CM.com Business Messaging API vs GatewayAPI

CM.com Business Messaging API

Figure	CM.com Business Messaging API	GatewayAPI
Price from	—	—
Free plan	—	—
Free trial	Yes	Yes
Open source	—	—
Web	—	Yes
API	Yes	Yes
Plans published	5	4
Spec score · SMS API services	8.7 (#4)	8.3 (#17)
Spec score · Transactional SMS Software	8.6 (#10)	8.7 (#9)
Spec score · SMS APIs	8.6 (#6)	8.8 (#3)
Free plan	No	No
Integrations	CM.com says its platform can integrate with CRMs, ERPs, CDPs, OMS, and CCaaS platforms, and names Salesforce, Zendesk, and Magento 2 as examples.	Supported integrations include WordPress, Kannel, SMPP, Make and Zapier.
Security	API communications must use TLS 1.2 or higher, and authentication uses a product token that CM.com advises keeping out of client-side code and public repositories.	GatewayAPI states that it receives annual ISAE 3000 and ISAE 3402 auditor statements concerning GDPR compliance.
Support	Subscription inclusions list access to the Knowledge Center, emergency monitoring through the Network Operations Center, and an online status portal.	The maker advertises average support response times below 20 seconds during working hours and a 98 percent satisfaction rate.
Trial	The developer documentation says a trial lets users test most API capabilities without platform onboarding or configuring their own channels; it does not state a duration.	New accounts enter a 30-day trial period with security-related restrictions until activation.

CM.com Business Messaging API has no write-up on Specifiction yet; its figures are above.

GatewayAPI has no write-up on Specifiction yet; its figures are above.