Automated TLS certificates
for Microsoft Azure
Acmebot issues and renews free certificates from Let's Encrypt and other ACME CAs — DNS-01 validation, wildcard support, ARI-aware renewal scheduling, and Azure Key Vault private key storage.
Why teams choose Acmebot
Reduce expiry risk, retire one-off renewal scripts, and keep certificate work inside Azure-native security and monitoring.
Keep private keys in Key Vault
Key Vault generates or reuses the private key, and Acmebot merges the ACME-issued chain back into the same certificate.
Operate certificate fleets
Each managed certificate keeps its own renewal state, next check time, CA-guided timing when available, and fallback behavior.
Replace one-off scripts
Use the dashboard for daily work, the HTTP API for integrations, and the CLI for repeatable automation.
Issue apex, wildcard, and SAN names
Cover zone apex, wildcard, and multi-SAN certificates across multiple DNS zones and providers from one deployment.
Route results to your team
Send operation results to Slack, Microsoft Teams, Logic Apps, Power Automate, or your own webhook endpoint.
Use the CA your policy requires
Start with Let's Encrypt, or use GlobalSign, Google Trust Services, SSL.com, ZeroSSL, or a custom ACME v2 endpoint.
Designed for production rollout
v5 focuses on making adoption safer for existing deployments and easier to operate after the first certificate is issued.
Preserve what already works
Migrate from v4 while keeping existing Key Vault certificates, DNS provider settings, managed identity, and monitoring resources.
Use one operation model
Issue, renew, revoke, and track operations through the same model whether you use the dashboard, HTTP API, CLI, or scheduled renewal.
Keep access and visibility clear
Protect the dashboard with authentication and app roles, scope Azure access with managed identity, and monitor with telemetry and webhooks.
Bring renewed certificates to Azure services
Acmebot owns issuance and renewal; each Azure service consumes the current Key Vault certificate through its supported pattern.
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DNS providers
Use the DNS provider you already run, or connect Acmebot to your own DNS automation API.
Need another provider? The Custom DNS provider can connect Acmebot to your own DNS automation API.
Certificate authorities
Use a verified ACME v2 endpoint, choose a CA with EAB, or point Acmebot at your own ACME directory URL.
Common default for public certificates. No external account binding credentials are required.
Commercial CA option for automated certificate issuance through ACME.
Google public CA endpoint for ACME-issued certificates.
Commercial CA endpoint for 90-day certificates through ACME.
ACME CA option for teams that already use ZeroSSL accounts.
Deploy to Azure
Start with the Azure Public template, then connect DNS permissions and dashboard authentication for your environment.
Acmebot v5 GA
Provision the Function App, storage, monitoring resources, application settings, and optional Key Vault for a new Acmebot environment.
- Scheduled renewals
- ARI-aware timing
- Key Vault storage
- Private network support
- Azure Monitor telemetry
Also available from the Terraform Registry
From deployment to first certificate
A small amount of Azure setup gives your team an automated certificate path it can keep using.
Deploy
Deploy the v5 template and choose the ACME endpoint, managed identity, Key Vault, and monitoring settings.
Configure DNS
Grant the selected identity or provider credential permission to create and delete DNS-01 TXT records.
Issue Certificates
Use the dashboard to issue a certificate, confirm the Key Vault version, and let scheduled renewals take over.
Sponsors
Thank you to the organizations and individuals who support Acmebot development.
Interested in supporting the project?
Become a SponsorOpen source
Apache License 2.0 — open source and free to use.