Integrations

Zed

Configure Zed with a SimpleLLM API key and an OpenAI-compatible model.

Connect Zed's Agent to SimpleLLM through a custom OpenAI-compatible provider. You need a SimpleLLM API key and account credits; create a key in the dashboard.

Add the provider

Open your user settings.json in Zed and merge this configuration into your existing settings. If language_models or openai_compatible already exists, add the simplellm entry inside it instead of creating a duplicate key.

json

{
  "language_models": {
    "openai_compatible": {
      "simplellm": {
        "api_url": "https://api.simplellm.eu/v1",
        "available_models": [
          {
            "name": "DeepSeek-V4-Flash",
            "display_name": "DeepSeek V4 Flash (SimpleLLM)",
            "max_tokens": 1048576,
            "max_output_tokens": 8192,
            "capabilities": {
              "tools": true,
              "images": false,
              "chat_completions": true,
              "interleaved_reasoning": true,
              "max_tokens_parameter": true
            }
          }
        ]
      }
    }
  }
}

Setting	Meaning
`api_url`	SimpleLLM's API base, including `/v1`. Do not append `/chat/completions`.
`name`	Exact, case-sensitive SimpleLLM model ID. Do not use an upstream provider's model name.
`max_tokens`	Zed's model context budget, including input and output.
`max_output_tokens`	Requested output budget; 8192 is a starting value, not the model's advertised maximum.
`chat_completions`	Uses the supported chat-completions API; keep this enabled.
`max_tokens_parameter`	Sends the output budget as `max_tokens`.
`interleaved_reasoning`	Preserves streamed reasoning in the `reasoning_content` field for subsequent turns.

Add your API key and select the model

Run agent: open settings from Zed's command palette. Under LLM Providers, find simplellm and enter your SimpleLLM API key. Then open the Agent panel and select DeepSeek V4 Flash (SimpleLLM) in the model picker.

Keep the key out of settings.json. Zed stores keys entered through its provider settings in the system keychain. As an alternative, the provider ID simplellm uses the SIMPLELLM_API_KEY environment variable; it must be available to the Zed process when launched.

Change models or output limits

Use Models & pricing to check the current model ID, availability and context window. Update name, display_name and the context budget together when choosing another model. Tool, image and reasoning capabilities must match that model; these flags do not add capabilities to it.

Increase the output budget if a response reaches its limit before completing the answer. Reasoning also consumes output tokens. Longer outputs may take more than 60 seconds and cost more SC. Zed's OpenAI-compatible Agent integration uses streaming; see streaming and cancellation and billing.

Troubleshooting

Provider missing: check the settings nesting and update Zed if it does not recognize openai_compatible.
401: check the API key saved for simplellm.
402: check the account balance and API-key spending limit.
400: check the model ID, context size and model-specific options before retrying. See Troubleshooting.

Configuration fields were checked against Zed's provider documentation and OpenAI-compatible integration source. This sample has not been tested end to end in the Zed app.