# FomoScan Wallet Lookup

> FomoScan Wallet Lookup is a paid API for AI agents from www.fomoscan.dev, paid per call via x402, $0.2/call, status unknown (last checked 2026-10-29).

Resolve a FOMO trader's user profile from a verified on-chain wallet address (Solana or 0x-prefixed EVM)

## Facts

- Endpoint: GET https://www.fomoscan.dev/v2/user/wallet/0x04e4bA53F19B3e4deb4a78cA9543B7e92a228199?utm_source=zero.xyz
- Price: $0.2/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fomoscan-wallet-lookup-5d79ba13
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oVKos7YMSuRJZUHNjX6hz

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 fomoscan-wallet-lookup-5d79ba13
```

Example prompt: Can you look up the FOMO trader profile for the wallet address 0x04e4bA53F19B3e4deb4a78cA9543B7e92a228199 — I only have the wallet and not their handle or user ID.

## When to prefer this

Use this endpoint only when you have a raw on-chain wallet address (Solana base58 or 0x-prefixed EVM) and no FOMO handle or user ID. If you already have a handle or user ID, prefer those cheaper lookup endpoints ($0.10) instead. This endpoint is the correct fallback when the only known identifier is blockchain-native.

## Known failure modes

- Wallet address not found or not linked to any FOMO account — returns empty or 404
- EVM address provided without 0x prefix — rejected as invalid input
- Invalid or malformed Solana/EVM address format — schema validation error
- Wallet exists on-chain but is not verified/linked to a FOMO profile — no result returned
- Rate limiting or payment failure for the $0.20 USDC per-call cost

## How this service works

Resolve a FOMO trader by verified Solana or 0x-prefixed EVM wallet. Use only when you have an on-chain address and neither handle nor user id — $2.00 vs $0.10 for those. Same User profile. EVM addresses must include 0x.

## Output

Returns a FOMO User profile object linked to the provided wallet address, including the trader's stable user ID, public handle, and associated profile metadata — the same profile structure returned by handle or user ID lookups.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fomoscan-wallet-lookup-5d79ba13/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.fomoscan.dev](https://www.zero.xyz/host/www.fomoscan.dev/llms.txt)