Use your Agent.Space allowance in any Agent product

02 / Developer API

Use your Agent.Space allowance in any Agent product

Your Agent.Space allowance includes Share for OpenAI models and Flex for other available models. Use it in Agent.Space, Codex, Claude Code, OpenCode, Hermes, and other Agent products you already work with.

View my API Key

Your Agent.Space allowance includes

Share + Flex

Share

OpenAI models

Included with your Share plan.

Flex

Other available models

A flexible balance you can top up as needed.

Use it in the Agent products you already know

Built inAgent.Space
Codex
Claude Code
OpenCode
Hermes
Your Agent product

Use it directly in Agent.Space. For other products, connect your Developer API once and keep working there.

GPT Image 2 uses Share first, then Flex when no plan is available or its allowance is exhausted. Other models use their listed funding source.

View plansConfigure Developer API

03 / Agent clients

Use Agent.Space models in the client you already love

Download Codex, Claude Code, or OpenCode and point it at the Agent.Space Developer API. One API key brings your Share and Flex allowance, and every available model, into the terminal and editor you already work in.

  • Codex

    OpenAI · Coding agent for terminal and IDE

    OpenAI's official coding agent with a CLI, IDE extensions, and a desktop app. It connects over the OpenAI Responses protocol and runs the OpenAI models in your Share allowance.

    • macOS
    • Linux
    • Windows
    Install · macOS / Linux
    curl -fsSL https://chatgpt.com/codex/install.sh | sh
    Download from official site

  • Claude Code

    Anthropic · Terminal coding agent

    Anthropic's official coding agent, speaking native Anthropic Messages. Point its base URL at Agent.Space to run Claude models from your Flex balance.

    • macOS
    • Linux
    • Windows
    Install · macOS / Linux
    curl -fsSL https://claude.ai/install.sh | bash
    Download from official site

  • OpenCode

    Open source · Terminal coding agent

    An open-source terminal agent with custom providers, compatible with both OpenAI and Anthropic protocols. One config unlocks every model available on Agent.Space.

    • macOS
    • Linux
    • Windows
    Install · macOS / Linux
    curl -fsSL https://opencode.ai/install | bash
    Download from official site

Why connect through Agent.Space

  • One key

    One API key, many model providers

    OpenAI, Anthropic, DeepSeek, and more share a single key and endpoint. Switch models without switching accounts.

  • Two protocols

    OpenAI Responses and Anthropic Messages

    Connect over each client's native protocol. No proxies and no client patches: configure once and keep working.

  • Clear billing

    Share and Flex stay separate

    The model you call decides which allowance pays, and every request is visible in Request history.

  • Your choice

    Swap clients any time

    Codex today, Claude Code tomorrow. Your key and allowance stay the same, so your workflow never breaks.

Three moves: get an API key, pick a model, write the config. No client code changes required.

  1. Get an API key

    Create a key in the Agent.Space Developer API panel, for example “Codex · MacBook”. Replace <your-api-key> in the copied config with the full value.

  2. Pick a model

    Open the setup guide, choose your client and an available model, and let the template fill in the exact model id.

  3. Write the client config

    Copy the complete config, replace the key placeholder, and save it at the path shown for your client. Keep the file local.

Get my API key
Config file · ~/.codex/config.toml
model_provider = "agent-space"
model = "<model-id>"

[model_providers.agent-space]
name = "Agent.Space"
base_url = "https://api.agent.space/v1"
experimental_bearer_token = "<your-api-key>"
wire_api = "responses"

Codex uses the OpenAI Responses protocol, so the base URL ends in /v1. Replace <your-api-key> in config.toml, and keep the file local.

Other ways to install

  • npmnpm install -g @openai/codex
  • Homebrewbrew install --cask codex
  • Windowspowershell -ExecutionPolicy ByPass -c "irm https://chatgpt.com/codex/install.ps1 | iex"

The template already includes the endpoint and selected model. Replace <your-api-key>, then keep the config file local and never commit or share it.

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