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Ethereum Address Regex Extractor
x402
Ethereum Address Regex Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-02).
Extracts all 0x-prefixed 20-byte hex Ethereum addresses from a text string, returning up to 20 matches.
Price / call$0.004
Success—
StatusUnknown
How this service works
Call when an agent needs 0x-prefixed 20-byte hex extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/regex-eth-address first.
Output
A list of up to 20 Ethereum addresses found in the input text, each formatted as a 0x-prefixed 40-character hexadecimal string (20 bytes). If no addresses are found, an empty list is returned — but the call is still billed.
Example use cases
Extract wallets from transaction log
“I have a raw transaction log here — can you pull out every Ethereum address mentioned in it? Here's the text: 'Block 18200000 from 0xde0B295669a9FD93d5F28D9Ec85E40f4cb697BAe to 0x5aAeb6053F3E94C9b9A09f33669435E7Ef1BeAf and fee collector 0xfB6916095ca1df60bB79Ce92cE3Ea74c37c5d359.'”
Audit smart contract addresses in docs
“Here's a section of our developer documentation — please find all the 0x wallet and contract addresses mentioned so I can verify they're correct: 'Deploy to 0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984 and call 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D for routing.'”
Extract recipient addresses from user message
“A user just pasted this message in our support chat — can you extract any Ethereum addresses from it? 'Please send my refund to 0x4B20993Bc481177ec7E8f571ceCaE8A9e22C02db, thanks.'”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/regex-eth-address?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to reliably extract 0x-prefixed 20-byte Ethereum addresses from arbitrary text without spinning up a local regex engine. It is especially useful in agent pipelines where text parsing utilities are not available. Always try the free /v1/sandbox/regex-eth-address endpoint first to avoid unnecessary charges, and only call this paid endpoint when the sandbox is unavailable or quota is exhausted.
Side effects
- Empty match list returned if no Ethereum addresses are present in the text — still billed $0.004 USDC
- Input text exceeding 100,000 characters will be rejected
- Malformed or non-hex 0x-prefixed strings will not be matched
- Only first 20 matches returned if text contains more than 20 addresses
- Payment failure if insufficient USDC balance for x402 protocol
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Input for this SKU. The route description says whether it is plain text, a URL, base64 bytes, or an already-encoded token. |
Tags
x402
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