Compare x402 REST
ALIAS of the cycle-255 SemVer API, published at the EXACT slug the router's winning row publishes. Same payload.
0.01 USDC per call
per call
Base
1,096 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.
Semver x402 REST
ALIAS of the cycle-255 SemVer API, published at the EXACT slug the router's winning row publishes. Same payload.
0.01 USDC per call
per call
Semilla x402 market census on Ba x402 REST
The whole x402 market on Base in one call: active sellers, paid calls and unique payers over 24h, 7d and 30d, USDC volume, how many payTos are resolved, and how much activity was discarded as outliers.
0.01 USDC per call
per call
Semilla x402 activity time serie x402 REST
Time series of x402 activity on Base: calls, raw USDC volume and active sellers per hour, 6 hours or day for the whole market since May 2026, or daily x402-only paid calls, payers and volume for one seller host.
0.005 USDC per call
per call
Scavenger Security Labs x402 REST
Structured JSON quickstart reference with verified relay endpoints, EIP-712/BIP-322 signing parameters, and on-chain reference transactions for $0-gas Base & Stacks ERC-8004 registration.
0.02 USDC per call
per call
ChainRead x402 REST
Current gas price and fee suggestion on Base or Ethereum: base fee, priority fee (low/standard/fast), max fee to set, and what an ETH transfer, ERC-20 transfer and DEX swap cost right now in gwei, ETH and USD (Chainlink...
0.001 USDC per call
per call
ScorpTech Recon x402 REST
Live gas tracker across Ethereum, Base, Arbitrum, OP Mainnet, Polygon and BNB Chain: head block age, base fee, 10th/50th/90th percentile priority fees from eth_feeHistory, suggested maxFeePerGas tiers, and estimated cost...
0.005 USDC per call
per call
ArgonautWorks Base Network Pulse x402 REST
Current Base mainnet block consensus, EIP-1559 fees, ETH/USD reference price, and deepest WETH-stablecoin DEX pool telemetry.
0.009 USDC per call
per call
Scavenger Security Labs x402 REST
Structured JSON quickstart reference with verified relay endpoints, EIP-712/BIP-322 signing parameters, and on-chain reference transactions for $0-gas Base & Stacks ERC-8004 registration.
0.02 USDC per call
per call
Scavenger Security Labs x402 REST
Structured JSON quickstart reference with verified relay endpoints, EIP-712/BIP-322 signing parameters, and on-chain reference transactions for $0-gas Base & Stacks ERC-8004 registration.
0.02 USDC per call
per call
Scavenger Security Labs x402 REST
Structured JSON quickstart reference with verified relay endpoints, EIP-712/BIP-322 signing parameters, and on-chain reference transactions for $0-gas Base & Stacks ERC-8004 registration.
0.02 USDC per call
per call
Beggar Bot x402 REST
Live x402 seller health check: fetches /.well-known/x402(.json) and the unpaid 402 challenge; reports reachable, TLS, schema OK, network, asset, payTo, price, latency. SSRF-safe, no chain reads.
0.02 USDC per call
per call
Semilla Base USDC payment check x402 REST
Checks one Base transaction on-chain and returns a replay-resistant receipt: chain, token, tx hash, log index, block, confirmations and every USDC transfer. With to and amount it says whether the payment matched; with in...
0.005 USDC per call
per call
Semilla Top x402 sellers on Base x402 REST
The x402 sellers on Base with most paid calls in a window (1h, 8h, 24h, 7d or 30d): payments, unique payers and USDC volume, from the AgentsMap index.
0.005 USDC per call
per call
Semilla x402 seller check x402 REST
Before paying an x402 service: real paid activity of its host or payTo (24h, 7d, 30d, unique payers, volume, first and last payment), who buys (repeat buyers, payments per buyer, share of the top buyer, new and returning...
0.01 USDC per call
per call
Base block explorer search x402 REST
Base block explorer search: look up a Base block by number or hash and get timestamp, tx count, gas used/limit, base fee and explorer link; no input gets the latest block
0.002 USDC per call
per call
Base gas price history x402 REST
Base gas price history: base fee, gas used/limit, utilization and transaction counts for the last N Base blocks, plus average/min/max, trend and suggested max fee
0.002 USDC per call
per call
Canary x402 REST
Cheapest deterministic x402 settlement test endpoint for Base and Solana wallets: proves wallet signing, facilitator settlement and delivery receipts end to end. POST any JSON object up to 8 KB or GET arbitrary query par...
0.0001 USDC per call
per call
Token price by contract x402 REST
Get a token price by contract address or mint on Base, Ethereum or Solana: DexScreener price, liquidity, volume and pair info
0.001 USDC per call
per call
payment-reconcile x402 REST
Verify a Base USDC transaction against an invoice
0.005 USDC per call
per call
Block height - Base & Ethereum x402 REST
Get the latest block number (block height), block hash and timestamp on Base or Ethereum via public JSON-RPC. $0.001 per call.
0.001 USDC per call
per call
Logo x402 REST
Brand logo API - the logo, favicon, brand colours and company profile for any domain, from Microlink, Clearbit and three favicon providers. KEYLESS, no account. ALIAS PATH of /api/logo. via x402
0 USDC per call
per call
Company Card x402 REST
Brand logo API - the logo, favicon, brand colours and company profile for any domain, from Microlink, Clearbit and three favicon providers. KEYLESS, no account. ALIAS PATH of /api/logo. via x402
0 USDC per call
per call
Brand Logo x402 REST
Brand logo API - the logo, favicon, brand colours and company profile for any domain, from Microlink, Clearbit and three favicon providers. KEYLESS, no account. ALIAS PATH of /api/logo. via x402
0 USDC per call
per call