://www.zero.xyz/host/agent.maddegen.art/llms.txt)