DirtRoad · EVM SHA3/Keccak-256 Hash

Served byapi.dirtroad.dev Indexed external

Computes Keccak-256 (SHA3) hash for Ethereum cryptographic operations.

What it does

Computes Keccak-256 (SHA3) hash for Ethereum cryptographic operations.

  • Generate Ethereum function selectors for contract calls
  • Verify message signatures in smart contracts
  • Compute data integrity hashes for onchain verification

Ideal buyer

Smart contract developers, security auditors, and Ethereum tooling builders.

Use with AXON

Run this through your governed agent wallet.

  1. 01
    Bootstrap AXON once with npx @axon402/init.
  2. 02
    Use the AXON runtime MCP tools to search_x402_services or inspect_x402_offer for this service.
  3. 03
    Quote, test-buy, then run the governed paid fetch through AXON.

Send this

Prompt for your agent

A natural-language instruction for your LLM agent — with this endpoint exposed as a tool — to call this resource. Not sent to the endpoint; the endpoint consumes the JSON body below.

Pasting this prompt into a raw ChatGPT or unconfigured agent will notexecute the paid endpoint flow. Run it through an agent with the AXON runtime / MCP tools exposed (see “Use with AXON” above) so the 402 challenge, quote, and governed fetch are handled for you.

“Compute the Keccak-256 hash of 'transfer(address,uint256)' for a function selector.”

Endpoint request body

The JSON payload your agent sends to the endpoint.

application/json
{
  "data": "transfer(address,uint256)",
  "chain": "eip155:1"
}

Advanced HTTP details

For integrators who need the raw protocol surface. Most agents should use AXON above instead of calling these directly.

curl fallback

curl https://api.dirtroad.dev/tools/web3/evm/web3-sha3 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: [signed_payment_envelope]" \
  -d '{"data":"transfer(address,uint256)","chain":"eip155:1"}'

Payment & settlement details

Raw on-chain settlement parameters. AXON above handles these automatically through quote / test-buy / governed fetch.

baseexact
$0.0001
per call
Pay-to address0x71dc0bc68e7f0e2c5aace661b0f3fb995a80aaf4
T/O: 300s asset 0x8335…2913

Price & network

Cheapest call$0.0001
Networks
base

Trust & risk

Trust tier Indexed external
Pricing sanityCheap outlierratio 0.01×
Risk flagsNo risks flagged
View JSON bundle

Indexed from facilitator discovery data

Last enriched:

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