Task

Blockchain

278 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.

DDG Agent-Payable Services x402 REST usage

Automated website audit for agents evaluating local-business opportunities. Intro price lowered for settlement testing.

agents.daedalusdevelopmentgroup.com Crypto & Payments 5 calls / 30d checked 2026-11-01

0.01 USDC per call per call

ChainAnalyzer x402 REST usage

Cheap connectivity-check endpoint. Verifies the full x402 settlement path (signature -> CDP facilitator -> on-chain transferWithAuthorization) for $0.01 so AI agents can validate wallet + network + facilitator wiring bef...

chain-analyzer.com Crypto & Payments 5 calls / 30d checked 2026-11-01

0.01 USDC per call per call

IOTA Notarize Proof of Existence x402 REST usage

Proof of existence on the IOTA mainnet: send text, a SHA-256 hash or a URL and get a tamper-proof timestamp. We store only the SHA-256 (never your content) in a locked notarization of the official IOTA Notarization packa...

agentsvc.io Media & Creative 4 calls / 30d checked 2026-11-01

0.01 USDC per call per call

x402 Gas Price Oracle x402 REST usage

Current gas price and EIP-1559 fee estimate for a chain (base, ethereum, polygon, arbitrum, optimism) Independently monitored by x402-list.com: 100% uptime since Oct 27, 2026, 14/14 x402 compliance checks (as of Oct 31,...

agentx402pay.com Crypto & Payments 4 calls / 30d checked 2026-11-01

0.01 USDC per call per call

x402 Wallet Balance Lookup x402 REST usage

Native and (optional) ERC-20 token balance for a wallet address across major EVM chains (base, ethereum, polygon, arbitrum, optimism) Independently monitored by x402-list.com: 100% uptime since Oct 27, 2026, 14/14 x402 c...

agentx402pay.com Crypto & Payments 4 calls / 30d checked 2026-11-01

0.01 USDC per call per call

x402 Multi-Chain RPC x402 REST usage

Safelisted read-only JSON-RPC proxy across major EVM chains (base, ethereum, polygon, arbitrum, optimism) — eth_call, eth_getBalance, eth_getTransactionReceipt, eth_getBlockByNumber, and more. Independently monitored by...

agentx402pay.com Crypto & Payments 4 calls / 30d checked 2026-11-01

0.01 USDC per call per call

fee_estimate x402 REST usage

Current network fee conditions -- gas price (ETH/Base/Arbitrum/Optimism/Polygon), sat/vB fee tiers (Bitcoin), or recent prioritization fees (Solana) -- useful for an agent about to construct a transaction itself.

chainsscope.duckdns.org Crypto & Payments 4 calls / 30d checked 2026-11-01

0.01 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

Toolsmith x402 REST usage

Foreign exchange reference rates from the European Central Bank. Base currency plus optional symbols filter. Updated daily on ECB schedule. JSON response. $0.002 USDC per call, pay via x402, no API key.

toolcall.click Crypto & Payments 15 calls / 30d checked 2026-11-01

0.002 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 2026-11-01

0.01 USDC per call per call

Saylor Innovations Bitcoin Netwo x402 REST usage

Bitcoin network status - block height and fee estimates in sat/vB from next block to 1 day

saylorinnovations.com Crypto & Payments 2 calls / 30d checked 2026-11-01

0.01 USDC per call per call

Blockchain Governance Guide x402 REST usage

Blockchain IQ Dispatch, parameter-free: who's actually in charge? A field guide to the six governance models actually in use across crypto, what each optimizes for, where each has broken, and which chains use which. Gove...

www.blockchainiq.co Crypto & Payments 1 calls / 30d checked 2026-11-01

0.02 USDC per call per call

Sui Transaction Lookup x402 REST usage

Sui mainnet transaction by digest in plain JSON: status, time, checkpoint, sender, Move calls, gas fee in SUI, balance changes per address with coin symbols, created and changed objects, events.

agentsvc.io Crypto & Payments 10 calls / 30d checked 2026-11-01

0.002 USDC per call per call

x402 Wallet Balance Lookup x402 REST usage

Native and (optional) ERC-20 token balance for a wallet address across major EVM chains (base, ethereum, polygon, arbitrum, optimism)

x402tap.com Crypto & Payments 2 calls / 30d checked 2026-11-01

0.01 USDC per call per call

x402 Gas Price Oracle x402 REST usage

Current gas price and EIP-1559 fee estimate for a chain (base, ethereum, polygon, arbitrum, optimism)

x402tap.com Crypto & Payments 2 calls / 30d checked 2026-11-01

0.01 USDC per call per call

Block number, Arbitrum One x402 REST usage

Block number, Arbitrum One. Latest block number and block details on Arbitrum One, or any block by decimal number: hash, timestamp, transaction count, gas used and limit, base fee in gwei and producer. Use for timestamps...