# LensCrypt Token Approval Analytics by Chain and Address

> LensCrypt Token Approval Analytics by Chain and Address is a paid API for AI agents from lensc.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-13).

Retrieves token approval data for a given wallet address on a specified blockchain, enabling approval risk analysis.

## Facts

- Endpoint: GET https://lensc.vercel.app/api/approvals/%7Bchain%7D/%7Baddress%7D
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/lenscrypt-token-approval-analytics-by-chain-and-address-e16351db
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_f-uFY3wiQMNWlOdZISVmf

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-e16351db
```

Example prompt: Can you pull all the token approvals for my wallet 0xAbC123...def on Ethereum so I can see which contracts have spending permissions?

## When to prefer this

Use this endpoint when you need to audit or display token approval (allowance) data for a specific wallet address on a supported EVM or Solana chain. Prefer this over generic block explorers when you need structured, machine-readable approval data in an agent workflow, especially for security audits or DeFi risk assessment.

## Known failure modes

- Invalid or unsupported chain identifier returns an error
- Malformed wallet address returns a 400-level error
- Wallet with no approvals returns an empty result set
- Insufficient USDC balance for x402 payment causes payment failure
- Rate limiting or upstream RPC issues may cause timeouts

## 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 approval amounts or allowance limits.

## 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-e16351db/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from lensc.vercel.app](https://www.zero.xyz/host/lensc.vercel.app/llms.txt)