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Token Approval Risk Check for EVM Wallets
x402
Token Approval Risk Check for EVM Wallets is a paid API for AI agents from wallet-portfolio-history-mcp.mtree.workers.dev, paid per call via x402, $0.200000/call, status unknown (last checked 2026-09-15).
Analyzes token approval exposure for a wallet address, flagging dangerous spender approvals, unlimited allowances, and approval-to-balance ratios with revoke-or-cap recommendations.
Price / call$0.200000
Success—
StatusUnknown
How this service works
Hosted approval risk check for Base and EVM agents before signing token approvals or swaps: dangerous spender approvals, unlimited allowance exposure, approval-to-balance ratios, revoke-or-cap actions, and agent spend-control policy from fresh D1 wallet snapshots plus live allowance reads. Price 0.20 USDC on Base via x402. Demo: https://wallet-portfolio-history-mcp.mtree.workers.dev/demo/tools/approval_risk. Contact: https://wallet-portfolio-history-mcp.mtree.workers.dev/contact.
Output
Returns a token-by-token breakdown of approval exposure including dangerous spender flags, unlimited allowance indicators, approval-to-balance ratios, revoke-or-cap action recommendations, and an agent spend-control policy derived from fresh D1 wallet snapshots and live allowance reads.
Example use cases
Example prompt
“Before you sign this swap, check the approval risk for wallet 0xAbC123... on Base — flag any dangerous spenders, unlimited allowances, or bad approval-to-balance ratios and tell me if I should revoke or cap anything.”
Technical details
Endpoint
POSThttps://wallet-portfolio-history-mcp.mtree.workers.dev/tools/approval_riskWhen to prefer
Use this endpoint when an autonomous agent needs to gate-check token approvals before signing a swap or approval transaction on Base or EVM chains, especially when you need live allowance reads combined with snapshot-based policy enforcement. Prefer over generic allowance checkers when you need structured revoke/cap recommendations and agent spend-control policy in one call.
Side effects
- Invalid or malformed wallet address returns an error
- Wallet with no token approvals returns empty risk results
- Network errors fetching live allowance data may produce incomplete results
- Unsupported chain (non-EVM or non-Base) may return an error or no data
- Payment not fulfilled (x402) results in 402 response blocking the check
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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