# LensCrypt Token Approval Analytics — Get Approvals by Chain and Address

> LensCrypt Token Approval Analytics — Get Approvals by Chain and Address is a paid API for AI agents from tolens.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-16).

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

## Facts

- Endpoint: GET https://tolens.vercel.app/api/approvals/%7Bchain%7D/%7Baddress%7D
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/lenscrypt-token-approval-analytics-get-approvals-by-chain-and-address-4cd82c65
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-xxYsRqhkrFHq1g6ansHj

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-get-approvals-by-chain-and-address-4cd82c65
```

Example prompt: Can you pull all the token approvals for wallet 0xABCDEF1234567890abcdef1234567890ABCDEF12 on Ethereum so I can see which contracts are approved to spend its tokens?

## When to prefer this

Use this endpoint when you need to audit or inspect token approval allowances for a specific wallet address on a given blockchain. Ideal for security reviews, DeFi risk assessments, or pre-revocation analysis to identify which contracts have spending permissions on a wallet's tokens.

## Known failure modes

- Invalid or malformed wallet address returns an error response
- Unsupported chain identifier causes a lookup failure
- Payment not processed via x402 protocol results in 402 Payment Required
- Rate limiting or upstream data unavailability may return an error
- Empty result set if wallet has no approvals on the specified chain

## 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 containing token approval records for the specified wallet address on the given chain, including approved spender contracts, approval amounts, and status information.

## 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-get-approvals-by-chain-and-address-4cd82c65/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tolens.vercel.app](https://www.zero.xyz/host/tolens.vercel.app/llms.txt)