{"uid":"cap_X0yvUv27A6wc4xfKMmHZM","slug":"mekler-ai-api-listing-visibility-checker-1e1a9f96","name":"Mekler AI – API Listing Visibility Checker","description":"Monitor one paid API operation across x402scan, CDP Bazaar and Agentic Market. Check exact listing presence, one to three buyer queries and optional description drift. Return dated evidence, confirmed change alerts, private history and the next polling request. Partial coverage and timeouts stay unknown; no ranking or indexing guarantee.","url":"https://api.mekler.ai/v1/services/listings/check-listing-visibility?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"cursor":{"type":"string","maxLength":16000,"minLength":1},"method":{"enum":["GET","POST"],"type":"string","default":"POST"},"poll_id":{"type":"string","pattern":"^[a-zA-Z0-9_-]{16,64}$"},"queries":{"type":"array","items":{"type":"string","maxLength":160,"minLength":2},"maxItems":3,"minItems":1,"uniqueItems":true},"expected":{"type":"object","properties":{},"additionalProperties":false},"merchant":{"type":"string","pattern":"^(0x[a-fA-F0-9]{40}|[1-9A-HJ-NP-Za-km-z]{32,44})$"},"resource":{"type":"string","format":"uri","maxLength":1024},"market_slug":{"type":"string","pattern":"^[a-z0-9][a-z0-9-]{0,127}$"}}},"responseSchema":{"type":"json","example":{"cost":{"request_limit":24,"directory_attempts":6,"supplier_charge_usd":"0","infrastructure_actual_usd":null},"status":"ok","resource":"https://api.mekler.ai/v1/email/domains/check-mail-configuration","checked_at":1792155600}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_V3f_XUnPLwQrGKYs-LsM1","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Monitors whether a paid API endpoint is currently listed and discoverable across x402scan, CDP Bazaar, and Agentic Market, returning dated evidence and change alerts.","exampleAgentPrompt":"Check if my paid API at https://api.mekler.ai/v1/email/domains/check-mail-configuration is currently listed and discoverable across x402scan, Bazaar, and Agentic Market — search for it using the queries 'email domain check' and 'MX record validator' and tell me if there are any changes from last time.","exampleUseCases":[{"title":"New API launch listing audit","prompt":"I just deployed my new API at https://api.example.com/v1/sentiment and I need to know if it's showing up on x402scan, CDP Bazaar, and Agentic Market yet — run a check using the query 'sentiment analysis API' and tell me if it's listed."},{"title":"Detect marketplace listing drift","prompt":"Can you check if my service at https://api.myservice.io/v1/ocr is still listed correctly across the x402 directories? Use the queries 'OCR API' and 'image text extraction' and alert me if the description has changed from what I expect."},{"title":"Recurring poll for visibility changes","prompt":"I want to keep monitoring my API listing at https://api.mekler.ai/v1/services/listings/check-listing-visibility — use my previous poll ID abc123XYZdef456 to continue from where we left off and tell me if anything changed since the last check."}],"resultDescription":"Returns a JSON object with the listing check status ('ok' or error), the resource URL checked, the UTC timestamp of the check, directory attempt counts, a request limit indicator, and supplier/infrastructure cost data. Includes dated evidence of listing presence or absence across checked marketplaces, change alerts if drift is detected, and a cursor for the next polling request. Partial coverage and timeouts are flagged as unknown.","failureModes":["Resource URL not found in any checked directory — returns status with zero positive matches","Timeout on one or more directories — affected marketplace results marked as unknown/partial","Invalid merchant wallet address format — schema validation error before request is processed","Poll ID not recognized or expired — cursor-based continuation fails and full re-check is needed","Malformed resource URI — request rejected at input validation","Rate or request limit reached — request_limit field indicates remaining capacity"],"whenToPreferThis":"Choose this endpoint when you need to verify or continuously monitor whether a specific paid API endpoint is discoverable across x402-ecosystem marketplaces (x402scan, CDP Bazaar, Agentic Market). It is the right choice for API publishers who want evidence-backed confirmation of listing presence, description drift detection, or buyer query visibility — particularly for x402 protocol-based services. Prefer it over manual marketplace checks when you need dated, structured evidence and polling continuity via cursor.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-17T12:30:12.898Z","isFirstParty":false,"canonicalSlug":"mekler-ai-api-listing-visibility-checker-1e1a9f96"}