Oncast
fm.oncast/oncastoncast.fmstreamable-httpv1.0.0Scanned
Fact-checked news stories from Oncast's live AI radio: verified claims with source links.
4 tools: 1 change things and 3 only read.
- Reads private data · 1
- Reads text others write · 3
- Can send data out · 1
- 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.
4 tools
Changes things 1Claude Code: ask
latest_storiesLatest fact-checked Oncast stories.Reads text others writeCan send data outNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
- outboundThe input takes a destination (input.channel): what the tool writes goes there.
Description, as the server wrote it Latest fact-checked Oncast stories. Only claims that reached a verdict (TRUE, FALSE, or MISLEADING) and have an original source link are included. Every story has source links and an oncast.fm URL: cite both. Call get_story for what the hosts said. This does not start a broadcast.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: true
Only reads 3Show 3 read-only tools
get_storyOne verified Oncast story: summary, fact-check verdict and notes, original source links, what the hosts said, published time, the oncast.fm story URL, and a listen link.Reads private dataReads text others writeNo findings
Why it is in this group
- The name "get_story" says "get": a word for reading.
What it can reach
- private-dataThe description's first sentence says "note": it reads notes.
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
- untrusted-inputThe description's first sentence says "url": it reads web pages, which anyone can write.
Description, as the server wrote it One verified Oncast story: summary, fact-check verdict and notes, original source links, what the hosts said, published time, the oncast.fm story URL, and a listen link. Cite the story URL and the sources.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: true
list_channelsList Oncast radio channels (English, and Tech and Money in Mexican Spanish).No findings
Why it is in this group
- The name "list_channels" says "list": a word for reading.
Description, as the server wrote it List Oncast radio channels (English, and Tech and Money in Mexican Spanish). Each channel includes its oncast.fm listen URL. No listener counts and no internal settings.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: false
search_storiesSearch recent verified Oncast stories by keyword.Reads text others writeNo findings
Why it is in this group
- The name "search_stories" says "search": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it Search recent verified Oncast stories by keyword. Matches titles, fact-check summaries, sources, and what the hosts said. Each hit includes source links and an oncast.fm URL. Cite both.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: true
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.
3 paths in this server alone from private data, through text someone else wrote, to a way out. Denying 1 outbound tool breaks every one.
- Reads private data1
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write3
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out1
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
{
"permissions": {
"deny": [
"mcp__oncast__latest_stories"
]
}
}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 oncast https://oncast.fm/mcpclaude mcp add --transport http oncast https://oncast.fm/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__oncast__list_channels",
"mcp__oncast__search_stories",
"mcp__oncast__get_story"
],
"ask": [
"mcp__oncast__latest_stories"
],
"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 oncast. Review it before you use it.
Capability tags behind 3 rules
- mcp__oncast__latest_stories untrusted-input, outbound
- mcp__oncast__search_stories untrusted-input
- mcp__oncast__get_story 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/fm.oncast/oncast/verify?hash=7ff50a48c80feb1b0942b940ea68b77c63a2431764eaec0a47f8e5151746e0cd" | jq -e '.changed == false'Pinned hash 7ff50a48c80f, from Nov 1, 2026, 20:18 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/fm.oncast/oncast/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/fm.oncast/oncast)Source: MCP Registry. Synced Nov 1, 2026, 21:18 UTC.