# Strale Approval Security Check

> Strale Approval Security Check is a paid API for AI agents from api.strale.io, paid per call via x402, $0.0216/call, status unknown (last checked 2026-09-15).

Checks a wallet address for potentially risky or malicious token approvals on EVM-compatible chains, returning an audit record with cryptographic chain hashing.

## Facts

- Endpoint: GET https://api.strale.io/x402/v2/approval-security-check
- Price: $0.0216/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/strale-approval-security-check-a4aa0922
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WA6Z7uqYNDifKNL0rDgc1

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 strale-approval-security-check-a4aa0922
```

Example prompt: Can you scan my Ethereum wallet 0xAbc123...def for any risky or malicious token approvals and tell me which ones I should revoke?

## When to prefer this

Use this endpoint when you need a cryptographically audited, independently tested approval security check across multiple EVM chains (Ethereum, BSC, Base) with tamper-evident audit records. Prefer this over generic blockchain explorers when you need structured, machine-readable output with audit provenance for agent workflows or compliance reporting.

## Known failure modes

- Invalid or malformed wallet address (non-0x format) returns a validation error
- Unsupported chain ID returns an error or empty result
- No approvals found returns empty findings (not an error)
- Rate limiting or payment failure returns a 402 or 429 status
- Network congestion may cause delayed on-chain data lookups

## How this service works

The trust layer for AI agents — 250+ independently tested data capabilities across 27 countries. Execute capabilities via REST, MCP, A2A, or x402 micropayments. Every call returns an audit record with cryptographic chain hashing.

## Output

Returns a security assessment of the wallet's token approvals, including flagged risky or unlimited allowances, contract details, and an audit record with a cryptographic chain hash for tamper-evident verification.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/strale-approval-security-check-a4aa0922/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.strale.io](https://www.zero.xyz/host/api.strale.io/llms.txt)