# Reddit Growth Mcp > No-API-key Reddit growth toolkit — MCP server + CLI. Rank subreddits by growth & mod-removal safety, read each community's viral recipe, and score a draft before posting, all from the public archive. - **Type:** MCP server - **Install:** `agentstack add mcp-latent-9-reddit-growth-mcp` - **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior - **Seller:** [latent-9](https://agentstack.voostack.com/s/latent-9) - **Installs:** 0 - **Category:** [Data & Analytics](https://agentstack.voostack.com/c/data-and-analytics) - **Latest version:** 0.1.0 - **License:** MIT - **Upstream author:** [latent-9](https://github.com/latent-9) - **Source:** https://github.com/latent-9/reddit-growth-mcp ## Install ```sh agentstack add mcp-latent-9-reddit-growth-mcp ``` Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent. ## About Reddit Growth MCP Find where to post, learn each subreddit's viral recipe, and score your draft before you publish — no Reddit API key required. One command each: plan where to post, draft to score a post before you publish, and compare to rank subreddits by removal risk. ▶ Watch the full-quality 30s MP4 Reddit Growth MCP turns a list of subreddits into a plan — **where** to post, **what** to post, and **when** — by reading each community's format, flair, timing, and keyword recipe from a public historical archive. The whole core workflow runs with no account or API key. It works as an MCP server (for Claude, Cursor, and other MCP clients) and as a standalone command-line tool. > **Built by a [Top 1% Poster in r/ClaudeAI](https://www.reddit.com/user/Oliveaniss_/)** — the > heuristics here encode what actually gets upvoted and what gets removed, not guesswork. ## Quick start Requirements: Python 3.11+ and [uv](https://docs.astral.sh/uv/). No Reddit account or API keys are needed to get started. Install from PyPI: ```bash uvx reddit-growth-mcp # run the MCP server instantly pipx install reddit-growth-mcp # or install the CLI + server reddit-growth plan singularity LocalLLaMA mcp # your first growth plan ``` Or from a clone (for development): ```bash uv sync # install dependencies uv run python -m src.cli plan singularity LocalLLaMA mcp # your first growth plan ``` That prints where to post, what to post, and when — using only the public archive. Every command has the form `uv run python -m src.cli [options]` (shown throughout as `reddit-growth `, which is the installed alias). Add `-h` to any command for help, e.g. `uv run python -m src.cli plan -h`. If you activate the virtualenv directly (`source .venv/bin/activate`) and zsh still reports `command not found: reddit-growth`, run `rehash` — zsh caches command locations at startup and needs a nudge after the venv is added to PATH. Opening a new terminal also works, or call the binary by path without activating: `.venv/bin/reddit-growth plan singularity LocalLLaMA mcp`. ### Interactive launcher Prefer a menu to flags? Run: ```bash bash scripts/menu.sh ``` Pick a mode (plan, compare, patterns, draft, …), choose subreddits from a searchable preset list, and it runs the command for you — all in one window. With [gum](https://github.com/charmbracelet/gum) installed you get an arrow-key TUI with fuzzy search; otherwise it falls back to a numbered menu. Type `h` for a built-in guide. ## What it answers - Which subreddits fit my topic, and how much reach do they have? - Will my post survive here, or does this community remove a lot of posts? - What actually performs here: which format, title style, timing, and flair? - Given a specific draft, how is it likely to do, and how do I improve it? ## See it work `compare` ranks candidate subreddits by growth, viral ceiling, discussion, and removal risk — so you post where you'll be seen and skip communities that remove most submissions (note r/ClaudeAI below: 96% removed, strict): `patterns` reads one community's viral recipe — the media types, hours, days, flairs, and keywords that actually perform, ranked by median so a single lucky post can't crown a category: Figures are live estimates from a sample and shift over time — run the commands yourself for current numbers. ## Tools | Tool | Purpose | Needs credentials | | --- | --- | --- | | `analyze_post_patterns` | What performs in a sub: timing, media, title style, flair, keywords, by a configurable metric | No | | `analyze_acceptance` | Removal rate and what tends to get removed; official rules when credentials are present | No | | `compare_subreddits` | Rank subreddits by growth (typical reach + viral upside), with traffic (posts/day), discussion, removal risk, and a safety label; `rank_by` switches to viral/opportunity/insight | No | | `analyze_insight` | Discussion depth (comment substance) plus a heuristic sentiment read (supportive/mixed/critical) — not just comment count | No | | `growth_plan` | One call: safest strong target, cross-post options, viral recipe, and best posting times | No | | `evaluate_draft` | Predict a draft's performance (0-100) and acceptance risk, with drivers and fixes | No | | `evaluate_draft_across` | Score one draft across subs, ranked by size-fair fit (percentile) vs raw reach | No | | `analyze_subreddit` | Estimate a subreddit's activity (posts/day); uses the archive without credentials | No | | `find_target_subreddits_tool` | Discover and rank subreddits for topics by estimated traffic | Yes | | `fetch_posts`, `fetch_multiple`, `search_subreddit`, `fetch_comments` | Raw data access | Yes | The analysis tools are subreddit-agnostic — they work on any archived sub. The launcher ships 40+ presets across AI, dev, and startup communities (`ChatGPT`, `DeepSeek`, `LocalLLaMA`, `StableDiffusion`, `SaaS`, `indiehackers`, …). ## Data sources - PRAW for live Reddit access (read-only). Requires API credentials. - Arctic Shift (https://github.com/ArthurHeitmann/arctic_shift), a public historical archive and the successor to Pushshift. Requires no credentials. Removal detection follows the reveddit approach: the archive records what was posted, and moderator removals are read from that record. When Reddit credentials are available, `analyze_acceptance` performs an accurate live diff (archive vs. current Reddit) to resolve ambiguous cases; without credentials it runs archive-only and flags its confidence. ## Reddit credentials (optional) Everything above works with no account. Credentials only unlock the credential-only tools (raw data access, `find_target_subreddits_tool`) and the accurate live-removal check. Create a "script" app at https://www.reddit.com/prefs/apps, then: ```bash cp .env.sample .env # REDDIT_CLIENT_ID=... # REDDIT_CLIENT_SECRET=... # REDDIT_USER_AGENT=reddit-growth-mcp/0.2.1 by u/your_username ``` ## Command-line usage Every command runs credential-free from the archive. The commands are: `traffic`, `insight`, `patterns`, `acceptance`, `compare`, `plan`, `report`, `draft`, and `fit` (run `-h` on any of them for options). ```bash uv run python -m src.cli traffic LocalLLaMA uv run python -m src.cli insight mcp uv run python -m src.cli patterns Fedora --time month uv run python -m src.cli patterns commandline --metric discussion uv run python -m src.cli acceptance technology uv run python -m src.cli compare Fedora gnome linux uv run python -m src.cli plan singularity LocalLLaMA mcp --tz 7 uv run python -m src.cli draft ClaudeAI --title "I built an ASCII art tool" --type image uv run python -m src.cli fit singularity LocalLLaMA mcp --title "..." --type video ``` `fit` scores one draft across several subreddits and ranks by a size-fair fit (the draft's percentile within each sub's own score distribution) alongside raw expected reach, so a small sub where the post lands in the top decile isn't buried by a big sub's larger absolute numbers. Add `--json` to any command for raw output. Time-based commands (`patterns`, `plan`, `draft`, `fit`, `report`) accept `--time day|week|month|year|all` — shorter is fresher but a smaller sample. `patterns` accepts `--metric`: - `score`: upvotes (reach). - `comments`: comment volume. - `discussion`: comments per upvote, a proxy for genuine engagement rather than drive-by upvotes. - `quality`: upvotes damped by a clickbait penalty. ## Use as an MCP server Register the server once (Claude Code shown): ```bash claude mcp add reddit-growth-mcp -- uvx reddit-growth-mcp ``` For Cline, Cursor, Claude Desktop, and other clients, add it to the MCP settings JSON (no separate install — `uvx` fetches it from PyPI): ```json { "mcpServers": { "reddit-growth": { "command": "uvx", "args": ["reddit-growth-mcp"] } } } ``` Then ask in natural language, for example "analyze what performs in r/Fedora" or "will this title get accepted in r/linux?" The client calls the tools. For the full flow in one step, ask for a growth plan ("build a growth plan for r/singularity, r/LocalLLaMA, r/mcp") to invoke `growth_plan`, or select the `reddit_growth` prompt, which guides the assistant through finding a safe high-traffic subreddit and crafting a post that fits its viral recipe. To run the server directly over stdio: ```bash uv run python -m src.server ``` ### Docker The server also ships as a container (stdio transport): ```bash docker build -t reddit-growth-mcp . docker run -i --rm reddit-growth-mcp # with credentials: docker run -i --rm -e REDDIT_CLIENT_ID=... -e REDDIT_CLIENT_SECRET=... reddit-growth-mcp ``` ## Targeting workflow To find where to post for growth, `compare_subreddits` reports, per subreddit: - viral potential (90th-percentile reach adjusted for removal risk) and ceiling, - posts per day (a credential-free traffic proxy), - typical discussion (median comments), - removal rate and a safety label (safe / moderate / strict), so you can avoid communities that remove most posts. A typical flow: `compare` to shortlist safe, high-traffic, high-ceiling subs, then `patterns` to read the viral recipe, then `evaluate_draft` to score a draft against it before posting. Reach and insight are different goals. `compare` counts comments (volume); `analyze_insight` measures their *depth* — median comment length and the share of substantive comments. A sub can have many short one-line replies (high volume, low insight) or fewer long technical comments (low volume, high insight). Use reach-oriented ranking for visibility, and `analyze_insight` to find where thoughtful discussion happens and reputation is built. ## Accuracy and methodology The tool is built to avoid the common failure modes of naive Reddit analytics. - Robust central tendency. Categories (media, flair, time) are ranked by the median, with the mean shown for reference, so a single viral post cannot crown a category. - Minimum-sample gating. A category or time bucket must contain enough posts to be reported as "best". Small buckets are not treated as reliable signals, and draft scoring ignores title signals whose with/without groups are too small, so a single lucky post cannot swing a projection or seed a bogus suggestion. - Confidence labelling. Each pattern report states a confidence level based on its sample size, and each acceptance report states a reliability level. - Settled scores. Archived scores stabilise after roughly 36 hours, so analysis excludes the most recent two days. - AutoMod awareness. Posts that were only AutoMod-filtered at capture time are treated as uncertain, not confirmed removals, because they are frequently approved later. On AutoMod-heavy subreddits this is flagged, and an accurate live check requires credentials. - Removal-aware verdicts. A draft's acceptance verdict folds in the sub's base removal rate, so a compliant post in a subreddit that removes most of what it gets is flagged risky rather than "likely accepted". - Anti-clickbait. Clickbait titles are detected (hype phrases, shouted words, emoji and punctuation spam), and each report states whether the community actually rewards or penalises clickbait, so guidance never pushes you toward it. `evaluate_draft` penalises a clickbaity draft only where the sub dislikes it. ## Limitations - Traffic figures are estimates. Reddit does not expose true daily visitor counts through its public API. - Findings are correlations from a sample, not Reddit's ranking algorithm and not a guarantee of performance. - AutoModerator configuration is private. Karma and account-age gates are inferred from rule text and require credentials to read. ## Development ```bash uv sync --extra dev uv run pytest -q # tests uv run ruff check src tests # lint uv run ruff format src tests # format ``` CI runs the lint, format check, and tests on every push and pull request. The analysis logic lives in `src/analysis/` (traffic, acceptance, patterns, draft, compare, arctic, helpers). The MCP surface is `src/server.py` and the CLI is `src/cli.py`. ## License MIT mcp-name: io.github.latent-9/reddit-growth-mcp ## Source & license This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code. - **Author:** [latent-9](https://github.com/latent-9) - **Source:** [latent-9/reddit-growth-mcp](https://github.com/latent-9/reddit-growth-mcp) - **License:** MIT Install and usage instructions live in the source repository linked above. ## Pricing - **Free** — Free ## Security capabilities Automated source analysis of v0.1.0 — what this tool can access: - **Network access:** no - **Filesystem access:** no - **Shell / process execution:** no - **Environment & secrets:** yes - **Dynamic code execution:** no *"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.* ## Versions - **0.1.0** — security scan: passed — Imported from the upstream source. ## Links - Listing page: https://agentstack.voostack.com/l/mcp-latent-9-reddit-growth-mcp - Seller: https://agentstack.voostack.com/s/latent-9 - Browse the marketplace: https://agentstack.voostack.com/browse --- Listed on AgentStack — the marketplace for AI agent skills and MCP servers. 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