> For the complete documentation index, see [llms.txt](https://docs.greennode.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.greennode.ai/ai-stack/ai-coding.md). # AI Coding AI Coding lets you connect popular AI coding tools — Claude Code, OpenAI SDK, IDE extensions — directly to models operated by GreenNode, using cloud models without managing API keys from external providers. *** ## Architecture Requests from your tool are redirected to a GreenNode endpoint. The endpoint exposes two protocols in parallel to support all existing clients:

Both API protocols connect to a single endpoint sharing the same Model Pool

A single key works for both protocols — but the **key must match the host of the service type that issued it**. *** ## Two service types — settle this before configuring anything | Service type | Pricing model | Key used to call | Base URL host | | -------------- | ----------------------------------------------- | ------------------------------------------------------------- | ----------------------------------------- | | **PAYG** | Pay per token actually used | API Key from **API Keys** | `maas-llm-aiplatform-hcm.api.vngcloud.vn` | | **Token Plan** | Prepaid 30-day package with a fixed token quota | subscription-key from Plan Detail → **Subscription keys** tab | `tokenplan.api.greennode.ai` | *** ## Base URL by service type and client standard | Service type |

Anthropic-standard clients
(Claude Code, Anthropic SDK)

|

OpenAI-standard clients
(OpenAI SDK, LiteLLM, Cursor, Continue.dev, Codex, OpenCode)

| | -------------- | ---------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- | | **PAYG** | `https://maas-llm-aiplatform-hcm.api.vngcloud.vn` | `https://maas-llm-aiplatform-hcm.api.vngcloud.vn/v1` | | **Token Plan** | `https://tokenplan.api.greennode.ai` | `https://tokenplan.api.greennode.ai/v1` | {% hint style="warning" %} Picking the wrong cell in this table is the most common failure: the wrong **`/v1` suffix** gives `404 Not Found`; the wrong **host for your key type** gives `401 Unauthorized` even while the key is still valid. Every tool guide has separate tabs per service type — pick your tab and copy it as-is. {% endhint %} *** ## Supported Tools ### Claude Code Claude Code CLI supports overriding `ANTHROPIC_BASE_URL` — pointing to a GreenNode endpoint instead of Anthropic directly. All sessions, tool calls, and sub-agents route through the GreenNode endpoint, with usage visible in AI Platform Console. ### OpenAI-compatible clients Any tool that allows setting a custom `base_url` in OpenAI SDK format works out of the box — OpenAI Python/Node.js SDK, LiteLLM, Cursor, Continue.dev, and other IDE extensions. Change the base URL and key; no logic changes needed. *** ## Billing | | PAYG | Token Plan | | -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------ | | Pricing | Credit-token, 1 credit = 1 VND | Fixed prepaid 30-day package | | Quota | **Prepaid:** credits deducted every 5-minute collection cycle; model auto-disabled when credits run out. **Postpaid:** usage recorded as debt with no quota limit | Fixed token/request quota per model, shared across all subscription-keys in the plan | | Where to track | [AI Platform Console](https://aiplatform.console.greennode.ai/) → **Usage** and **Cost** | [AI Platform Console](https://aiplatform.console.greennode.ai/) → **Usage** only | *** ## Getting Started | I want to... | Go to | | ------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------- | | Prepare a key and Base URL, and choose a model | [Getting Started with AI Coding](/ai-stack/ai-coding/getting-started.md) | | Use a GUI tool | [GUI Tools group](/ai-stack/ai-coding/gui-tools.md) | | Use a CLI tool | [CLI Tools group](/ai-stack/ai-coding/cli-tools.md) | | Configure an SDK / IDE extension on the OpenAI standard | [Connect OpenAI-compatible Tools to GreenNode MaaS](/ai-stack/ai-coding/connect-openai-compatible-to-maas.md) | | Attach an MCP server to an agent | [Using MCP Servers with AI Coding](/ai-stack/ai-coding/mcp-servers.md) | | Buy and use a Token Plan package | [Token Plan](/ai-stack/token-plan.md) | | Get a PAYG API key | [AI Platform Console](https://aiplatform.console.greennode.ai/) |