SaaSCity

io.saascity由 saascity.io 发布官方发布者v2.1.0更新于 Nov 7, 2026

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

已验证Streamable HTTP可网页运行网页搜索与抓取数据与分析商业与电商

概览

AI 生成的概览

审计产品首页、按 DR、链接类型和价格挑选发布目录,并在 SaaSCity 上起草产品收录。

可以做什么
  • 审计首页的发布就绪度,并检查目录页面是否回链到你的站点
  • 按分类、Ahrefs DR、链接类型、价格和徽章要求搜索、筛选并评估发布目录
  • 起草 SaaSCity 收录、检查徽章状态,并查询提交状态与发布周次
  • 搜索 SaaSCity 收录、查看单条详情、排行榜以及同分类的替代产品
  • 计算 SaaS 指标:ARR、ARR 变动桥、流失率、NRR/GRR、40 法则、NPS、A/B 显著性、加价与可用性
适用场景
适合在准备 SaaS 或 AI 产品发布时使用:提交目录前修正首页元数据、判断哪些目录值得付费、提交后核实外链,或快速做 SaaS 指标计算。
运行要求
通过 Streamable HTTP 连接远程端点,无需账号或 API 密钥;也可用 npx 以 stdio 方式运行并转发到托管服务器。需要网络访问。按 IP 限流,例如 submit_project 每天 5 次、check_launch_readiness 每小时 20 次。
安装前请注意
submit_project 只创建草稿并返回认领链接;需由人工打开链接、选择方案并付款后才会发布或收费,且所有新收录均为付费。认领链接是草稿转为收录的唯一途径。目录的链接类型和价格可能未经核实而返回 unknown。服务器会读取你提供的网址,目录数据与 SaaSCity 的其他目录站点共用。

安装

在 SourceWeft 中

  1. 打开 控制台中的 SaaSCity,将其添加到工作区。
  2. 为需要使用其工具的对话启用该服务。

Web executable,通过 Streamable HTTP。 远程服务在工作区中配置后即可从网页运行时运行。

交给智能体安装

把这段提示词粘贴到 Claude Code、Codex、Cursor 等智能体,或 SourceWeft 对话中。智能体会读取该服务器的安装指南,先向你展示发布者、端点和登录方式,经你同意后再把它添加到你的客户端。密钥不会写进任何命令。

阅读 https://sourceweft.com/mcp/io.saascity%2Fsaascity/install.md,并按其中说明把这个 MCP 服务器接入我的客户端。修改任何配置之前,先告诉我它的发布者、端点和登录方式,等我确认。不要把 API 密钥写进命令或我会提交的文件;问我密钥应从哪里获取。

查看智能体所依据的安装指南

其他 MCP 客户端

把它添加到你客户端的 mcpServers 配置中。

{
  "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.

来源: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.

输入参数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.

输入参数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.

输入参数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.

输入参数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.

输入参数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.

输入参数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).

输入参数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.

无需输入参数。

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.

无需输入参数。

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.

输入参数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.

输入参数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.

输入参数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.

输入参数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

输入参数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

输入参数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

输入参数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

输入参数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

输入参数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

输入参数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

输入参数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

输入参数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

输入参数availability_pct必填

版本历史

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

评分

已满足适用检查项的 100%

该评分衡量此收录条目的完整程度,依据注册中心条目、端点与公开来源计算得出。它不是对服务器本身的评价,也不表示服务器安全或当前可用:可连通性是带日期的检查结果,评分也不包含安装量或用户评价。

  • 近 30 天内可连通必需25 分
  • 已声明认证方式必需10 分
  • 已列出工具必需15 分
  • 描述必需15 分
  • 图标10 分
  • 文档15 分
  • 许可证10 分

其他 Saascity 集成