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Configure API keys to enable SoloEnt’s AI writing features.

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Entry points

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Quick config from chat

1

Click the model name at the bottom of the chat

Click the model name at the bottom of the Agent chat to open the model settings panel.
Quick API configuration from chat

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Via settings panel

1

Open Agent settings

Click the settings icon in the Agent panel.
2

Go to model settings

Choose whether to use official models directly or configure your own model (BYOK).
API configuration via settings panel

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Official API

SoloEnt provides an official API. Once logged in, you can use it directly without setting up any third-party keys.

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Free models

Official free models are available immediately after login. The available free models and discounts are updated regularly with ongoing campaigns.
Every registered user gets a trial credit of $0.5; join platform activities to earn more free credit.
Settings panel showing SoloEnt AI as the API provider with Free tab listing available free models
Free models are for trying out the tool. Response times may be slower or less consistent during periods of high demand.

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Subscription models (VIP)

Lite, Pro, and Max subscribers can use all models in the VIP list — covering the latest models from top providers including Anthropic, OpenAI, Google, and DeepSeek — without configuring any third-party API key.
SoloEnt API pricing matches the official pricing of each model provider, with no additional fees, and different models offer different discounts from time to time.
See all official models and the latest discounts at soloent.ai/en/models.

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Third-party API key configuration

An API key is your authentication credential for accessing AI models — typically a random string:
Important: API access is billed separately from monthly subscriptions. A $20 subscription does not include API usage. For example, a Gemini membership you subscribe to cannot be used as an API here.

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Where to get API keys

See the complete API directory for detailed provider information and registration steps.

Get free API keys

Explore free tier options and community resources

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Filling in the API details you purchased

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Standard configuration (official providers)

For OpenAI, Anthropic, Google, and select aggregators — find the corresponding provider in the API Provider dropdown and enter only the API Key:

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OpenAI-compatible configuration (third-party)

Select OpenAI Compatible from the API Provider dropdown to configure a third-party provider. API Configuration panel with API Provider dropdown expanded, OpenAI Compatible option highlighted Most third-party providers require all three fields:
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string
required
API endpoint URL (e.g., https://api.provider.com/v1)
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string
required
Your API key
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string
required
Model identifier (e.g., gpt-4-turbo)
All three fields are required. Confirm with your provider before purchasing.

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Local LLMs

Run AI models on your own computer for privacy and offline access.

Local model setup guide

Complete guide to running models locally

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Using a Codex / Claude Code subscription in SoloEnt

If you already have an OpenAI Codex or Claude Code subscription, you can reuse that subscription’s quota directly in SoloEnt while enjoying SoloEnt’s professional writing Skills — no need to buy a separate API key.

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Using a Codex subscription

Select BYOK, choose OpenAI Codex in the API Provider list, and click to sign in to OpenAI Codex. Once signed in, you can select the models Codex provides (such as GPT-5.x) from the model list. No extra API key is needed when using a ChatGPT Plus or Pro subscription. BYOK configuration with API Provider set to OpenAI Codex, showing the Sign in to OpenAI Codex button

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Using a Claude Code subscription

First install the Claude Code CLI on your computer and bind your Claude Code subscription account, making sure Claude Code runs correctly locally. Then select BYOK, choose Claude Code from the list, and — with no other setup — pick the Claude model you want directly from the model list. BYOK configuration with API Provider set to Claude Code, showing the Claude Code CLI Path and model selection

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Common error codes

Other errors caused by instability in third-party models cannot be accurately diagnosed by SoloEnt at this time.

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Other FAQ

  • Verify you copied the entire key
  • Check if the key has expired
  • Regenerate from the provider dashboard
  • Check your internet connection
  • Verify the Base URL (for OpenAI Compatible configuration)
  • Try without a VPN

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Next steps

Language settings

Set your preferred language

Start writing

Create your first project

Local models

Run AI models on your computer

Free API keys

Get free access to AI models