> ## Documentation Index
> Fetch the complete documentation index at: https://docs.neuro-tech.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Payment API availability

> Check whether your Neuron supports Neuro-Pay, Agent API wallet operations, or another payment provider

Neuro-Pay and the Agent API wallet operations are separate interfaces. Do not substitute an Agent API wallet operation for a historical Neuro-Pay endpoint.

<Warning>
  Payment availability depends on the Neuron and its providers. Obtain the supported product, base URL, authentication method, and test-value policy from the operator before writing an integration.
</Warning>

## Historical Neuro-Pay links

Older documentation described checkout, customer, invoice, climate, token, authentication, and webhook APIs. Those URLs lead here because their current availability and compatibility have not been confirmed.

## Before building a payment integration

Obtain written confirmation of:

* which payment product and provider the target environment supports;
* the supported base URL and authentication method;
* whether the environment contains test value or real value;
* supported checkout, invoice, wallet, eDaler, and climate capabilities;
* webhook or transaction-state delivery behavior;
* idempotency, retry, limits, reconciliation, and production policy.

## Choose the current reference

* Use [Wallets and payments](/platform/wallets-and-payments) for the conceptual transaction model.
* Use [Payments](/build/payments/overview) for integration safeguards and available starting points.
* Use [Agent API wallet reference](/neuron-api/api-reference/wallet/overview) only for the wallet operations it actually documents.

If the operator confirms a different payment product, use that product's current documentation rather than adapting historical Neuro-Pay examples.