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mcp-reddit-publisher

mcp-reddit-publisher

mcp-reddit-publisher

MCP para Claude/Codex/OpenCode publicar no Reddit com segurança.

  • Repo: https://github.com/osamuelnovaes/mcp-reddit-publisher

  • npm: mcp-reddit-publisher (ainda não publicado; por enquanto use github:osamuelnovaes/mcp-reddit-publisher)

  • Por padrão é seguro: REDDIT_DRY_RUN=true, então nada é publicado de verdade até você trocar para false.

Instalação rápida

Você não precisa clonar o projeto, instalar dependências nem rodar build.

Claude Code

Rode uma vez:

npx -y github:osamuelnovaes/mcp-reddit-publisher install claude-code \
  --client-id "SEU_REDDIT_CLIENT_ID" \
  --client-secret "SEU_REDDIT_CLIENT_SECRET" \
  --refresh-token "SEU_REDDIT_REFRESH_TOKEN" \
  --user-agent "mcp-reddit-publisher/0.1.0 by u/SEU_USUARIO" \
  --allowed "SideProject,saas,startups"

Depois reinicie o Claude Code e peça:

Use o reddit-publisher para verificar o health e buscar subreddits sobre SaaS.

Claude Desktop

Rode uma vez:

npx -y github:osamuelnovaes/mcp-reddit-publisher install claude-desktop \
  --client-id "SEU_REDDIT_CLIENT_ID" \
  --client-secret "SEU_REDDIT_CLIENT_SECRET" \
  --refresh-token "SEU_REDDIT_REFRESH_TOKEN" \
  --user-agent "mcp-reddit-publisher/0.1.0 by u/SEU_USUARIO" \
  --allowed "SideProject,saas,startups"

Depois reinicie o Claude Desktop.

Só testar se o pacote roda

npx -y github:osamuelnovaes/mcp-reddit-publisher --help

Se apareceu a ajuda, o pacote baixou e executou corretamente.

Related MCP server: mcp-reddit-publisher

O que o comando install faz

  • install claude-code: chama o CLI oficial do Claude Code e adiciona o MCP automaticamente.

  • install claude-desktop: edita/cria o arquivo claude_desktop_config.json automaticamente.

  • Não publica nada no Reddit durante a instalação.

  • Mantém REDDIT_DRY_RUN=true por padrão.

Credenciais Reddit

Crie um app no Reddit uma vez:

  1. Acesse https://www.reddit.com/prefs/apps

  2. Clique em create another app.

  3. Escolha o tipo script para uso pessoal/local.

  4. Copie:

    • client_id

    • client_secret

  5. Configure um user agent, por exemplo:

mcp-reddit-publisher/0.1.0 by u/seu_usuario

A forma recomendada é usar:

REDDIT_REFRESH_TOKEN

Alternativa para app script:

--username "SEU_USUARIO" --password "SUA_SENHA"

Codex, OpenCode ou outros clientes MCP

Se o cliente não tem instalador automático ainda, gere o bloco pronto:

npx -y github:osamuelnovaes/mcp-reddit-publisher setup codex \
  --client-id "..." \
  --client-secret "..." \
  --refresh-token "..." \
  --user-agent "mcp-reddit-publisher/0.1.0 by u/SEU_USUARIO"

Troque codex por:

setup opencode
setup claude
setup json

Ferramentas MCP disponíveis

  • health: valida a configuração sem expor secrets.

  • search_subreddits: busca comunidades por termo.

  • get_subreddit_rules: lê regras do subreddit e aponta riscos.

  • preview_text_post: valida e mostra o post sem publicar.

  • submit_text_post: publica o post respeitando dry-run, allowlist, regras e rate limit.

Segurança por padrão

Nada é publicado por padrão:

REDDIT_DRY_RUN=true

Para publicar de verdade, só depois de testar:

npx -y github:osamuelnovaes/mcp-reddit-publisher install claude-code \
  --client-id "..." \
  --client-secret "..." \
  --refresh-token "..." \
  --user-agent "mcp-reddit-publisher/0.1.0 by u/SEU_USUARIO" \
  --dry-run false

Recomendações:

REDDIT_ALLOWED_SUBREDDITS=SideProject,saas,startups
REDDIT_REQUIRE_RULE_CHECK=true
REDDIT_MIN_SECONDS_BETWEEN_POSTS=300

Desenvolvimento local

git clone https://github.com/osamuelnovaes/mcp-reddit-publisher.git
cd mcp-reddit-publisher
npm install
npm run typecheck
npm test
npm run build
node scripts/smoke.mjs

Licença

MIT

Available Tools

5 tools
get_subreddit_rulesGet subreddit rulesB

Fetches subreddit rules and flags obvious promotional-posting risks.

Inputs: subreddit (required).

healthHealth checkA

Shows current configuration status without revealing secrets.

Inputs: no named parameters.

preview_text_postPreview text postC

Validates and previews a Reddit text post without publishing.

Inputs: subreddit (required), title (required), body (required), sendReplies, +3 more.

search_subredditsSearch subredditsB

Searches Reddit communities by query to help find audience fit before posting.

Inputs: query (required), limit.

submit_text_postSubmit text postB

Publishes a Reddit text post. By default REDDIT_DRY_RUN=true prevents real publishing; set false only after testing.

Inputs: subreddit (required), title (required), body (required), sendReplies, +4 more.

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

Loading tool schema changelog…

    TDQS

    A3.6/5.0

    Scored across 5 tools

    Disambiguation5/5

    Each tool has a distinct purpose: fetching subreddit rules, checking health, previewing a post, searching communities, and submitting a post. No tool overlaps in functionality.

    Naming Consistency4/5

    All tool names follow snake_case with a verb_noun pattern except for 'health', which is a single word but commonly accepted. Overall naming is consistent and predictable.

    Tool Count5/5

    With 5 tools, the server is well-scoped for the Reddit publishing domain. Each tool covers a necessary step in the workflow without being too few or excessive.

    Completeness4/5

    The tool set covers the core publishing workflow: search subreddits, check rules, preview, and submit. Missing features like deleting posts or handling other post types, but sufficient for text post publishing.

    Maintenance

    ActivityInactive
    ResponsivenessNo recent community issues

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