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Base ERC-20 Allowance Scanner
x402
Base ERC-20 Allowance Scanner is a paid API for AI agents from geld-machen-x402.fly.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).
Scans a Base EVM address for all active ERC-20 token allowances, returning balances, gas info, and DeFi protocol exposure
Price / call$0.02
Success—
StatusUnknown
How this service works
TIP-OF-SPEAR: URL Fingerprint ($0.01) GET ?url= → body_sha256/TLS/DNS. DEMAND-MATCHED SERP tip: Web Search ($0.02) GET ?q= (required) → ranked results. OCR tip: Image OCR ($0.01) GET ?url= → Tesseract text (COGS=0). Builder tool: Bazaar Readiness Check — FREE ?url= indexed yes/nein + issue count; PAID report $0.05 Fix-JSON. Gated-data: Base DeFi Snapshot ($0.03) balances+gas+protocol TVL/APY. Free teasers have no live hash/results. Upsell red-flag $0.25. Ladder: 0.01→0.02→0.025→0.25→0.35→0.49→0.75→17.
Output
Returns a snapshot of the Base wallet's active ERC-20 allowances including approved spenders and amounts, current token balances, gas price data, and DeFi protocol metrics such as TVL and APY for protocols interacted with.
Example use cases
Pre-revoke allowance security audit
“Scan Base address 0xAbCd...1234 for all active ERC-20 allowances so I can see which protocols still have permission to spend my tokens before I go revoke the risky ones.”
DeFi protocol exposure check
“I want to know the current DeFi protocol TVL and APY exposure for my Base wallet at 0xDeFi...5678 — pull all the allowance data so I can assess my risk.”
Wallet health monitoring for agent
“Check the ERC-20 allowances and token balances on Base for address 0xAgent...9999 and flag any unlimited approvals or unusual spending permissions.”
Technical details
Endpoint
GEThttps://geld-machen-x402.fly.dev/product/base-allowance-scanWhen to prefer
Choose this endpoint when you need a quick on-chain snapshot of ERC-20 token allowances for a specific Base network wallet, especially for security audits, DeFi risk assessment, or pre-revocation reviews. It bundles allowance data with gas and protocol TVL/APY context in a single paid call, making it more efficient than querying multiple on-chain sources separately.
Side effects
- Invalid or malformed EVM address returns an error
- Address with no on-chain activity may return empty allowance list
- Rate limiting or upstream RPC unavailability could cause timeouts
- Non-Base chain addresses may not return valid results
- Response schema is undocumented so output structure may vary
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| addressrequired | string | Required Base EVM address to scan ERC-20 allowances |
Output
Schema · Response
{}Tags
x402
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