MARKET MONITOR / CATALOGUE Services 139,245 MCP listed 41,906 x402 97,443 Rails Base / Solana / Polygon / Arbitrum Imported 2026-11-03 · 3 sources
Task

Deterministic

173 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.

Hash sha512 x402 REST usage

SHA-512 digest of text or raw bytes — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Other services 2 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Hash sha3 256 x402 REST usage

SHA3-256 digest of text or raw bytes — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Other services 2 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Hash double sha256 x402 REST usage

Bitcoin HASH256 — SHA-256 applied twice — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Other services 2 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Eth message hash x402 REST usage

EIP-191 digest of a message (what personal_sign actually signs) — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Crypto & Payments 2 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Abi event topic x402 REST usage

Event topic0 from a Solidity event signature — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Crypto & Payments 2 calls / 30d checked 2026-11-01
0.003 USDC per call per call

EIP-712 typed-data digest x402 REST usage

EIP-712 typed-data digest — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Crypto & Payments 2 calls / 30d checked 2026-11-02
0.003 USDC per call per call

Canonical JSON and its digest x402 REST usage

Canonical JSON and its digest — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Other services 2 calls / 30d checked 2026-11-02
0.003 USDC per call per call

Grokzilla x402 Micro Pay x402 REST usage

Resolve ENS (.eth) on Ethereum and Basenames (.base.eth) on Base, forward or reverse. Returns address, name, source, forward_verified, optional avatar.

grokzilla.shop Crypto & Payments 2 calls / 30d checked 2026-11-02
0.003 USDC per call per call

Foundry PAR-007 x402 REST usage

Repair bounded near-JSON into valid deterministic JSON and optionally validate a safe JSON Schema subset.

foundry-par007-machine-revenue-mainnet.inference-chip-index.workers.dev Other services 1 calls / 30d checked 2026-11-03
0.005 USDC per call per call

Json diff x402 REST usage

Structural difference between two JSON values — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Other services 1 calls / 30d checked 2026-10-27
0.003 USDC per call per call

Merkle root x402 REST usage

Merkle root over a list of leaves — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Other services 1 calls / 30d checked 2026-10-27
0.003 USDC per call per call

Merkle verify x402 REST usage

Verify a merkle proof against a root — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Other services 1 calls / 30d checked 2026-10-27
0.003 USDC per call per call

Abi decode x402 REST usage

ABI-decode return data against declared types — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Dev & Code 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Abi encode x402 REST usage

ABI-encode a list of typed parameters — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Dev & Code 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Address identify x402 REST usage

Which chain does this address belong to, and is it well-formed — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Geo & Maps 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Eth contract address x402 REST usage

Predict a contract address before it is deployed — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Geo & Maps 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Eth rlp encode x402 REST usage

RLP-encode a value or nested list — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Dev & Code 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Apr apy x402 REST usage

Convert between APR and APY at any compounding frequency — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Other services 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Base58check verify x402 REST usage

Verify a base58check string and split out its version byte — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Geo & Maps 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Calldata split x402 REST usage

Split calldata into its selector and 32-byte words — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Crypto & Payments 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Decode bech32 x402 REST usage

Decode and checksum-verify a bech32 or bech32m string — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Dev & Code 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Decode jwt x402 REST usage

Decode a JWT's header and claims — WITHOUT verifying it — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Dev & Code 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Json flatten x402 REST usage

Flatten nested JSON to leaf paths — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Other services 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Slippage calc x402 REST usage

Slippage between an expected and an actual fill — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Other services 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

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