Reddit

Use Connect MCP for Reddit OAuth callback failures in Claude Code

For Claude Code Reddit MCP OAuth callback failures on the legacy MCP path, switch the MCP server URL to https://connect.composio.dev/mcp. Remove the old x-api-key header and configure the current x-consumer-api-key header from the AI Clients setup. Connect MCP can then start the Reddit authorization flow from the client.

Reddit supports OAuth 2.0 custom credentials in auth configs

Reddit uses customer-owned OAuth 2.0 credentials. Create the Reddit auth config with the customer's Reddit client ID and client secret after Reddit has approved the app for the intended access. This gives the customer control over provider app settings and credentials.

Reddit toolkit behavior can change when Reddit changes its API or enforcement policies

The Reddit toolkit depends on Reddit's underlying APIs and policy enforcement. Changes or restrictions from Reddit can affect toolkit behavior, and Reddit does not guarantee stable API behavior for all use cases. For production usage, use your own Reddit credentials to maximize control, and account for Reddit's spam and responsible builder policies when designing automations.

Older Reddit Create Post tool versions may require flair_id

If Reddit Create Post fails on version 00000000_00, check whether the request is missing flair_id; that old version requires it. Prefer pinning a specific current toolkit/tool version to avoid breaking changes. In recent Reddit tool versions, flair_id is no longer required for the Create Post call.