MARKET MONITOR / CATALOGUE Services 139,252 MCP listed 41,906 x402 97,451 Rails Base / Solana / Polygon / Arbitrum Imported 2026-11-03 · 3 sources
Task

Erc20

213 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.

OP Mainnet Onchain Data x402 REST usage

Whale and large-trade tracker for an ERC-20 on OP Mainnet: every buy and sell in the last N minutes on the token's deepest WETH/USDC pools (Uniswap v3 or Velodrome), with USD size, side, wallet and transaction for the la...

onchaincheck.dev Crypto & Payments 2 calls / 30d checked 2026-11-02
0.02 USDC per call per call

Gas price x402 REST usage

Gas price in the Roundhouse canonical contract: CAIP-2 chain to current base_fee_gwei and as_of. Recurring fee-state primitive for transaction timing and autonomous execution.

x402-gateway-production-1f21.up.railway.app Crypto & Payments 38 calls / 30d checked 2026-11-01
0.001 USDC per call per call

USDC balance x402 REST usage

Read the USDC balance of any address on Base, Polygon, Arbitrum, Optimism, Ethereum, Monad, Celo, Avalanche, Sei, or Arc. Read-only on-chain call. The minimal single-token read for payment flows - for EVERY token a walle...

agent402.tools Crypto & Payments 12 calls / 30d checked 2026-11-03
0.003 USDC per call per call

Ethereum ERC-20 Total Supply x402 REST usage

Token Supply Lookup: total supply of any ERC-20 on Ethereum mainnet. Total supply of an ERC-20 token contract on Ethereum via totalSupply given token address.

api.arysphere.com Crypto & Payments 12 calls / 30d checked 2026-10-25
0.003 USDC per call per call

Aether x402 REST usage

Wallet balance on Base: the native ETH balance of any address, read live from the chain. Input: address

aether-x402.vercel.app Crypto & Payments 34 calls / 30d checked 2026-11-03
0.001 USDC per call per call

Wallet Balance | Blackwood State x402 REST usage

Use when you need a wallet balance, token balances or the ERC20 balance of an address on Base, read live from the chain. Do not use for ethereum mainnet or other chains, NFTs, transaction history or USD values. Returns J...

x402-gateway.blackwoodstate8.workers.dev Crypto & Payments 10 calls / 30d checked 2026-11-03
0.003 USDC per call per call

Wren Token Facts x402 REST usage

Token contract facts for agents on Base. Use when your agent is about to approve, receive or send an ERC-20: send address and get code size, EIP-7702 delegation, name, symbol, decimals, supply, proxy and upgrade admin, o...

wren-presign-check.wrenonbase.workers.dev Data & Finance 3 calls / 30d checked 2026-11-02
0.01 USDC per call per call

Ethereum ERC-20 Balance x402 REST usage

Token Balance Check: ERC-20 balance of any wallet address on Ethereum mainnet. Ethereum mainnet ERC-20 balanceOf. Takes query parameters token (ERC-20 contract, 0x + 40 hex) and address (holder, 0x + 40 hex). Returns the...

api.arysphere.com Crypto & Payments 15 calls / 30d checked 2026-10-25
0.002 USDC per call per call

Wallet token transfers x402 REST usage

Token and native transfer history for any EVM address across major chains: direction, counterparty, asset, exact decimal value, block and transaction hash, filterable by category and block range with a cursor for paging....

agent402.tools Crypto & Payments 9 calls / 30d checked 2026-11-02
0.003 USDC per call per call

Base Token Contract Facts x402 REST usage

Use when an agent needs raw facts about a Base ERC-20 contract, not a verdict: name, symbol, decimals, totalSupply, EIP-1967 proxy status, owner() and mint/pause/blacklist selectors in bytecode. Facts only, no ratings. $...

api.facts402.com Crypto & Payments 2 calls / 30d checked 2026-11-03
0.01 USDC per call per call

Token supply, total supply x402 REST usage

Token supply, total supply. Total supply of any ERC-20 token on Ethereum, Base, Arbitrum, Optimism or Polygon, read live from the contract: raw and decimal-adjusted supply, decimals, name and symbol. Give a 0x address or...

agent-data-tools.revmesh2074.workers.dev Crypto & Payments 2 calls / 30d checked 2026-11-02
0.01 USDC per call per call

Base ERC-20 token facts x402 REST usage

Base only (other chains: <chain>_token_info). Live on-chain facts for an ERC-20 token on Base: name, symbol, decimals, total supply, owner and whether ownership is renounced, paused state, proxy detection (EIP-1967, mini...

agent-data-tools.revmesh2074.workers.dev Data & Finance 2 calls / 30d checked 2026-11-02
0.01 USDC per call per call

wallet-token-transfers x402 REST usage

Recent ERC-20 transfers in and out of a wallet with token, amount, USD value, counterparty, tx and method, plus in/out summary. Default chain Base; prefix another: ethereum:, arbitrum:, optimism:, polygon:. $0.02 per cal...

chain.intel.rallylive.ca Crypto & Payments 1 calls / 30d checked 2026-10-31
0.02 USDC per call per call

Token Info x402 REST usage

Token info: give an ERC-20 or SPL token address on Base, Ethereum or Solana, get its name, symbol, decimals and total supply, plus mint and freeze authority on Solana.

chain.tollkit.dev Crypto & Payments 10 calls / 30d checked 2026-11-03
0.002 USDC per call per call

Ethereum ERC-20 Allowance x402 REST usage

Allowance Check: ERC-20 approval a wallet granted a spender on Ethereum mainnet. Ethereum mainnet ERC-20 allowance. Takes query parameters token (ERC-20 contract, 0x + 40 hex), owner (0x + 40 hex) and spender (0x + 40 he...

api.arysphere.com Crypto & Payments 10 calls / 30d checked 2026-10-25
0.002 USDC per call per call

Arbitrum One Onchain Data x402 REST usage

Who is this Arbitrum One address? Wallet age (first transfer), first funder, contract or EOA, ETH balance and nonce, the latest transfers in and out (native, ERC-20, NFTs), top counterparties by count, and recent large t...

ca-tax-api-mainnet.lxtap.workers.dev Crypto & Payments 2 calls / 30d checked 2026-11-02
0.01 USDC per call per call

Base Onchain Data x402 REST usage

Who is this Base address? Wallet age (first transfer), first funder, contract or EOA, ETH balance and nonce, the latest transfers in and out (native, ERC-20, NFTs), top counterparties by count, and recent large transfers...

ca-tax-api-mainnet.lxtap.workers.dev Crypto & Payments 2 calls / 30d checked 2026-11-02
0.01 USDC per call per call

Ethereum Onchain Data x402 REST usage

Who is this Ethereum address? Wallet age (first transfer), first funder, contract or EOA, ETH balance and nonce, the latest transfers in and out (native, ERC-20, NFTs), top counterparties by count, and recent large trans...

ca-tax-api-mainnet.lxtap.workers.dev Crypto & Payments 2 calls / 30d checked 2026-11-02
0.01 USDC per call per call

OP Mainnet Onchain Data x402 REST usage

Who is this OP Mainnet address? Wallet age (first transfer), first funder, contract or EOA, ETH balance and nonce, the latest transfers in and out (native, ERC-20, NFTs), top counterparties by count, and recent large tra...

ca-tax-api-mainnet.lxtap.workers.dev Crypto & Payments 2 calls / 30d checked 2026-11-02
0.01 USDC per call per call

Polygon PoS Onchain Data x402 REST usage

Who is this Polygon PoS address? Wallet age (first transfer), first funder, contract or EOA, POL balance and nonce, the latest transfers in and out (native, ERC-20, NFTs), top counterparties by count, and recent large tr...

ca-tax-api-mainnet.lxtap.workers.dev Crypto & Payments 2 calls / 30d checked 2026-11-02
0.01 USDC per call per call

ERC-20 allowance (owner to x402 REST usage

How much of an ERC-20 token a spender contract is approved to move from an owner wallet - the approval check an agent runs before a swap, a bridge, or an x402 transferWithAuthorization flow. Returns the allowance as an e...

agent402.tools Crypto & Payments 10 calls / 30d checked 2026-11-03
0.002 USDC per call per call

Token transfers, Base x402 REST usage

Token transfers, Base. List a wallet's recent transfers of one ERC-20 token (default USDC) on Base, in and out, over the last N blocks (1-2,000, default 1,000): direction, counterparty, amount and transaction, newest fir...

agent-data-tools.revmesh2074.workers.dev Crypto & Payments 6 calls / 30d checked 2026-11-02
0.003 USDC per call per call

Token balances (named contracts) x402 REST usage

ERC-20 balances of one wallet for a NAMED list of token contracts (1-20) - the targeted complement to the full-portfolio wallet-balance tool. One balance read for the whole list plus symbol/decimals per contract (cached...

agent402.tools Crypto & Payments 9 calls / 30d checked 2026-11-02
0.002 USDC per call per call

Wallet balance (native + ERC-20) x402 REST usage

Look up the native coin balance (ETH/MATIC) plus every ERC-20 holding for a wallet address on Ethereum, Base, Polygon, Arbitrum, or Optimism. Returns clean decimal balances (already scaled by token decimals) plus symbol...

agent402.tools Crypto & Payments 9 calls / 30d checked 2026-11-02
0.002 USDC per call per call

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