Cloudflare DNS API
Cloudflare's REST API for managing DNS records, zones, page rules, firewall rules, and other Cloudflare services programmatically across managed domains.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
API tokens with zone:dns_records:edit scope for DNS only — excellent least-privilege model. API tokens can be restricted to specific zones. SOC2 Type II, ISO27001. DNS changes propagate immediately on Cloudflare's network.
⚡ Reliability
Best When
Your DNS is managed through Cloudflare and you need to automate record management, DDNS, or DNS-based workflows.
Avoid When
Your domain is on a different DNS provider, or you need domain registration features.
Use Cases
- • Dynamic DNS (DDNS) updates for home servers or dynamic IPs
- • Automated DNS record management in CI/CD deployments
- • Managing DNS as code across multiple domains and zones
- • Programmatic certificate and TLS configuration
- • Automating Let's Encrypt DNS challenge records for wildcard certs
Not For
- • Domain registration (use Cloudflare Registrar or Namecheap/GoDaddy)
- • DNS resolution queries (use the DNS resolver, not management API)
- • Domains not managed through Cloudflare
Interface
Authentication
API tokens with granular permissions (recommended) or Global API key (legacy, full access). API tokens scoped to specific zones, resources, and actions. OAuth available for third-party apps.
Pricing
DNS management is free on all Cloudflare plans. Paid plans add performance and security features. DNS API included at no extra cost.
Agent Metadata
Known Gotchas
- ⚠ Zone ID required for most operations — must fetch zone ID first from zone listing by domain name
- ⚠ DNS propagation is near-instant on Cloudflare's network but external resolvers may cache up to TTL
- ⚠ API token permissions must include Zone:DNS:Edit for record modification — read and write are separate permissions
- ⚠ Proxied records (orange cloud) show Cloudflare IPs, not origin IPs — affects monitoring expectations
- ⚠ Rate limit of 1200 req/5 min resets on a rolling window — not a fixed minute reset
- ⚠ Record type-specific validation — MX records need priority, SRV records need specific format
Alternatives
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Scores are editorial opinions as of 2026-03-07.