Stage Sandbox only. The hosts below accept Payment API v2 traffic for Tron Shasta testing. They are not a production cutover path.

Where to call the API

Surface	URL	Notes
Payment API base	`https://payment-gateway.learnagent.cloud`	Create and retrieve payments here
OpenAPI contract	`https://payment-gateway.learnagent.cloud/openapi/payments-v2.yaml`	Same bytes the gateway serves at runtime
Contract digest page	`https://payment-gateway.learnagent.cloud/docs`	HTML stub with SHA-256 of the loaded OpenAPI
Merchant docs (this site)	`https://morphosis-cryptopay-docs.learnagent.cloud`	Guides and signed examples

Set your client base URL to the Payment API base. Paths in OpenAPI are absolute from that origin (/v2/payments, /v2/payments/{payment_id}).

export MORPHOSIS_API_BASE_URL="https://payment-gateway.learnagent.cloud"

Credentials

Stage Sandbox merchants receive:

Material	Used for
Request key id (`X-Morphosis-Key-Id`)	Identifying the merchant signing key
Request HMAC secret	Signing Morphosis HMAC v2 requests
Webhook key id (`X-Morphosis-Callback-Key-Id`)	Identifying the webhook signing key
Webhook HMAC secret	Verifying Morphosis callback HMAC v1 events
Registered webhook URL	Where `payment.updated` is delivered

Store secrets in a managed secret store or local environment variables excluded from version control. Never place a live secret in browser code, mobile applications, logs, screenshots, support tickets, or documentation. If you do not yet have sandbox credentials, start with the reference cashier to observe the buyer-facing flow, then request a merchant profile from Morphosis. These are not merchant API endpoints. They help you confirm the sandbox is healthy while you integrate.

Surface	URL
Reference cashier	merchant-cashier.learnagent.cloud
Payment Gateway routing console	api-gateway-governance … view=routing

In the routing console, look for the Payment API v2 public routes POST /v2/payments, GET /v2/payments/{payment_id}, and the public OpenAPI route /openapi/payments-v2.yaml.

Network and asset

Field	Stage Sandbox value
`environment`	`sandbox`
`payment_instructions.network`	`tron_shasta`
`payment_instructions.asset`	`TRX`
Requested amount currency	`USD` only in this slice

Production networks, additional assets, and production hosts are intentionally absent from this contract.

Getting started

Guides

API reference

Sandbox environments

Where to call the API

Credentials

Network and asset

​Where to call the API

​Credentials

​Related operator surfaces

​Network and asset

Where to call the API

Credentials

Related operator surfaces

Network and asset