MARKET MONITOR / CATALOGUE Services 137,307 MCP listed 41,666 x402 95,741 Rails Base / Solana / Polygon / Arbitrum Imported 2026-11-02 · 3 sources
Task

Abi

42 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.

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

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

Storage slot mapping x402 REST usage

Compute the storage slot of a Solidity mapping entry — Genesis402 / UnyKorn Operator Network

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

Abi function selector x402 REST usage

Function selector from a Solidity signature — Genesis402 / UnyKorn Operator Network

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

Eth namehash x402 REST usage

ENS namehash and labelhash for a name — Genesis402 / UnyKorn Operator Network

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

Eth units x402 REST usage

Convert between wei, gwei, ether and token units — Genesis402 / UnyKorn Operator Network

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

Chain info x402 REST usage

Reference data for a supported EVM chain — Genesis402 / UnyKorn Operator Network

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

Eth checksum address x402 REST usage

EIP-55 checksum an Ethereum address, and check one — Genesis402 / UnyKorn Operator Network

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

crypto-abi x402 REST usage

ABI-encode a function call (selector + args) or encode/decode arbitrary ABI types — build and parse EVM calldata correctly.

api.agentstools.dev Dev & Code 1 calls / 30d checked 2026-11-02
0.003 USDC per call per call

Swift Bot Labs Toolbox x402 REST

Parse and classify an IPv4/IPv6 address (private, loopback, CGNAT, documentation, ...). Canonical and expanded forms, integer and hex values, version, scope per the IANA special-purpose registries (private, loopback, lin...

x402-toolbox-test.swiftbotlab.workers.dev Geo & Maps checked 2026-10-29
no price published

Verified contract ABI (Sourcify) x402 REST

Fetch the verified ABI for a contract address from Sourcify, plus a ready-to-use list of human-readable function signatures with their 4-byte selectors. Covers 8 EVM mainnets. Unverified contracts return a structured {ve...

agent402.tools Dev & Code checked 2026-10-29
0.003 USDC per call per call

evm-contract-source x402 REST

Fetch a verified smart-contract's full source, ABI, compiler settings and NatSpec docs for an EVM address, and automatically resolve a proxy to its implementation so the response also carries the implementation ABI. One...

payai.agentstools.dev Dev & Code checked 2026-10-29
0.02 USDC per call per call

crypto-abi x402 REST

ABI-encode a function call (selector + args) or encode/decode arbitrary ABI types — build and parse EVM calldata correctly.

payai.agentstools.dev Dev & Code checked 2026-10-29
0.003 USDC per call per call

txsafety-raw x402 REST

Pre-sign safety verdict for a raw EVM transaction. Decodes the calldata against a known-signature registry, shows known-pattern effects (approval delta, transfer target), dry-runs eth_call for revert, checks scam-blockli...

payai.agentstools.dev Security checked 2026-10-29
0.02 USDC per call per call

evm-contract-abi x402 REST

Fetch just the ABI of a verified EVM contract, resolving a proxy to its implementation ABI as well. A cheap slice for when you only need the interface to encode calls or decode data, not the full source. Unverified contr...

payai.agentstools.dev Dev & Code checked 2026-10-29
0.008 USDC per call per call

Agent Extraction API x402 REST

Base or Ethereum contract address -> ABI and function list: Sourcify verification (exact/partial match), contract name, compiler, ABI, function selectors + signatures, event topics; proxies (EIP-1967, ZeppelinOS, others...

freetier-agent-api.pages.dev Crypto & Payments checked 2026-10-29
0.002 USDC per call per call

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