StackVersus: verified SaaS limits & pricing
io.github.congptvinadic-debug/stackversus-limitscongptvinadic-debugstreamable-httpv1.0.0Scanned
Verified SaaS prices, plan limits and rate limits (AI tools, LLM APIs, voice, scraping) with sources
6 tools: 1 change things and 5 only read.
- Reads private data · 1
- Reads text others write · 1
- Can send data out · 0
- No findings
Anlyon alternative
1 of these tools change something. Run those as governed actions.
Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.
Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.
Import an OpenAPI spec →Tools
Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.
6 tools
Changes things 1Claude Code: ask
recent_changesDated change log for the AI plan limits dataset: price moves, limit changes, new or removed plans, each with the vendor source.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Dated change log for the AI plan limits dataset: price moves, limit changes, new or removed plans, each with the vendor source. Defaults to the last 30 days.
Only reads 5Show 5 read-only tools
compare_toolsCompact side-by-side of 2 to 6 products: each plan with price and its headline limits or rates, free tier and overage policy, with check dates.No findings
Why it is in this group
- The name "compare_tools" says "compare": a word for reading.
Description, as the server wrote it Compact side-by-side of 2 to 6 products: each plan with price and its headline limits or rates, free tier and overage policy, with check dates. Ids as in list_tools.
get_toolFull verified record for a product: plans with prices, limits or rates with vendor quotes, free tier, overage policy, gotchas, source URLs and check date.No findings
Why it is in this group
- The name "get_tool" says "get": a word for reading.
Description, as the server wrote it Full verified record for a product: plans with prices, limits or rates with vendor quotes, free tier, overage policy, gotchas, source URLs and check date. Pass the tool id (e.g. "claude", "cursor", "vapi", "openai-api"); a name also works.
list_datasetsThe datasets this server holds (AI plan limits, SaaS usage limits, voice-agent $/min, AI media credits, search and scraping APIs, LLM APIs, email platforms...), with tool counts, l…Reads private dataReads text others writeNo findings
Why it is in this group
- The name "list_datasets" says "list": a word for reading.
What it can reach
- private-dataThe description's first sentence says "email": it reads mail.
- untrusted-inputThe description's first sentence says "email": it reads inbound email, which other people can write.
Description, as the server wrote it The datasets this server holds (AI plan limits, SaaS usage limits, voice-agent $/min, AI media credits, search and scraping APIs, LLM APIs, email platforms...), with tool counts, last update and page URL.
list_toolsVendors/products covered, with ids to pass to get_tool.No findings
Why it is in this group
- The name "list_tools" says "list": a word for reading.
Description, as the server wrote it Vendors/products covered, with ids to pass to get_tool. Optionally filter by dataset id from list_datasets.
search_limitsKeyword search across every plan, limit, rate and gotcha.No findings
Why it is in this group
- The name "search_limits" says "search": a word for reading.
Description, as the server wrote it Keyword search across every plan, limit, rate and gotcha. Returns matching rows with value, vendor quote, source URL and check date. Good first call for questions like "Cursor Pro requests per month", "Retell cost per minute", "Gemini API free tier RPM".
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
No private-data, untrusted-input, outbound path in this server alone: no tool is tagged outbound.
- Reads private data1
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write1
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out0
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Findings
Matches of fixed checks, with the text they matched.
No check matched anything in these tool definitions. That is not a safety guarantee.
History
Changes to its tool definitions and to its remote endpoint, newest first.
No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.
Install
Pinned to version 1.0.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http stackversus-limits https://getstackversus.com/api/mcpclaude mcp add --transport http stackversus-limits https://getstackversus.com/api/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__stackversus-limits__list_datasets",
"mcp__stackversus-limits__list_tools",
"mcp__stackversus-limits__get_tool",
"mcp__stackversus-limits__search_limits",
"mcp__stackversus-limits__compare_tools"
],
"ask": [
"mcp__stackversus-limits__recent_changes"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as stackversus-limits. Review it before you use it.
Capability tags behind 1 rule
- mcp__stackversus-limits__list_datasets private-data, untrusted-input
Pin
Keep the decision: fail CI when the tools change, follow every change, or show a badge.
Pin in CI
Fail a build when the tools you reviewed are not the tools the server serves today.
curl -s "https://anlyon.dev/api/v1/servers/io.github.congptvinadic-debug/stackversus-limits/verify?hash=f56a91bf108046e16f8f826ef5e7f7f13067a9545c6adaec258524eaceba010f" | jq -e '.changed == false'Pinned hash f56a91bf1080, from Oct 30, 2026, 10:17 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/io.github.congptvinadic-debug/stackversus-limits/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/io.github.congptvinadic-debug/stackversus-limits)Source: MCP Registry · repository. Synced Oct 30, 2026, 10:17 UTC.