{"id":"linuxserver-letsencrypt","name":"letsencrypt","af_score":31.2,"security_score":58.0,"reliability_score":51.2,"what_it_does":"letsencrypt (commonly refers to the Let’s Encrypt certificate authority and the tooling/ecosystem used to obtain and renew TLS certificates) enables automated issuance and renewal of X.509 certificates for domains using ACME challenges.","best_when":"You control DNS (or can satisfy HTTP-01/DNS-01 challenges) and want hands-off certificate lifecycle management.","avoid_when":"You cannot complete ACME domain validation (or cannot reach ACME endpoints) or need tightly customized certificate policies beyond typical ACME issuance.","last_evaluated":"2026-03-30T13:26:27.587270+00:00","has_mcp":false,"has_api":false,"auth_methods":["ACME account key / registration","Domain validation via HTTP-01, DNS-01, TLS-ALPN-01 challenges (as supported by tooling)"],"has_free_tier":true,"known_gotchas":["ACME operations are not a simple request/response API; they involve multi-step challenge/validation flows and timing (propagation/validation windows).","Rate limits are enforced by the CA; repeated failed attempts can lead to temporary bans/limits.","Idempotency varies by client/tooling (e.g., repeated issuance/renewal attempts may or may not be safe depending on request parameters and state).","DNS-01 challenges may require additional DNS provider permissions/APIs not handled by the CA itself."],"error_quality":0.0}