{"uid":"cap_XZnPRZFRktqFEmNizpPdf","slug":"karma-domains-webhook-subscription-ping-3e8c7815","name":"Karma.Domains Webhook Subscription Ping","description":"Find expired domain names with high traffic and strong SEO backlinks daily. Boost your revenue by searching our database of 13,000,000+ expired domains from auctions, backorders, and dropped lists—complete with rich metrics and domain age.","url":"https://api.karma.domains/v1/webhooks/%7Bsubscription_id%7D/ping?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"1.5","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":"$1.5/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"1.5","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"1.5","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_HnjpSK8wvxF8bUk5KONqC","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"1.5","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Pings (tests) an existing webhook subscription on the Karma.Domains expired domain service to verify it is active and reachable.","exampleAgentPrompt":"Send a test ping to my Karma.Domains webhook subscription ID 'sub_abc123' to confirm it's active and receiving notifications properly.","exampleUseCases":[{"title":"Verify new webhook before going live","prompt":"I just set up a webhook subscription on Karma.Domains with ID 'sub_xyz789' — can you ping it to make sure it's reachable and working before I rely on it for expired domain alerts?"},{"title":"Diagnose missed domain alerts","prompt":"I haven't been getting any expired domain notifications from Karma.Domains — can you send a test ping to my webhook subscription 'sub_abc456' to see if it's still active?"},{"title":"Post-deployment webhook health check","prompt":"We just deployed a new server — ping our Karma.Domains webhook subscription 'sub_def999' to confirm the new endpoint is responding correctly to subscription events."}],"resultDescription":"Returns a confirmation that the ping was sent to the specified webhook subscription, indicating whether the subscription endpoint is reachable and responding. Typically returns an HTTP 200 with a success status or an error if the subscription ID is invalid or the endpoint is unreachable.","failureModes":["Invalid or non-existent subscription_id returns 404","Webhook endpoint unreachable or times out returns an error status","Payment of 1.5 USDC not provided results in 402 Payment Required","Malformed subscription_id path parameter causes 400 Bad Request"],"whenToPreferThis":"Use this endpoint when you need to verify that a specific Karma.Domains webhook subscription is correctly configured and the target endpoint is reachable — especially after initial setup, server migration, or when troubleshooting missing domain alert notifications. This is a targeted health-check, not a search or data-retrieval operation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-16T12:37:06.908Z","isFirstParty":false,"canonicalSlug":"karma-domains-webhook-subscription-ping-3e8c7815"}