# LensCrypt Token Approval Analytics by Chain and Address

> LensCrypt Token Approval Analytics by Chain and Address is a paid API for AI agents from lanescrypt.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, showing which contracts have been granted spending permissions

## Facts

- Endpoint: GET https://lanescrypt.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-approval-analytics-by-chain-and-address-7a960441
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_M1zdR_tYbgom5AAHzv4bk

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-approval-analytics-by-chain-and-address-7a960441
```

Example prompt: Pull up all token approvals for wallet address 0xAbc123... on Ethereum so I can see which contracts have spending permissions on it.

## When to prefer this

Use this endpoint when you need to audit token approvals for a specific wallet address on a supported blockchain — particularly useful for DeFi security checks, identifying risky unlimited approvals, or building wallet analytics dashboards. Prefer this over generic blockchain explorers when you need structured, programmatic approval data payable per-call via USDC.

## Known failure modes

- Invalid or malformed wallet address returns error
- Unsupported chain identifier returns 4xx error
- No approvals found returns empty result set
- Payment failure via x402 returns 402 response
- Rate limiting may return 429 if quota exceeded

## 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 JSON object with approval records showing which smart contracts have been granted token spending permissions for the specified wallet address on the given chain, including token details and allowance amounts.

## 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-approval-analytics-by-chain-and-address-7a960441/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from lanescrypt.vercel.app](https://www.zero.xyz/host/lanescrypt.vercel.app/llms.txt)