{"uid":"cap_cahR0ABLj0m_ec2zHEUpB","slug":"httpay-xyz-sendgrid-email-delivery-gateway-d386a675","name":"httpay.xyz SendGrid Email Delivery Gateway","description":"API Gateway: SendGrid email delivery API","url":"https://httpay.xyz/api/gateway/sendgrid/%7B*path%7D","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_HNBpiQCFfldX1aoyw6zRx","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Proxies SendGrid email delivery API calls through a pay-per-use gateway requiring micropayment via x402 protocol","exampleAgentPrompt":"Send a transactional welcome email via SendGrid to jane@example.com from noreply@myapp.com with the subject 'Welcome to MyApp!' and body 'Thanks for signing up, Jane! Your account is ready.'","exampleUseCases":null,"resultDescription":"Returns the SendGrid API response including delivery status, message ID, and any error details if the email could not be dispatched. Mirrors the standard SendGrid v3 Mail Send response format.","failureModes":["Payment not received or insufficient USDC balance — gateway returns 402 Payment Required","Invalid SendGrid API path or unsupported endpoint — returns 404 or 400","Malformed email payload (missing required fields like to/from/subject) — SendGrid returns 400 Bad Request","Recipient email address invalid or blocked — SendGrid returns 4xx error","Rate limit exceeded on underlying SendGrid account — returns 429","Gateway misconfiguration or upstream SendGrid outage — returns 502 or 503"],"whenToPreferThis":"Choose this endpoint when you need to send emails via SendGrid without provisioning your own SendGrid API key, prefer pay-per-use micropayment billing over subscription, or want to integrate email delivery into an autonomous agent workflow using the x402 payment protocol. Ideal for low-volume transactional emails or agent-driven notification systems.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:03:30.282Z","isFirstParty":false}