Cloudflare API - Using Cloudflare’s API, you can do just about anything you can do on cloudflare.com via the customer dashboard.

CloudFlare-API.md

Cloudflare's API Cheat-Sheet

VARIABLE	VALUE
EMAIL	The email address associated with your Cloudflare account.
KEY	The global API key associated with your Cloudflare account.
DOMAIN	The name of the domain to create a zone record for.
JUMP_START	If true, automatically attempts to fetch existing DNS records when creating a domain’s zone record
ZONE_ID	The unique ID of the domain’s zone record. Assigned by Cloudflare. Required when managing an existing zone record and its DNS records.
DNS_ID	The unique ID given to each of the domain’s individual DNS records. Assigned by Cloudflare. Required when updating or deleting an existing DNS record.
TYPE	The DNS record type including A, CNAME, MX and TCXT ecords. This equates to the Type column on the Cloudflare dashboard.
NAME	The DNS record name. This equates to the Name column on the Cloudflare dashboard.
CONTENT	The DNS record content. This equates to the Value column on the Cloudflare dashboard.
PROXIED	If true, a DNS record will pass through Cloudflare’s servers. Un-proxied records will not and are for DNS resolution only. Applicable to A and CNAME records only. This equates to the Status column on the Cloudflare dashboard.
TTL	Valid TTL. Must be between 120 and 2,147,483,647 seconds, or 1 for automatic
PRIORITY	The order in which servers should be contacted. Applicable to MX records only.

ALL If true, JSON output will be pretty-printed using Python’s json.tool module. Otherwise, output will be limited to specified data.

Code

EMAIL="user@example.com"; \
KEY="08n46q4ofo0v5pc3u3g3eu517o69axu8s6ml4"; \
ZONE_ID="8b717207bcee4047af2e9dff95832996"; \
TYPE="A"; \
NAME="subdomain."; \
CONTENT="<IP>"; \
PROXIED="true"; \
TTL="1"; \
curl -X POST "https://api.cloudflare.com/client/v4/zones/$ZONE_ID/dns_records/" \
    -H "X-Auth-Email: $EMAIL" \
    -H "X-Auth-Key: $KEY" \
    -H "Content-Type: application/json" \
    --data '{"type":"'"$TYPE"'","name":"'"$NAME"'","content":"'"$CONTENT"'","proxied":'"$PROXIED"',"ttl":'"$TTL"'}' \
    | python -m json.tool;

Some requests to the Cloudflare API produce a lot of JSON data:

Alternative code:

EMAIL="steve@example.com"; \
KEY="08n46q4ofo0v5pc3u3g3eu517o69axu8s6ml4"; \
ZONE_ID="8b717207bcee4047af2e9dff95832996"; \
TYPE="A"; \
NAME="example.com"; \
CONTENT="203.0.113.50"; \
PROXIED="true"; \
TTL="1"; \
ALL="false"; \
curl -X POST "https://api.cloudflare.com/client/v4/zones/$ZONE_ID/dns_records/" \
    -H "X-Auth-Email: $EMAIL" \
    -H "X-Auth-Key: $KEY" \
    -H "Content-Type: application/json" \
    --data '{"type":"'"$TYPE"'","name":"'"$NAME"'","content":"'"$CONTENT"'","proxied":'"$PROXIED"',"ttl":'"$TTL"'}' \
    | if $ALL; then python -m json.tool; else python -c "import sys,json;data=json.loads(sys.stdin.read()); print('Type: ' + data['result']['type'] + '\n' + 'DNS ID: ' + data['result']['id'] if data['success'] else 'ERROR: ' + data['errors'][0]['message'])"; fi

---

Zone Records

Create a New Zone Record

In order to create DNS records for a domain, we first need to create a unique zone record for that domain to which we’ll later add these DNS records. To create a zone record for example.com, use the following code:

EMAIL="steve@example.com"; \
KEY="08n46q4ofo0v5pc3u3g3eu517o69axu8s6ml4"; \
DOMAIN="example.com"; \
JUMP_START="false"; \
curl -X POST "https://api.cloudflare.com/client/v4/zones/" \
    -H "X-Auth-Email: $EMAIL" \
    -H "X-Auth-Key: $KEY" \
    -H "Content-Type: application/json" \
    --data '{"name":"'"$DOMAIN"'","jump_start":'"$JUMP_START"'}' \
    | python -m json.tool;

List an Existing Zone Record

To display the existing zone record for example.com, use the following code:

EMAIL="steve@example.com"; \
KEY="08n46q4ofo0v5pc3u3g3eu517o69axu8s6ml4"; \
DOMAIN="example.com"; \
curl -X GET "https://api.cloudflare.com/client/v4/zones?name=$DOMAIN" \
    -H "X-Auth-Email: $EMAIL" \
    -H "X-Auth-Key: $KEY" \
    -H "Content-Type: application/json" \
    | python -m json.tool;

Delete an Existing Zone Record

To delete the existing zone record for example.com and all its related DNS records, use the following code. Note that we need to provide the unique ID of the domain’s existing zone record:

EMAIL="steve@example.com"; \
KEY="08n46q4ofo0v5pc3u3g3eu517o69axu8s6ml4"; \
ZONE_ID="8b717207bcee4047af2e9dff95832996"; \
curl -X DELETE "https://api.cloudflare.com/client/v4/zones/$ZONE_ID" \
    -H "X-Auth-Email: $EMAIL" \
    -H "X-Auth-Key: $KEY" \
    -H "Content-Type: application/json" \
    | python -m json.tool;

Create a New DNS [A] Record (Domain or Sub-Domains)

To create a DNS record that points example.com to the IP address 203.0.113.50, use the following code:

EMAIL="steve@example.com"; \
KEY="08n46q4ofo0v5pc3u3g3eu517o69axu8s6ml4"; \
ZONE_ID="8b717207bcee4047af2e9dff95832996"; \
TYPE="A"; \
NAME="example.com"; \
#NAME="sub-domain"; \
CONTENT="203.0.113.50"; \
PROXIED="true"; \
TTL="1"; \
curl -X POST "https://api.cloudflare.com/client/v4/zones/$ZONE_ID/dns_records/" \
    -H "X-Auth-Email: $EMAIL" \
    -H "X-Auth-Key: $KEY" \
    -H "Content-Type: application/json" \
    --data '{"type":"'"$TYPE"'","name":"'"$NAME"'","content":"'"$CONTENT"'","proxied":'"$PROXIED"',"ttl":'"$TTL"'}' \
    | python -m json.tool;

The "delete existing record" url should include the record id.