Route: invoice

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

Bitrefill

Bitrefill: Pay a Bitrefill invoice in USDC via x402 to buy gift cards, eSIMs & mobile top-

POST https://api.bitrefill.com/x402/invoice/pay · 1000 USD · base

23 different buyers paid this exact route 65 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 351 ms

Payment terms (sign and send with the first request)

[
 {
  "scheme": "upto",
  "network": "eip155:8453",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "amount": "1000000000",
  "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
  "maxTimeoutSeconds": 1800,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 },
 {
  "scheme": "upto",
  "network": "eip155:42161",
  "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
  "amount": "1000000000",
  "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
  "maxTimeoutSeconds": 1800,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 },
 {
  "scheme": "upto",
  "network": "eip155:42161",
  "asset": "0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9",
  "amount": "1000000000",
  "payTo": "0x480CD46E6faDe651a0437DeaddA53D5c8e7D846A",
  "maxTimeoutSeconds": 1800,
  "extra": {
   "name": "USD₮0",
   "version": "1"
  }
 }
]

census record · seller

Alternative 1

Saylor Innovations Guide Library

Saylor Innovations Guide Library: Invoice and collection evidence - delivery proof, aging,

GET https://saylorinnovations.com/api/kb/invoice-collection-evidence · 0.01 USD · base

4 different buyers paid this exact route 5 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-23; answered a valid x402 402 to our check 1 s before this answer, in 425 ms

Payment terms (sign and send with the first request)

[
 {
  "network": "eip155:8453",
  "scheme": "exact",
  "amount": "10000",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
  "maxTimeoutSeconds": 120,
  "extra": {
   "assetTransferMethod": "eip3009",
   "name": "USD Coin",
   "version": "2",
   "facilitatorOnly": true,
   "memo": "saylor:invoice-collection-eviden",
   "note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network."
  }
 },
 {
  "network": "eip155:137",
  "scheme": "exact",
  "amount": "10000",
  "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
  "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
  "maxTimeoutSeconds": 120,
  "extra": {
   "assetTransferMethod": "eip3009",
   "name": "USD Coin",
   "version": "2",
   "facilitatorOnly": true,
   "memo": "saylor:invoice-collection-eviden",
   "note": "Polygon settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network."
  }
 },
 {
  "network": "eip155:42161",
  "scheme": "exact",
  "amount": "10000",
  "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
  "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
  "maxTimeoutSeconds": 120,
  "extra": {
   "assetTransferMethod": "eip3009",
   "name": "USD Coin",
   "version": "2",
   "facilitatorOnly": true,
   "memo": "saylor:invoice-collection-eviden",
   "note": "Arbitrum settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network."
  }
 }
]

census record · seller

Alternative 2

Mart402

Mart402: Japan consumption tax: per-rate invoice rounding (one rounding per rate), qualifi

POST https://mart402.com/v1/jp-consumption-tax · 0.01 USD · base

6 different buyers paid this exact route 13 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-22; answered a valid x402 402 to our check 1 s before this answer, in 77 ms

Payment terms (sign and send with the first request)

[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "amount": "10000",
  "maxAmountRequired": "10000",
  "resource": "https://mart402.com/v1/jp-consumption-tax",
  "description": "Japan consumption tax: per-rate invoice rounding (one rounding per rate), qualified invoice (T+13) field validation, simplified taxation, 20-percent special (taxable periods that include a day 2023-10-01..2026-09-30). $0.01/call.",
  "mimeType": "application/json",
  "payTo": "0xE3244a21D0d68bFa78b7CAd8C3b8777aDFbB3188",
  "maxTimeoutSeconds": 120,
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "extra": {
   "name": "USD Coin",
   "version": "2"
  },
  "outputSchema": {
   "input": {
    "type": "http",
    "method": "POST",
    "bodyType": "json",
    "body": {
     "mode": "two_percent",
     "taxable_sales_excl_yen": 5000000,
     "taxable_period_start": "2026-01-01",
     "taxable_period_end": "2026-12-31"
    },
    "discoverable": true
   },
   "output": {
    "description": "JSON by mode: payable tax / per-rate invoice totals / qualified-invoice field check"
   }
  }
 }
]

census record · seller

Alternative 3

Invoket

Invoket: Check whether a company can receive e-invoices on the Peppol network before you s

GET https://api.invoket.com/company/peppol · 0.01 USD · base

5 different buyers paid this exact route 7 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-24; 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": "10000",
  "payTo": "0x4465825B0ac713aA2Fa07Ea29023020804A128ee",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "maxTimeoutSeconds": 60,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Alternative 4

hcrb.in

Transforms JSON invoice payloads in-RAM into schema-valid Peppol BIS Billing 3.0 UBL 2.1 X

POST https://hcrb.in/v1/modules/compliance/einvoice-transform · 0.01 USD · base

3 different buyers paid this exact route 5 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-23; 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": "10000",
  "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "maxTimeoutSeconds": 900,
  "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