Route: ping

Say what you need in plain words. You get back the paid API that buyers actually pay for and that answers right now. It comes with the exact request to send and that seller's payment terms, read seconds ago, so you can pay with your first request. Free: no key, no account.

The answer

X Pay

X Pay: Health check ping

GET https://www.api-xpay.com/x402/ping · 0.005 USD · base

256 different buyers paid this exact route 7148 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-25; answered a valid x402 402 to our check 1 s before this answer, in 312 ms

Payment terms (sign and send with the first request)

[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "amount": "5000",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "payTo": "0x589a2314a2E05F45e40C4823Da3Ba58D421dB3d8",
  "maxTimeoutSeconds": 60,
  "resource": "https://www.api-xpay.com/x402/ping",
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Alternative 1

402rates.com

402rates.com: Payment integration check for 0.001 USDC; no external data lookup. Returns t

GET https://api.402rates.com/v1/ping · 0.001 USD · base

29 different buyers paid this exact route 34 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-25; answered a valid x402 402 to our check 1 s before this answer, in 544 ms

Payment terms (sign and send with the first request)

[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "amount": "1000",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "payTo": "0xf567Cfe0FDb87A1D6Ca330e3f30f0D3DA0F7cb98",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 },
 {
  "scheme": "exact",
  "network": "eip155:137",
  "amount": "1000",
  "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
  "payTo": "0xf567Cfe0FDb87A1D6Ca330e3f30f0D3DA0F7cb98",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 },
 {
  "scheme": "exact",
  "network": "eip155:42161",
  "amount": "1000",
  "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
  "payTo": "0xf567Cfe0FDb87A1D6Ca330e3f30f0D3DA0F7cb98",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Alternative 2

x402-factory

x402-factory: Cheapest endpoint: liveness plus x402 payment pipeline check — Returns ok wi

GET https://x402-factory.com/v1/ping · 0.001 USD · base

11 different buyers paid this exact route 57 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-25; answered a valid x402 402 to our check 1 s before this answer, in 131 ms

Payment terms (sign and send with the first request)

[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "amount": "1000",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "payTo": "0xCc42Ed39a06b6cF3f484307eF76B88Bf56Fb305f",
  "maxTimeoutSeconds": 120,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Alternative 3

x402.sniperx.fun

Health check endpoint for x402 payment flow testing

GET https://x402.sniperx.fun/api/v1/ping · 0.001 USD · solana

7 different buyers paid this exact route 175 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-25; answered a valid 402 at the census probe (2026-10-22)

Payment terms (sign and send with the first request)

[
 {
  "scheme": "exact",
  "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
  "amount": "1000",
  "payTo": "Bd2xS189uhhnxUeBeVF3JFXrg8zQgrvqZtpqh8hgkCEQ",
  "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
  "maxTimeoutSeconds": 300,
  "extra": {}
 }
]

census record · seller

Alternative 4

Problocks

Problocks: Verify payment connectivity with USDC on Base. Returns a JSON pong and UTC time

GET https://x402.problocks.io/paid/ping · 0.001 USD · base

12 different buyers paid this exact route 14 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-22; answered a valid 402 at the census probe (2026-10-22)

Payment terms (sign and send with the first request)

[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "amount": "1000",
  "payTo": "0x892d8D9e7f3702eAd715BCEabA45141B59937239",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "maxTimeoutSeconds": 60,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Only routes that answered a valid x402 402 at our census probe; the top three are checked again at answer time and one that answers goes first. Order: how well the route's own description matches your words, then distinct buyers of that exact route in 30 days and its calls (Coinbase CDP catalogue), paid in the last 7 days, input schema published, then lower price. Paid placement never changes this order; it shows only under sponsored.

Sponsored (paid placement, not ranked): Foundations Elements

For agents

GET https://bazaar.agentexchange.work/route.json?need=bitcoin%20price or POST https://bazaar.agentexchange.work/route {"need":"..."}, or the MCP tool route at https://bazaar.agentexchange.work/mcp. Optional filters: max_price_usd, network.

What buyers pay for most (30 days)

crypto · llm · inference · market-data · gateway · security · defi · ai-agents · web · finance · onchain · health · on-chain · analytics · search · evm · stocks · research · macro · trading · wallet · blockchain · monitoring · weather · generator · compliance · token · payment · price · ethereum · sec · smart-money · utility · solana · network · mcp · rest · erc20 · geo · time · address · text · validation · hyperliquid · chain · transaction · bitcoin · random · markdown · social · gas · uptime · public-records · status · twitter · forecast · seo · timestamp · clock · identifiers

All needs