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How to connect Solcast to Claude

Connect Claude Web, Desktop and Cowork 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.

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Solcast offers global solar resource data, including irradiance and PV power forecasts. It helps developers and businesses optimize solar energy management and analytics.

6 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Solcast account to Claude via Composio Connect, enabling it to get solar irradiance forecast for Sydney tomorrow, retrieve 7-day PV power forecast for Berlin, summarize recent solar resource assessment for your site, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Solcast with

Claude CodeOpenAI Agents SDKClaude Agent SDKCodexOpenClawHermesAtomic AgentGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAIPydantic AIAutoGen

Connecting Solcast to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your Solcast account

Back in Claude, ask it to connect to Solcast or give it any Solcast-related task.

For example, ask Claude to:

  • "Get solar irradiance forecast for Sydney tomorrow."
  • "Retrieve 7-day PV power forecast for Berlin."
  • "Summarize recent solar resource assessment for your site."

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Solcast account is ready to use.

What is the Solcast Claude Connector, 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.

Troubleshooting

1. Why does Claude not use the Composio connector for Solcast?

The connector can show as connected, but Claude must use it in each Solcast conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Solcast again.

2. Why does Claude show an MCP server error before Solcast connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Solcast.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Solcast.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Solcast authorization link not work?

The Composio connector is one server. Your Solcast account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Solcast connection.
  • Composio creates a fresh Solcast authorization link.
  • Open that link in your browser and finish the Solcast sign-in.

4. Why do Solcast actions fail after they worked before?

The Solcast connection can expire or lose permission.

  • Ask Claude to inspect the Solcast connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Solcast account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Solcast.
  • If the action still fails with a permission error, check that the connected account has that permission in Solcast itself.

5. How do I switch to a different Solcast account?

Claude can manage the Solcast connection for you.

  • Ask Claude to disconnect or delete the current Solcast account.
  • Ask Claude to connect Solcast again.
  • Open the new Composio authorization link for Solcast.
  • Sign in with the other Solcast account in the browser.
  • After the account connects, ask Claude to retry the Solcast task.

6. Why is my Solcast connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Solcast connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Solcast tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Solcast.
TOOLS

Supported Tools

Every Solcast action and event your agent gets out of the box.

Get Historic Radiation And Weather

Tool to get historical irradiance and weather estimated actuals for a requested location.

Get PV Power Resource

Tool to retrieve a specific PV power resource by its unique identifier.

Get Resources PV Power Sites

Tool to list PV power resources available to authenticated user.

Patch PV Power Resource

Tool to partially update an existing PV power resource's technical specifications.

Create PV Power Resource

Tool to create a new PV power resource for Advanced PV Power forecasting.

Update PV Power Resource

Tool to update an existing PV power resource with comprehensive technical specifications for solar installation site modeling.

FRAMEWORKS

How to build Solcast MCP Agent with another framework

Claude Code logo

Claude Code

Use Solcast MCP with Claude Code

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Solcast MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Solcast MCP with Claude Agent SDK

Codex logo

Codex

Use Solcast MCP with Codex

OpenClaw logo

OpenClaw

Use Solcast MCP with OpenClaw

Hermes logo

Hermes

Use Solcast MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Solcast MCP with Atomic Agent

Google ADK logo

Google ADK

Use Solcast MCP with Google ADK

LangChain logo

LangChain

Use Solcast MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Solcast MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Solcast MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Solcast MCP with LlamaIndex

CrewAI logo

CrewAI

Use Solcast MCP with CrewAI

Pydantic AI logo

Pydantic AI

Use Solcast MCP with Pydantic AI

AutoGen logo

AutoGen

Use Solcast MCP with AutoGen

FAQ

Frequently asked questions

With a standalone Solcast MCP server, the agents and LLMs can only access a fixed set of Solcast tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Solcast and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Solcast tools.

Yes, absolutely. You can configure which Solcast scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Solcast data and credentials are handled as safely as possible.

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