SiteCheck Crypto & Finance

https://api.chainmarket-api.workers.dev/api/crypto/smart-contract-verify

● healthy model-context-protocol-mcp

174 pay-per-call crypto, DeFi, on-chain (Bitcoin, Kaspa, Bittensor) and finance data tools for AI agents, from public chains and official or public sources. Payment: x402, USDC on Base, Solana, Arc, Polygon, Arbitrum, Monad, World Chain, Optimism, Avalanche, Celo or Stellar, or RLUSD/XRP on the XRP Ledger. No signup, no API key; a failed call is not charged. Call a tool without payment to get its x402 PaymentRequired object, sign one option with your wallet and repeat the call with the PaymentPayload in params._meta["x402/payment"] (x402 MCP transport). Payment settles only when the call succeeds.

Paid verification

How it works

No sponsored paid call yet.

Pay this endpoint once from your own wallet (Base USDC, up to $1.00) and we call it and record what came back. Your wallet pays the listed recipient directly; Agent Tools never holds funds. Sponsored checks prove delivery; they do not count as demand.

Quality grade

How grading works

A 92.5 / 100

Availability 40.0 / 40

Endpoint responded (HTTP 200)

Payability 20.0 / 20

✓ Answers a real HTTP 402 challenge
✓ Publishes a /.well-known/x402 descriptor
✓ Payment address on record
✓ Settlement network declared
✓ Price declared

Demand 29.5 / 40

72 distinct payers, 7490 USDC transfers in the last 30 days

Owner verified 3.0 / 3

Operator proved control of this domain

Endpoint last checked 15 h ago. On-chain activity last read 2 h ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass.

Paid endpoints

174 resource(s) advertised by this origin. Each price below is that resource's own x402 price; the headline price is the range across them.

https://api.chainmarket-api.workers.dev/api/crypto/smart-contract-verify

https://api.chainmarket-api.workers.dev/api/crypto/honeypot-detector

https://api.chainmarket-api.workers.dev/api/crypto/dex-pool-liquidity

https://api.chainmarket-api.workers.dev/api/crypto/defillama-tvl-oracle

https://api.chainmarket-api.workers.dev/api/crypto/defillama-stablecoins

https://api.chainmarket-api.workers.dev/api/crypto/defillama-yields

https://api.chainmarket-api.workers.dev/api/crypto/whale-alert-transfers

https://api.chainmarket-api.workers.dev/api/crypto/token-holder-concentration

https://api.chainmarket-api.workers.dev/api/crypto/aave-lending-markets

https://api.chainmarket-api.workers.dev/api/crypto/compound-market-stats

https://api.chainmarket-api.workers.dev/api/crypto/nft-floor-wash-detector

https://api.chainmarket-api.workers.dev/api/crypto/cross-chain-bridge-flows

https://api.chainmarket-api.workers.dev/api/crypto/solana-token-extensions

https://api.chainmarket-api.workers.dev/api/crypto/mev-block-analytics

https://api.chainmarket-api.workers.dev/api/crypto/ethereum-gas-telemetry

https://api.chainmarket-api.workers.dev/api/crypto/token-vesting-schedule

https://api.chainmarket-api.workers.dev/api/crypto/coingecko-market-depth

https://api.chainmarket-api.workers.dev/api/crypto/coinmarketcap-listings

https://api.chainmarket-api.workers.dev/api/crypto/fear-greed-index

https://api.chainmarket-api.workers.dev/api/crypto/bitcoin-mempool-stats

https://api.chainmarket-api.workers.dev/api/crypto/bitcoin-hashrate-difficulty

https://api.chainmarket-api.workers.dev/api/crypto/ethereum-staking-rewards

https://api.chainmarket-api.workers.dev/api/crypto/solana-validator-cluster

https://api.chainmarket-api.workers.dev/api/crypto/lido-steth-peg

https://api.chainmarket-api.workers.dev/api/crypto/makerdao-vault-status

https://api.chainmarket-api.workers.dev/api/crypto/crypto-fundraising-rounds

https://api.chainmarket-api.workers.dev/api/crypto/binance-orderbook-depth

https://api.chainmarket-api.workers.dev/api/crypto/coinbase-spot-exchange

https://api.chainmarket-api.workers.dev/api/crypto/deribit-options-skew

https://api.chainmarket-api.workers.dev/api/crypto/crypto-liquidations-feed

https://api.chainmarket-api.workers.dev/api/crypto/debank-wallet-portfolio

https://api.chainmarket-api.workers.dev/api/crypto/zapper-token-balances

https://api.chainmarket-api.workers.dev/api/crypto/zerion-dna-feed

https://api.chainmarket-api.workers.dev/api/crypto/etherscan-label-cloud

https://api.chainmarket-api.workers.dev/api/crypto/solscan-account-tokens

https://api.chainmarket-api.workers.dev/api/crypto/basescan-contract-events

https://api.chainmarket-api.workers.dev/api/crypto/arbiscan-l2-rollup

https://api.chainmarket-api.workers.dev/api/crypto/optimism-superchain-tx

https://api.chainmarket-api.workers.dev/api/crypto/polygon-pos-checkpoints

https://api.chainmarket-api.workers.dev/api/crypto/chainlink-price-feeds

https://api.chainmarket-api.workers.dev/api/crypto/pyth-network-oracles

https://api.chainmarket-api.workers.dev/api/crypto/uniswap-v3-ticks

https://api.chainmarket-api.workers.dev/api/crypto/curve-gauge-weights

https://api.chainmarket-api.workers.dev/api/crypto/convex-vlcvx-voting

https://api.chainmarket-api.workers.dev/api/crypto/balancer-v2-pools

https://api.chainmarket-api.workers.dev/api/crypto/sushiswap-route-quotes

https://api.chainmarket-api.workers.dev/api/crypto/1inch-pathfinder-quotes

https://api.chainmarket-api.workers.dev/api/crypto/cowswap-batch-auctions

https://api.chainmarket-api.workers.dev/api/crypto/jupiter-solana-routing

https://api.chainmarket-api.workers.dev/api/crypto/circle-cctp-transfers

How to call

cURL · x402-fetch / x402-axios will auto-handle 402

curl -sS -i -X GET https://api.chainmarket-api.workers.dev/api/crypto/smart-contract-verify  # expect HTTP 402 Payment Required (about 0.002 USDC/call)

MCP endpoint

https://api.chainmarket-api.workers.dev/mcp?ref=agenttools

/.well-known/x402.json

https://api.chainmarket-api.workers.dev/.well-known/x402

Listed in

Directories this entry was found in.

mcp