# LensCrypt Token Approvals Lookup

> LensCrypt Token Approvals Lookup is a paid API for AI agents from lenscrypt.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-08).

Retrieves token approval data for a given wallet address on a specified blockchain chain

## Facts

- Endpoint: GET https://lenscrypt.vercel.app/api/approvals/%7Bchain%7D/%7Baddress%7D
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-08
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/lenscrypt-token-approvals-lookup-a13b2c81
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FjTkv_N1D9zaQuPn0Gb9i

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 lenscrypt-token-approvals-lookup-a13b2c81
```

Example prompt: Check what token approvals wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 has given on Ethereum — I want to see which contracts are allowed to spend its tokens.

## When to prefer this

Use this endpoint when you need to audit token approvals for a specific wallet address on a particular EVM-compatible chain, especially when assessing DeFi security risk, identifying unlimited allowances, or helping users decide what to revoke. Prefer this over generic blockchain explorers when you need structured, API-accessible approval data with pay-per-call pricing via USDC.

## Known failure modes

- Invalid wallet address format returns an error
- Unsupported chain identifier returns a 400 or empty result
- Wallet with no approvals returns an empty list
- Payment not processed via x402 returns 402 Payment Required
- Rate limiting or service unavailability returns 5xx errors

## How this service works

81 paid REST endpoints covering wallet analytics, DeFi yields, token safety, smart money tracking, whale alerts, sniper detection, GMX perps, Solana tools, protocol stats, gas tracking, DEX quotes, NFT analytics, social signals, and 8 AI-powered endpoints (MiMo V2.5). Pay USDC via x402 protocol on Base.

## Output

Returns a list of token approval records for the specified wallet on the given chain, including approved spender contracts, token addresses, and allowance amounts, helping users audit and manage their on-chain risk exposure.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "status": "ok"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/lenscrypt-token-approvals-lookup-a13b2c81/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from lenscrypt.vercel.app](https://www.zero.xyz/host/lenscrypt.vercel.app/llms.txt)