Task

Chain

26 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.

X Pay x402 REST usage

Payment quote with amount, asset, and merchant wallet

www.api-xpay.com Crypto & Payments 7,261 calls / 30d checked 2026-10-31

0.005 USDC per call per call

IBAN Validator x402 REST usage

IBAN validator: validate an IBAN's length for its country, permitted character classes per field, and the ISO 7064 mod-97-10 check digits. Returns the verdict with a specific failure reason, the electronic and print form...

api.duoleads.com Dev & Code 4 calls / 30d checked 2026-10-31

0.05 USDC per call per call

VAPE x402 REST usage

VAPE dex_volumes — DEX trading volume on a chain by venue, each with its logo (default Base) — real trading activity across the chain's exchanges.

vape-x402.vapex402.workers.dev Data & Finance 13 calls / 30d checked 2026-10-29

0.01 USDC per call per call

Sanctions screening - name x402 REST usage

Screen a person or company name against the OFAC SDN list. Returns exact and substring matches with the SDN entry id and type, so every hit can be checked against the published list itself. Matching is exact, substring,...

agent402.tools Data & Finance 9 calls / 30d checked 2026-10-31

0.005 USDC per call per call

DefiLlama DeFi TVL & Yields x402 REST usage

Batch historical token prices by DefiLlama — prices for many coins at many timestamps in one call (coins is a JSON map).

defillama.use.x402atlas.com Data & Finance 7 calls / 30d checked 2026-10-31

0.005 USDC per call per call

Saylor Innovations Options Chain x402 REST usage

BTC and ETH options chain for an expiry - strike, type, implied volatility, open interest and volume

saylorinnovations.com Other services 3 calls / 30d checked 2026-10-31

0.01 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 30 calls / 30d checked 2026-10-31

0.001 USDC per call per call

Sanctions screening - crypto x402 REST usage

Is this blockchain address on the OFAC SDN list? Screens any address against every Digital Currency Address OFAC publishes (Bitcoin, Ethereum, Tron, USDT, USDC, Monero, Litecoin and more). A match names the sanctioned en...

agent402.tools Crypto & Payments 11 calls / 30d checked 2026-10-31

0.002 USDC per call per call

DeFi chain TVL history x402 REST usage

Daily total value locked history for one chain or for all of DeFi, up to ten years of points, with latest, first, minimum, maximum and mean and the change over the window. Use it when an agent is charting a chain's growt...

agent402.tools Data & Finance 9 calls / 30d checked 2026-10-31

0.002 USDC per call per call

Chain info by chainId x402 REST usage

Reference data for a blockchain by its chainId: name, gas/native token, block explorers, number of public RPCs and website. Utility for multi-chain agents. Live from chainid.network (ethereum-lists, open data).

api.vextorium.com Crypto & Payments 5 calls / 30d checked 2026-10-28

0.003 USDC per call per call

Chain info snapshot x402 REST usage

One-call chain state snapshot: chain id, latest block number, and current gas price (wei + gwei) for Ethereum, Base, Polygon, Arbitrum, or Optimism. Keyless multi-endpoint failover.

agent402.tools Crypto & Payments 13 calls / 30d checked 2026-10-31

0.001 USDC per call per call

Base chain id x402 REST usage

Get the Base chain id, 8453. One call confirms the network. $0.005 USDC. Included in the hour pass. Includes a signed Base fact you can check with the published receipt key. Includes a signed Ed25519 receipt you can chec...

aizamon.com Crypto & Payments 2 calls / 30d checked 2026-10-31

0.005 USDC per call per call

Base gas price x402 REST usage

Get the Base gas price and the latest base fee, in wei and gwei. Both figures come back on the same call. $0.005 USDC. Included in the hour pass. Includes a signed Base fact you can check with the published receipt key....

aizamon.com Crypto & Payments 2 calls / 30d checked 2026-10-31

0.005 USDC per call per call

code402 Chain Data x402 REST usage

Latest Ethereum block height

verify.code402.dev Crypto & Payments 2 calls / 30d checked 2026-10-31

0.005 USDC per call per call

ManyLives Onchain x402 REST usage

Live balances of a Base wallet: native ETH and US-dollar stablecoin, plus its transaction count.

api.manylives.me Crypto & Payments 4 calls / 30d checked 2026-10-31

0.002 USDC per call per call

Citiview Agent Market x402 REST usage

Breached password check: is this password in known data breaches, and how often? Send only the SHA-1 hash (never the password); just the first 5 characters reach Have I Been Pwned (k-anonymity). Up to 50 hashes per call.

agents.citiviewgroup.com Security 3 calls / 30d checked 2026-10-28

0.002 USDC per call per call

Tanod chainpeek x402 REST usage

UTC time and latest Base block. Use when you need a clock.

tanod.dev Crypto & Payments 3 calls / 30d checked 2026-10-31

0.001 USDC per call per call

Nonce x402 REST

Chain nonce on Base (cycle 228, x402 $0.01) - the transaction count of an account, the nonce its next transaction must carry. GET ?address=<0xWALLET> OR ?block=latest|pending OR POST application/json {address}. KEYLESS p...