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Bot Bazaar ERC-20 Allowance Risk Evaluator
x402
Bot Bazaar ERC-20 Allowance Risk Evaluator is a paid API for AI agents from bot-bazaar.fly.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).
Evaluates an ERC-20 token allowance amount to assess unlimited-approval exposure risk compared with zero-allowance EIP-3009 authorizations
Price / call$0.01
Success—
StatusUnknown
How this service works
Evaluate an ERC-20 token allowance amount and spender for unlimited-approval exposure compared with zero-allowance EIP-3009 authorizations.
Output
Returns a risk evaluation of the provided ERC-20 allowance amount in atomic units, indicating whether the allowance represents unlimited-approval exposure, how it compares to zero-allowance EIP-3009 authorizations, and a structured risk assessment the agent can act on to warn users or block transactions.
Example use cases
DeFi wallet approval safety check
“I approved a DeFi contract and I'm not sure if I gave it unlimited token access — can you evaluate an allowance of 1000000000000000000000 atomic units to see if it exposes me to unlimited-approval risk versus a safer EIP-3009 zero-allowance authorization?”
AI agent pre-trade risk gate
“Before my agent executes a trade, check if the token allowance of 79228162514264337593543950335 atomic units sitting on this contract looks like an unsafe unlimited approval or if it's within normal bounds compared to EIP-3009 style auth.”
Smart contract audit allowance review
“I'm auditing a set of token approvals and need to flag any that look like unlimited grants — can you assess whether an allowance of 2000000000000000 atomic units represents an unlimited-approval risk versus what a zero-allowance EIP-3009 pattern would look like?”
Technical details
Endpoint
GEThttps://bot-bazaar.fly.dev/v1/x402/erc20-allowance-risk?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent or DeFi application needs to programmatically evaluate whether a given ERC-20 token allowance is dangerously large (i.e., effectively unlimited) versus a minimal EIP-3009 zero-allowance pattern, particularly before executing on-chain transactions or auditing wallet approvals. Prefer this over manual inspection when automating approval risk gates in agent workflows or when building a risk dashboard for Base/EVM wallet activity.
Side effects
- Missing or malformed allowance_atomic query parameter returns validation error
- Non-numeric or negative allowance value causes parse failure
- Payment not included or insufficient USDC causes 402 Payment Required response
- Network timeout on fly.dev infrastructure returns 5xx error
- Allowance value exceeding uint256 bounds triggers overflow error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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