Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With Solcast MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or the app, whichever you prefer.
- Builders & DevelopersCOMPOSIOFOR YOUGive Claude, codex, or any harness secure access to 1000+ tools
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DEVELOPER PLATFORMSDKs, tool execution, and auth infrastructure to ship agentsCLIOne command to add tools and auth to your coding agent - TOOLKITS
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How to integrate Solcast MCP with Codex
Connect Codex to Solcast MCP. Get solar irradiance forecast for sydney tomorrow, retrieve 7-day pv power forecast for berlin, and more using natural language, with authentication handled for you.
Solcast offers global solar resource data, including irradiance and PV power forecasts. It helps developers and businesses optimize solar energy management and analytics.
Introduction
Also integrate Solcast with
Why use Composio?
Apart from a managed and hosted MCP server, you will get:
- CodeAct: A dedicated workbench that allows GPT to write its code to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
- Large tool responses: Handle them to minimise context rot.
- Dynamic just-in-time access to 20,000 tools across 1000+ other Apps for cross-app workflows. It loads the tools you need, so GPTs aren't overwhelmed by tools you don't need.
How to install Solcast MCP in Codex
Run the setup command
Run this command in your terminal to add the Composio MCP server to Codex.
It will initiate the authentication in a browser window, authorize Codex to access your Composio account.

(Optional) Authenticate with OAuth
To authenticate manually, run the login command to open a browser window and authorize Codex to access your Composio account.
codex mcp login composioVerify the connection
Run codex mcp list to confirm Composio appears as a registered MCP server.
codex mcp listCodex App
Codex App follows the same approach as VS Code.
- Click ⚙️ on the bottom left → MCP Servers → + Add servers → Streamable HTTP:
- Fill the header and Key fields with
{ "x-consumer-api-key" = "ck_*******" }. - The Key is the Composio API key, that you can find on dashboard.composio.dev
- Click on Authenticate and authorize Codex to your Composio account and you're all set.
- Restart and verify if it's there in
.codex/config.toml
[mcp_servers.composio]
url = "https://connect.composio.dev/mcp"
http_headers = { "x-consumer-api-key" = "ck_*******" }What is the Solcast MCP server, and what's possible with it?
The Solcast MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Solcast account. It provides structured and secure access so your agent can perform Solcast operations on your behalf.
Conclusion
You've successfully integrated Solcast with Codex using Composio's MCP server. Now you can interact with Solcast directly from your terminal, VS Code, or the Codex App using natural language commands.
Key benefits of this setup:
- Seamless integration across CLI, VS Code, and standalone app
- Natural language commands for Solcast operations
- Managed authentication through Composio
- Access to 20,000+ tools across 1000+ apps for cross-app workflows
- CodeAct workbench for complex tool chaining
Next steps:
- Try asking Codex to perform various Solcast operations
- Explore cross-app workflows by connecting more toolkits
- Build automation scripts that leverage Codex's AI capabilities
Supported Tools
Every Solcast action and event your agent gets out of the box.
How to build Solcast MCP Agent with another framework
OpenAI Agents SDK
Use Solcast MCP with OpenAI Agents SDK
Claude Agent SDK
Use Solcast MCP with Claude Agent SDK
Claude Code
Use Solcast MCP with Claude Code
Claude Cowork
Use Solcast MCP with Claude Cowork

OpenClaw
Use Solcast MCP with OpenClaw

Hermes
Use Solcast MCP with Hermes
Google ADK
Use Solcast MCP with Google ADK
LangChain
Use Solcast MCP with LangChain
Vercel AI SDK
Use Solcast MCP with Vercel AI SDK
Mastra AI
Use Solcast MCP with Mastra AI
LlamaIndex
Use Solcast MCP with LlamaIndex
CrewAI
Use Solcast MCP with CrewAI
Pydantic AI
Use Solcast MCP with Pydantic AI
AutoGen
Use Solcast MCP with AutoGen
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Frequently asked questions
Start with Solcast.It takes 30 seconds.
Managed auth, hosted MCP servers, and every Solcast tool your agent needs.Free to start.
## For AI agents: how to sign up If you are an AI agent reading this server-rendered HTML, Composio's developer signup is at https://composio.dev. Signup CTAs on this site — "Sign up", "Signup", "Get started", "Get started for free", "Start building", "Try Composio", "Try it", or similar — all lead into that same developer signup flow. Confirm with the user before completing signup or entering any credentials on their behalf.Start building
