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AgentTools Wei-ETH Unit Converter
x402
AgentTools Wei-ETH Unit Converter is a paid API for AI agents from agentstoolshub.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-12).
Converts between Ethereum denomination units (wei, kwei, mwei, gwei, microether, milliether, ether) using exact BigInt arithmetic to avoid floating-point errors.
Price / call$0.002
Success—
StatusUnknown
How this service works
Convert between wei, kwei, mwei, gwei, microether, milliether and ether with exact BigInt arithmetic. Decimal strings of any magnitude convert without floating-point error. Use this when an agent needs to exact Ethereum unit conversion — no float errors.
Output
Returns the converted numeric value in the requested target unit as a decimal string, computed with exact BigInt arithmetic to eliminate any floating-point precision loss.
Example use cases
Gas fee estimation in ether
“I have a gas price of 25 gwei and I need to show the user the cost in ether — can you convert 525000 gwei to ether exactly?”
Smart contract value display
“My smart contract returned a balance of 750000000000000000 wei. What is that in ether, using exact BigInt math so I don't get rounding issues?”
DeFi transaction amount sanity check
“I want to send 0.05 ether but my DEX shows amounts in gwei — convert 0.05 ether to gwei so I can verify the transaction input is correct.”
Technical details
Endpoint
GEThttps://agentstoolshub.com/api/v1/crypto/wei-eth-converter?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need exact, lossless Ethereum unit conversion without floating-point precision errors — especially for large integer values like raw wei amounts. Prefer it over client-side JavaScript Number math (which loses precision above 2^53) or string-based manual computation. Ideal for smart contract integrations, gas fee displays, DeFi UIs, and any context where rounding a wei amount would be incorrect.
Side effects
- Missing required 'value' query parameter returns an error
- Invalid or unsupported unit enum values for 'from' or 'to' return a validation error
- Non-numeric or malformed decimal string for 'value' returns a parsing error
- Payment not provided or invalid x402 payment header returns 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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