{"uid":"cap_0G-sx5zlX35NcxxlULFJg","slug":"agentshelf-tls-public-key-checker-c69b3879","name":"AgentShelf TLS Public Key Checker","description":"Call when an agent needs whether the port-443 key is RSA ≥2048 or EC ≥256 bits. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/tls-pubkey first.","url":"https://agentshelf.syntexa.ch/v1/tls-pubkey?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string","maxLength":2048,"minLength":8,"description":"Public URL whose hostname is inspected. Provide url or host. Private targets are rejected."},"host":{"type":"string","examples":["example.com"],"maxLength":253,"minLength":1,"description":"Public hostname such as example.com. The port and check are fixed by the SKU. Provide host or url."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.004","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":"$0.004/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_cOP2pQqF3E9TLvYgGJWuN","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.004","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether a host's port-443 TLS certificate uses an RSA key of at least 2048 bits or an EC key of at least 256 bits","exampleAgentPrompt":"Can you check whether api.example.com is using a strong enough TLS public key — specifically whether it's RSA 2048 bits or more, or EC 256 bits or more?","exampleUseCases":[{"title":"Security audit of partner API endpoint","prompt":"We're about to integrate with payments.partnerco.com — can you verify their TLS certificate uses at least RSA 2048-bit or EC 256-bit key strength before we go live?"},{"title":"Compliance check for internal service","prompt":"Our security policy requires all services to have TLS keys that are RSA ≥2048 or EC ≥256 bits — can you check whether internal.mycompany.com meets that requirement?"},{"title":"Investigating a weak TLS warning","prompt":"Our scanner flagged weak-tls.legacysite.org for a potentially weak TLS key — can you tell me what key type and size its port-443 certificate is actually using?"}],"resultDescription":"Returns the TLS public key type (RSA or EC), the key size in bits, and an indication of whether it meets the minimum security thresholds (RSA ≥2048 bits or EC ≥256 bits) for the queried host on port 443.","failureModes":["Host unreachable or connection refused on port 443 — connection timeout error","Invalid or non-HTTPS URL/hostname provided — validation error","Host has no TLS certificate or uses self-signed cert — may return partial or error response","Hostname does not resolve in DNS — lookup failure error","Rate limiting or payment failure for the $0.004 USDC charge — 402 payment required"],"whenToPreferThis":"Use this endpoint when you need to programmatically verify TLS public key algorithm and bit-length compliance for a specific host, particularly when auditing whether keys meet modern minimum standards (RSA ≥2048 or EC ≥256). Prefer the free sandbox endpoint POST /v1/sandbox/tls-pubkey first if available; fall back to this paid endpoint when the sandbox is unavailable or rate-limited.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T02:20:24.968Z","isFirstParty":false,"canonicalSlug":"agentshelf-tls-public-key-checker-c69b3879"}