Compute keccak256/sha256, a 4-byte function selector, an event topic0, or an ENS
Compute keccak256/sha256, a 4-byte function selector, an event topic0, or an ENS namehash/labelhash from a string or hex input.
Not tested: has real-world effectsour last check, 2026-09-24
0 of 0checks answered this week
n/amedian answer time
$0.001listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://api.agentstools.dev/crypto/hash
| Category | Market data |
|---|---|
| Provider host | api.agentstools.dev |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 6 from 5 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"algo": "selector",
"input": "transfer(address,uint256)"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"algo": {
"enum": [
"keccak256",
"sha256",
"selector",
"event_topic",
"namehash",
"labelhash"
],
"type": "string"
},
"encoding": {
"description": "How to read `input` for keccak256/sha256 (default utf8)",
"enum": [
"utf8",
"hex"
],
"type": "string"
},
"input": {
"description": "String / signature / ENS name / 0x-hex",
"type": "string"
}
},
"required": [
"algo",
"input"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}