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All API calls must be made from your backend. Client applications must never call Meridian APIs directly.

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Base URLs

EnvironmentURLPurpose
Sandboxhttps://rtd-us.sandbox.api.meridianpay.comTesting and certification
Productionhttps://rtd-us.api.meridianpay.comLive traffic
Meridian provides your credentials and endpoint access for the Sandbox environment during onboarding. Always validate your integration against Sandbox before requesting production access.

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Example credentials

CredentialSandboxProduction
API Keyakey_test_q5zemhdwub8ztw2mlpykvhu0akey_live_q5zemhdwub8ztw2mlpykvhu0
API Secretasec_test_t44ne6ipaneugxurs13ly55tasec_live_t44ne6ipaneugxurs13ly55t
Webhook API Keywkey_test_z212127xb84fntpw4whvhd9xwkey_live_z212127xb84fntpw4whvhd9x
Webhook API Secretwsec_test_tolihur9tjlbah7558uuojf3wsec_live_tolihur9tjlbah7558uuojf3