Polymorfa vs Gupshup

Three reasons teams move from Gupshup

1. 01

   Meta's request shape, not form fields

   Polymorfa's Graph API takes Meta's JSON body for both linked-device and Cloud API numbers, so code written against Meta's documentation works without a translation layer.^3,7

   Gupshup: Gupshup's self-serve send endpoint takes form-encoded fields with the message as a JSON string inside one of them.⁸

   curl https://api.gupshup.io/wa/api/v1/msg \
     -H "apikey: $GUPSHUP_API_KEY" \
     -H "Content-Type: application/x-www-form-urlencoded" \
     --data-urlencode 'channel=whatsapp' \
     --data-urlencode 'source=15550001111' \
     --data-urlencode 'destination=15551234567' \
     --data-urlencode 'message={"type":"text","text":"Your order shipped."}' \
     --data-urlencode 'src.name=MyApp'

   # Meta's body. Works for a Cloud API or a linked-device number.
   curl -X POST "https://api.polymorfa.com/graph/whatsapp/v26.0/$NUMBER_ID/messages" \
     -H "Authorization: Bearer $POLYMORFA_PROJECT_TOKEN" \
     -H "Content-Type: application/json" \
     -d '{
       "messaging_product": "whatsapp",
       "to": "15551234567",
       "type": "text",
       "text": { "body": "Your order shipped." }
     }'

2. 02

   A daily price per number, not a fee per message

   A Polymorfa linked-device number costs $0.25 for each day it is online, $7.50 for a full 30 days, and nothing on a disconnected day. A busy support line and a quiet one cost the same. Linked-device numbers also run groups and channels.^2,9,10

   Gupshup: On Gupshup, every template and session message adds $0.001, incoming ones included.¹

3. 03

   Signed webhooks that retry for 24 hours

   Polymorfa signs every delivery with HMAC-SHA256 and makes up to eight delivery attempts over 24 hours, set per webhook. Sends accept an Idempotency-Key, so a retried request within 24 hours does not send the message twice.^11,12

   Gupshup: Gupshup's webhook guide documents a retry "after a brief interval" and IP allowlisting, and no payload signature.¹³