{"uid":"cap_f8sIdK95EznTXsiJaoMMD","slug":"devx-agent-tools-payment-request-generator-eip-681-bip21-solana-pay-b8405fe9","name":"DevX Agent Tools – Payment Request Generator (EIP-681/BIP21/Solana Pay)","description":"Pay-per-call utilities for AI agents, no API key or signup: read any web page as clean Markdown ($0.002), link/SEO metadata ($0.001), domain DNS + SPF/DMARC email-security audit ($0.003), ERC-20 token safety pre-check ($0.005), crypto address validation, on-chain payment verification, EIP-681/BIP21/Solana Pay payment requests with QR, multichain USDC balances ($0.01). x402 v2, USDC on Base. Invalid input / upstream failure is never charged.","url":"https://devx-x402-tools.nextill-pos.workers.dev/v1/payment/request?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["to","amount"],"properties":{"to":{"type":"string"},"chain":{"type":"string"},"label":{"type":"string"},"token":{"type":"string"},"amount":{"type":"string"},"message":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"uri":"ethereum:0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913@8453/transfer?address=0xe30c...&uint256=25000000","qr_svg":"<svg ...>","standard":"EIP-681"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_gCyj4PvxIX5NACxV-AUE_","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Generates a standards-compliant crypto payment request URI (EIP-681, BIP21, or Solana Pay) with an accompanying QR code SVG for a given recipient address, token, amount, and chain.","exampleAgentPrompt":"Can you generate a USDC payment request QR code for 25 USDC on Base to my address 0xe30c...abcd, with the label 'Invoice #42'?","exampleUseCases":[{"title":"Crypto invoice QR for customers","prompt":"Generate a payment request QR code for 50 USDC on Base to address 0xe30cABCD1234..., labeled 'Order #1001' so I can display it at checkout."},{"title":"Solana Pay request for a tip jar","prompt":"Create a Solana Pay payment request URI and QR code asking for 5 USDC, sending it to my Solana address ABC123..., with the message 'Thanks for your support!'"},{"title":"EIP-681 deeplink for a dApp","prompt":"I need an EIP-681 payment URI for 10 USDC on Base to wallet 0xDEAD...BEEF so I can embed it as a deeplink button in my web app — can you generate that with a QR code too?"}],"resultDescription":"Returns a JSON object containing: a standards-compliant payment request URI (e.g. EIP-681 ethereum: URI, BIP21 bitcoin: URI, or Solana Pay URI), an SVG QR code encoding that URI for display or printing, and a string identifying which payment standard was used.","failureModes":["Invalid or malformed recipient address returns an error and is not charged","Unsupported chain or token combination returns an error","Missing required query parameters (to, amount) results in a 4xx error","Upstream generation failure returns an error without charging","Amount not parseable as a valid numeric value triggers validation error"],"whenToPreferThis":"Use this endpoint when you need to generate a human-scannable or machine-readable crypto payment request in a standard URI format (EIP-681, BIP21, or Solana Pay) complete with a ready-to-render SVG QR code — especially in agent workflows, invoicing, or checkout flows where no API key or pre-registration is possible and pay-per-call via x402/USDC is acceptable.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T07:02:00.815Z","isFirstParty":false,"canonicalSlug":"devx-agent-tools-payment-request-generator-eip-681-bip21-solana-pay-b8405fe9"}