SaaSCity

io.saascity由 saascity.io 發布官方發布者v2.1.0更新於 Nov 7, 2026

Audit your site, pick from 1,600+ launch directories by DR and link type, and list on SaaSCity.

已驗證Streamable HTTP可網頁執行網頁搜尋與抓取資料與分析商業與電商

概覽

AI 產生的概覽

稽核產品首頁、依 DR、連結類型與價格挑選上架目錄,並在 SaaSCity 上草擬產品收錄。

可以做什麼
  • 稽核首頁的上線就緒度,並檢查目錄頁面是否回連到你的網站
  • 依分類、Ahrefs DR、連結類型、價格與徽章要求搜尋、篩選並評估上架目錄
  • 草擬 SaaSCity 收錄、檢查徽章狀態,並查詢提交狀態與上架週次
  • 搜尋 SaaSCity 收錄、查看單筆詳情、排行榜以及同分類的替代產品
  • 計算 SaaS 指標:ARR、ARR 變動橋、流失率、NRR/GRR、40 法則、NPS、A/B 顯著性、加成與可用性
適用情境
適合在準備 SaaS 或 AI 產品上線時使用:提交目錄前修正首頁中繼資料、判斷哪些目錄值得付費、提交後核實外部連結,或快速做 SaaS 指標計算。
執行需求
透過 Streamable HTTP 連線遠端端點,無需帳號或 API 金鑰;也可用 npx 以 stdio 方式執行並轉送到託管伺服器。需要網路存取。依 IP 限流,例如 submit_project 每天 5 次、check_launch_readiness 每小時 20 次。
安裝前請注意
submit_project 只建立草稿並回傳認領連結;須由人工開啟連結、選擇方案並付款後才會發布或收費,且所有新收錄皆為付費。認領連結是草稿轉為收錄的唯一途徑。目錄的連結類型與價格可能未經核實而回傳 unknown。伺服器會讀取你提供的網址,目錄資料與 SaaSCity 的其他目錄網站共用。

安裝

在 SourceWeft 中

  1. 開啟 儀表板中的 SaaSCity,將其新增到工作區。
  2. 為需要使用其工具的對話啟用該服務。

Web executable,透過 Streamable HTTP。 遠端服務在工作區中設定後即可從網頁執行環境執行。

交給代理程式安裝

把這段提示詞貼上到 Claude Code、Codex、Cursor 等代理程式,或 SourceWeft 對話中。代理程式會讀取該伺服器的安裝指南,先向你展示發布者、端點和登入方式,經你同意後再把它新增到你的客戶端。金鑰不會寫進任何命令。

閱讀 https://sourceweft.com/mcp/io.saascity%2Fsaascity/install.md,並按其中說明把這個 MCP 伺服器接入我的客戶端。修改任何設定之前,先告訴我它的發布者、端點和登入方式,等我確認。不要把 API 金鑰寫進命令或我會提交的檔案;問我金鑰應從哪裡取得。

檢視代理程式所依據的安裝指南

其他 MCP 客戶端

把它新增到你客戶端的 mcpServers 設定中。

{
  "mcpServers": {
    "saascity": {
      "type": "http",
      "url": "https://saascity.io/api/mcp"
    }
  }
}

README

SaaSCity MCP server

An MCP server for launching a product. Your AI agent can audit your homepage before launch, pick launch directories out of 1,600+ with Ahrefs DR, link type and price, and list the product on SaaSCity.

  • Remote, keyless: https://saascity.io/api/mcp (Streamable HTTP). No account, no API key.
  • Stdio: npx -y saascity-mcp for clients that only run local servers. It forwards to the hosted server.
  • Protocol: MCP 2026-07-28 (stateless) and the initialize-based versions 2025-11-25, 2025-06-18, 2025-03-26 and 2024-11-05, all on one endpoint.

Built by SaaSCity, the launch directory for SaaS and AI tools. Full docs: saascity.io/mcp

Install

Claude Code

bash
claude mcp add --transport http saascity https://saascity.io/api/mcp

Claude Desktop, Cursor, Windsurf, VS Code and other clients with mcpServers JSON

json
{  "mcpServers": {    "saascity": {      "type": "http",      "url": "https://saascity.io/api/mcp"    }  }}

Stdio-only clients

json
{  "mcpServers": {    "saascity": {      "command": "npx",      "args": ["-y", "saascity-mcp"]    }  }}

It also runs straight from GitHub: npx -y github:nyyhao/saascity-mcp.

Hermes Agent

The plugin/ folder is a portable Agent Plugins package with this server and a launch-planning skill. See plugin/README.md.

Tools

ToolWhat it does
check_launch_readinessAudits a homepage the way directory scrapers and link-preview bots see it: HTTPS, noindex, title, meta description, og:image (fetched to confirm it loads), X card, favicon, canonical, viewport, h1, JSON-LD, robots.txt, sitemap, parked or 404 pages, response time, and pages that are empty without JavaScript. Returns a 0-100 score, a verdict and a fix for each problem.
recommend_launch_directoriesHand-picked directories for SaaS, AI or developer tools, grouped by when to submit. Each pick has a human-written verdict, including the ones not worth paying for.
find_launch_directoriesFilters the full dataset (1,600+ startup, SaaS and AI directories) by category, minimum DR, dofollow/nofollow, price and badge-swap requirement. Unverified fields come back as unknown instead of a guess.
get_launch_directoryLooks up one directory by domain or URL before you pay for a listing.
submit_projectLists a product on SaaSCity as an inert draft and returns a claim link. Nothing is published or charged until a human opens it, picks a plan and pays, and every listing is reviewed by a person.
check_badgeChecks whether the SaaSCity badge is live on a site (a verified badge makes the listing link dofollow).
get_submission_statusWhere a submission stands, by claim token or listing slug.
get_launch_weeksThe next 12 weekly launches. Every new listing is paid and can take any of them.
get_offersListing plans and current prices.
search_listingsSearches products listed on SaaSCity by keyword and category.
get_listingOne listing in full.
get_leaderboardMost upvoted launches this week, in the last 30 days, or all time.
find_alternativesOther listings in the same category as a given one.
calculate_arr, calculate_arr_bridge, calculate_churn, calculate_nrr, rule_of_40, calculate_nps, ab_test_significance, markup_margin, uptime_downtimeSaaS metric calculators. They compute from the numbers you pass and read no data.
check_backlinkChecks whether a directory listing page links to your site and whether the link is followed: rel nofollow/ugc/sponsored, hidden links, links that only go through the directory's redirect, and page-level noindex, nofollow and canonical. Reads static HTML.

Every tool declares an outputSchema and returns structuredContent next to its text, plus readOnlyHint and the other behavior hints. Only submit_project writes anything, and it writes only a draft.

Prompts

  • plan_launch (website_url, product_type): audit, fix the blockers, pick directories, produce a dated launch checklist.
  • submit_to_saascity (website_url): draft a listing from the site, confirm it with you, then submit it.

Try it

Check if https://example.com is ready to launch, then give me a two-week launch plan for an AI tool using free dofollow directories.

Is uneed.best worth it? What's its DR and is the link dofollow?

List my product on SaaSCity. The site is https://example.com.

Data and limits

  • DR is Ahrefs Domain Rating. drCheckedAt is the date of its last recheck, or null when the value comes from the last sweep of the list. Link type and price come from checks against the live sites, dated by dataUpdatedAt. Rows nobody has verified say unknown.
  • The data is the same as on Best SaaS Directories and Best AI Directories.
  • Rate limits are per IP: submit_project 5 per day, check_launch_readiness 20 per hour, check_badge 30 per hour, check_backlink 60 per hour, everything else 30-60 per minute.
  • The server keeps no session and needs no cookies. The claim link from submit_project is the only way a draft becomes a listing.

Self-check

bash
curl -s https://saascity.io/api/mcp \  -H 'content-type: application/json' \  -H 'mcp-protocol-version: 2025-11-25' \  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

License

MIT for this bridge. The directory data is served by saascity.io and is not part of this repository.

來源:README.md,提交 cba6b8a

工具

23

check_launch_readiness

Check launch readiness

Audit a product homepage before launching it: HTTPS, noindex, title and meta description, og:image (fetched to confirm it loads), X card, favicon, canonical, mobile viewport, h1, JSON-LD, robots.txt, sitemap, parked or 404 pages, response time, and whether the page is empty without JavaScript. Returns a 0-100 score, a verdict and a fix for every problem. Reads the static HTML the way directory scrapers and link-preview bots do.

輸入參數url必填

recommend_launch_directories

Recommend launch directories

Hand-picked launch directories for a product type, grouped by when to submit (launch day first, evergreen after). Every pick carries a human-written verdict, including the ones that are not worth paying for, plus Ahrefs DR, link type and price. Start here; use find_launch_directories to go wider across all 1,667 sites.

輸入參數free_onlyproduct_type

find_launch_directories

Find launch directories

Filter 1,667 startup, SaaS and AI directories by category, minimum Ahrefs DR, link type (dofollow/nofollow), price and badge-swap requirement. Returns submit URLs. Link type and price are "unknown" where nobody has verified them yet - treat those as unverified, not as free or dofollow.

輸入參數sortlimitquerymin_droffsetpricingcategorylink_typeexclude_badge_exchange

get_launch_directory

Look up a launch directory

Look up one directory by domain or URL: Ahrefs DR, dofollow or nofollow, price, whether it wants a badge swap, the submit URL, and a human verdict where one exists. Use it to vet a directory before paying for a listing.

輸入參數domain必填

submit_project

Submit a project to SaaSCity

List a product on the SaaSCity launch directory. Creates an inert draft and returns a claim URL; the human opens it to sign in, gets the submit form prefilled with the draft, picks a plan and a launch Monday and submits the form. Nothing is submitted, published or charged until they submit that form, and every listing is reviewed by a person. Every new listing is paid (see get_offers), and only the human pays. Free subdomain hosts (github.io, netlify.app...) and domains that already have a listing are refused.

輸入參數tagstitle必填tagline必填category必填github_urldescription必填twitter_urlwebsite_url必填

check_badge

Check the SaaSCity badge

Check whether the SaaSCity badge is live on a site. Reads the given URL and, for a deep page, the site homepage too, rendering JavaScript if the static HTML misses it. A verified badge keeps a free listing booked before November 6, 2026 on a dofollow link. A paid listing needs no badge.

輸入參數url必填

get_submission_status

Get submission status

Where a SaaSCity submission stands. By claim token: unclaimed, expired, claimed but the form not submitted yet, submitted and waiting for payment, submitted and in review, rejected, archived, or live. By slug: a live listing (launch week, badge, link type, points).

輸入參數slugclaim_token

get_launch_weeks

Get launch weeks

SaaSCity launch weeks: the next 12 Mondays. A round opens each Monday at 00:00 UTC, and a paid listing can take any of them.

無需輸入參數。

get_offers

Get listing offers

SaaSCity listing offers with real prices - Basic listing and Premium listing - and exactly what each buys (dofollow link, city-map building, launch review). Every new listing is paid. Only a human can pay, on the claim page.

無需輸入參數。

search_listings

Search SaaSCity listings

Search products listed on SaaSCity by keyword and/or category. Returns title, tagline, category, upvote points, the listing page and the product site. Useful for market research ("what else exists in this space?") before a launch.

輸入參數sortlimitqueryoffsetcategory

get_listing

Get a SaaSCity listing

One live SaaSCity listing by slug: title, tagline, full description, category, upvote points, link type (dofollow/nofollow), listing page and product site.

輸入參數slug必填

get_leaderboard

Get the launch leaderboard

SaaSCity's most upvoted launches for this week's launch, the last 30 days, or all time, optionally within one category.

輸入參數limitperiodcategory

find_alternatives

Find alternatives to a listing

Other SaaSCity listings in the same category as a given listing, most upvoted first. Useful for competitor research and positioning.

輸入參數slug必填limit

calculate_arr

Calculate ARR from MRR

Turn monthly recurring revenue into annual recurring revenue (ARR = MRR x 12), with ARPU when the customer count is given and the months to $100k, $1M and $10M ARR at a monthly growth rate. Count annual plans at their yearly price divided by 12 and leave one-time fees out of MRR. Full calculator: https://saascity.io/free-tools/arr-calculator

輸入參數mrr必填customersmonthly_growth_pct

calculate_arr_bridge

ARR bridge: new, expansion, contraction, churn

Explain how ARR moved over a period: ending ARR = starting ARR + new + expansion - contraction - churned. Returns net new ARR, growth, the SaaS quick ratio ((new + expansion) / (contraction + churned)), and net and gross revenue retention of the starting base. Full calculator: https://saascity.io/free-tools/arr-calculator

輸入參數new_arrstart_arr必填churned_arrexpansion_arrcontraction_arr

calculate_churn

Customer churn rate

Customer churn and retention for a period, its monthly and annual equivalents (compounded, so 5% a month is about 46% a year, not 60%), and the average customer lifetime. Full calculator: https://saascity.io/free-tools/churn-rate-calculator

輸入參數periodcustomers_lost必填customers_at_start必填

calculate_nrr

Net and gross revenue retention

Net revenue retention (NRR) and gross revenue retention (GRR) of a group of customers from their starting MRR, expansion, contraction and churned MRR, with annualised figures. Full calculator: https://saascity.io/free-tools/net-revenue-retention-calculator

輸入參數periodstart_mrr必填churned_mrrexpansion_mrrcontraction_mrr

rule_of_40

Rule of 40 and SaaS efficiency

Rule of 40 score (revenue growth % + profit margin %), plus the magic number, burn multiple and SaaS quick ratio when their inputs are given. Full calculator: https://saascity.io/free-tools/rule-of-40-calculator

輸入參數new_mrrnet_burngrowth_pct必填margin_pct必填churned_mrrnet_new_arrexpansion_mrrcontraction_mrrrevenue_last_quarterrevenue_this_quartersales_marketing_last_quarter

calculate_nps

Net Promoter Score

Net Promoter Score from the counts of promoters (9-10), passives (7-8) and detractors (0-6), with the margin of error at 95% confidence. Full calculator: https://saascity.io/free-tools/nps-calculator

輸入參數passives必填promoters必填detractors必填

ab_test_significance

A/B test significance

Two-proportion test of an A/B result: conversion rates, relative uplift, p-value, confidence interval, the chance that B beats A, and a sample ratio mismatch check. Full calculator: https://saascity.io/free-tools/ab-test-calculator

輸入參數visitors_a必填visitors_b必填conversions_a必填conversions_b必填confidence_pct

markup_margin

Markup and margin

Selling price, profit and margin from a cost and a markup percent, or markup and margin from a cost and a selling price. Full calculator: https://saascity.io/free-tools/markup-calculator

輸入參數cost必填pricemarkup_pct

uptime_downtime

SLA uptime to allowed downtime

Allowed downtime per day, week, month, quarter and year, in seconds, for an availability target such as 99.9%. Full calculator: https://saascity.io/free-tools/uptime-calculator

輸入參數availability_pct必填

版本歷史

2
  1. v2.1.0最新Nov 7, 2026
  2. v2.0.0Sep 23, 2026

評分

已滿足適用檢查項的 100%

該評分衡量此收錄條目的完整程度,依據註冊中心條目、端點與公開來源計算得出。它不是對伺服器本身的評價,也不表示伺服器安全或目前可用:可連通性是帶日期的檢查結果,評分也不包含安裝量或使用者評價。

  • 近 30 天內可連通必需25 分
  • 已宣告認證方式必需10 分
  • 已列出工具必需15 分
  • 描述必需15 分
  • 圖示10 分
  • 文件15 分
  • 授權條款10 分

其他 Saascity 整合