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Payments & checkout
1,590 listings from 846 providers, 814 answering · counted
Filed by addrbook from the words in each listing, so a heading says what a listing claims to be for.
Showing 1–25, one row per provider, those answering first · names and descriptions as their source publishes them
- Clash of Coins Game Shopx402.clashofcoins.comAgentic checkout for Clash of CoinsLivechecked Evidence 2/4x402x402 Bazaar313 payers
- X Paywww.api-xpay.comPayment quote with amount, asset, and merchant walletLivechecked Evidence 2/4x402x402 Bazaar208 payers
- Rate a call you paid foragent402.toolsTell this server whether a call you paid for delivered what it promised. Bound to the receipt: give it the settlement transaction from that call's PAYMENT-RESPONSE (or Payment-Receipt) header and a verdict of "good" or "bad", and only the wallet the ledger records as having paid for that exact call can write it - so a rating here is always a real customer about a real purchase. One verdict per settlement transaction (sending another replaces yours, it never stacks).Livechecked Evidence 2/4x402x402 Bazaar1 payer10 more from agent402.tools
- Oblique Marketsapi.oblique.marketsUse when an agent needs a trusted UTC timestamp or the smallest end-to-end test of its x402 payment client. Returns Current server time as ISO 8601 and Unix epoch milliseconds, returned only after a real settlement. $0.01.Livechecked Evidence 2/4x402x402 Bazaar45 payers1 more from oblique.markets
- Bitrefillapi.bitrefill.comSearch 10,000+ gift card & voucher brands across 180+ countries by name and country. Pay in USDC via x402, no account.Livechecked Evidence 2/4x402x402 Bazaar44 payers8 more from bitrefill.com
- api.loyalspark.online/x402-gateway/mcp-tools/use_voucherapi.loyalspark.onlineLoyalty rewards: Mark an active voucher as used at checkout (merchant scans code or voucher id). Onchain loyalty on Base: brands launch rewards in minutes, customers earn with every purchase, AI agents automate the rest via REST and MCP. Send x-api-key: lsk_... (or Authorization: Bearer lsk_...) with the payment; without a live key you are not charged.Livechecked Evidence 2/4x402x402 Bazaar40 payers5 more from loyalspark.online
- X1 payment verificationapexfaucet.xyzDid that X1 payment actually land? Pass ?sig=<signature> and optionally ?to=<wallet>, ?mint=<token> and ?expect=0.5 to get the payer, how much reached that w...Livechecked Evidence 2/4x402x402 Bazaar5 payers7 more from apexfaucet.xyz
- x402 Heartbeatx402tap.comHeartbeat endpoint billed via a batch-settlement payment channelLivechecked Evidence 2/4x402x402 Bazaar11 payers
- Problocksx402.problocks.ioVerify payment connectivity with USDC on Base. Returns a JSON pong and UTC timestamp after settlement.Livechecked Evidence 2/4x402x402 Bazaar10 payers
- GW8 Signal APImicro-saas-agent.onrender.com[Payment rails: fee + speed comparison] Cheapest and fastest payment rail right now for a USD amount (?amount=100): Base USDC (live gas x ETH/USD, ~2s), XRPL RLUSD/XRP (live fee x XRP/USD, ~3-5s), Tempo and Circle Arc (live gas, USD fees, ~1s), card (static 2.9% + $0.30, days). Fee USD/%, settlement time, sources, agent protocols per rail, recommended pick. Dead sources marked unavailable. 60s cache. $0.002 USDC. Signal only.Livechecked Evidence 2/4x402x402 Bazaar10 payers2 more from micro-saas-agent.onrender.com
- x402 Checkupcheckup.kagurazaka.devCheckup for x402 buyer clients. Pay once and get a field-by-field diagnosis of the payment your client signed (amount, recipient, validity window, clock offset, nonce, EIP-712 signature) and of the request that arrived, plus the facilitator's verify and settle results. Base mainnet payments get the full diagnosis; Base Sepolia payments get a preview with the status of each check only.Livechecked Evidence 1/4x402x402 Bazaar9 payers
- Textokittienda.textokit.storex402 payment test and ping: one call with no required parameters returns server time (ISO 8601 and Unix ms), a request id, the seller payTo, chain id and an echo of your optional text, only after a real settlement. Use this when an agent needs to prove its payment flow works, measure round-trip latency or run a cheap scheduled canary against a live seller. No upstream, no model inference; paid round trip 1 to 2 s. Free sample at /api/x402-ping/sample.Livechecked Evidence 1/4x402x402 Bazaar9 payers
- 60SecMonitor Status APIapi.isitdownapi.comIs Stripe or another SaaS or cloud vendor down right now? Input: ?vendor=stripe (slug, name or domain). Returns status, confidence, active incidents with a summary, official status page, last-checked time and a staleness flag, read live from 60SecMonitor. $0.01 USDC on Base. Untracked vendors return 404 and aren't charged. Up to 25 vendors at once: /v1/status/batch ($0.05). Past incidents: /v1/incidents.Livechecked Evidence 1/4x402x402 Bazaar9 payers
- Losbeto Market Intelligenceapi.losbeto.xyzx402 hello-world: the cheapest live call on this node ($0.001), built for agents to smoke-test the full payment loop — 402 challenge, wallet signature, facilitator settlement, JSON delivery — against a real merchant....Livechecked Evidence 1/4x402x402 Bazaar9 payers
- api.orcatrace.dev/v1/resolvingapi.orcatrace.devPaid ($0.02 USDC via x402). Markets resolving within ?withinHours (1-72): odds, contested-vs-converged, liquidity, and order-book microstructure for the nearest expiries. Mechanical short-interval markets excluded by default (?includeNoise=1 to include). Settle-early with a guaranteed refund — if we charge you but cannot deliver, the payment is refunded.Livechecked Evidence 1/4x402x402 Bazaar8 payers
- Settledsettled.toolsPrice: $0.002 in USDC on Base. Signed check of an x402 endpoint before you pay it: who really pays it on Base (settlements and unique payers over 30 days), a fresh unpaid probe (cached ≤5 min) with status, latency and the parsed quote, payability, paying agents' reports, the seller's claim, the scout's last real purchase (settlement transaction and whether it matched the listing), a quality score and risk flags. Free up to 300 calls a day per client at /v1/free/check.Livechecked Evidence 1/4x402x402 Bazaar8 payers1 more from settled.tools
- x402 Agent Hubx402-agent-hub.x402-agent-hub.workers.devStatus of any transaction on 7 EVM chains: pending / success / reverted, confirmations, block time, from/to, value and the all-in fee (including the OP-stack L1 data fee on Base and Optimism). Use it to confirm a payment or deployment landed. You only pay for successful reads: invalid input, not-found and upstream errors cancel settlement.Livechecked Evidence 1/4x402x402 Bazaar8 payers
- Quartermaster Balance Checkquartermaster.surewhynot.appCheck ETH and USDC (or any ERC-20) balance of an address on Base — pre-flight funding checks for payments and settlement.Livechecked Evidence 1/4x402x402 Bazaar7 payers5 more from surewhynot.app
- BlockRun.AIblockrun.aiCreate a managed Python 3.11 sandbox. Two billing modes selected by 'timeout': ≤300s = flat rate (CPU $0.011, GPU varies). >300s = per-hour billing for the full requested lifetime, no refund on early terminate. Max 24h.Livechecked Evidence 1/4x402x402 Bazaar7 payers
- Business Days and Holidaysapi.stablecoingateways.comBusiness days and public holidays: check if a date is a business day, add or subtract N business days, count business days between dates, or list holidays, for 250 countries, 630 subdivisions (e.g. US-NY, GB-ENG) and 31 stock exchanges, 2025-2030. Use for payment due dates, T+N settlement, delivery estimates and SLAs. Data: python-holidays (MIT). Signed receipt.Livechecked Evidence 1/4x402x402 Bazaar7 payers
- open-pay.jp/api/paid/helloopen-pay.jpEnd-to-end smoke test for x402 clients: returns a greeting plus the settlement timestamp, so an agent can prove its payment path works before spending on real data.Livechecked Evidence 1/4x402x402 Bazaar7 payers1 more from open-pay.jp
- Toolrailtoolrail.devGenerate a QR code as PNG or SVG from any text or URL (up to 2000 chars, 64-2048 px). Pairs with the PDF endpoint for payment links and labels. Use when you need a scannable QR image for a URL, payment link or label.Livechecked Evidence 1/4x402x402 Bazaar7 payers
- Annalistapi.annalist.devOne site's agent readiness from our weekly census of 65,000 top sites: UCP and ACP agent checkout (its MCP endpoint, capabilities, payment handlers), A2A and MCP cards, a real llms.txt, robots.txt rules for 15 AI agents, x402, store and platform, Shopify store facts (ships-to countries, currency), and every change dated. A site not yet in the census is visited live. Measured by us. Signed.Livechecked Evidence 1/4x402x402 Bazaar6 payers2 more from annalist.dev
- paddock.finance/api/paddock/mcp/livenesspaddock.financeAgent payments have no chargeback. Paddock is pre-payment verification for AI agents. get_liveness reports whether a seller's domain answered at the nightly probe over the last seven days, with latency and sample counts.Livechecked Evidence 1/4x402x402 Bazaar6 payers4 more from paddock.finance
- x402-payment-testx402.agentindex.worldCheapest possible Base-mainnet x402 conformance call: settle $0.001 of USDC and receive payer identity, request echo and receipt. Built for agents testing wallets, Payment-Signature, facilitators and settlement. Try GET /x402-echo/sample.Livechecked Evidence 1/4x402x402 Bazaar6 payers