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FreeToken — LLM API discovery

link.freetoken/catalogfreetoken.linkstreamable-httpv1.0.0Scanned

LLM API discovery: access conditions, dated costs, sampled checks and keyless configs. Read-only.

6 tools: 2 change things and 4 only read.

Tools: 0 delete, 0 irreversible, 2 write, 4 read.
  • Reads private data · 0
  • Reads text others write · 0
  • Can send data out · 0
  • No findings

Tools listed without sign-in. Remote posture

Anlyon alternative

2 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 →
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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 2Claude Code: ask
  • estimate_costEstimate USD cost for ONE listed priceId and its exact billing scenario.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.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Estimate USD cost for ONE listed priceId and its exact billing scenario. inputMillion/outputMillion are millions of tokens, not individual tokens. Not a live quote, free quota calculation, or charge.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • export_keyless_configRender a keyless config for 1–5 exact catalog providerSlug/modelSlug pairs.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.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Render a keyless config for 1–5 exact catalog providerSlug/modelSlug pairs. Only environment variable references are returned. No keys, prompts, network calls, or file writes. Review compatibility before using.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
Only reads 4Show 4 read-only tools
  • get_provider_guideRead official application links, payment/identity conditions and existing application steps for a published provider.No findings

    Why it is in this group

    • The name "get_provider_guide" says "get": a word for reading.
    Description, as the server wrote it
    Read official application links, payment/identity conditions and existing application steps for a published provider. No signup or key generation is performed.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • get_route_statusRead existing sampled checks for public catalog routes.No findings

    Why it is in this group

    • The name "get_route_status" says "get": a word for reading.
    Description, as the server wrote it
    Read existing sampled checks for public catalog routes. No new checks run. Missing/stale evidence must not be interpreted as uptime or an outage. provider/model use catalog slugs.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • list_price_referencesList dated price reference IDs and billing scenarios for estimate_cost.No findings

    Why it is in this group

    • The name "list_price_references" says "list": a word for reading.
    Description, as the server wrote it
    List dated price reference IDs and billing scenarios for estimate_cost. This is a limited reference set, not complete market coverage or live quotes.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • search_modelsFilter the published catalog (substring search, not a benchmark or guarantee of free access).No findings

    Why it is in this group

    • The name "search_models" says "search": a word for reading.
    Description, as the server wrote it
    Filter the published catalog (substring search, not a benchmark or guarantee of free access). Returns exact provider/model slugs for subsequent tools, conditions, dates and source links.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false

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 private-data or untrusted-input or outbound.

Reads private data0
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write0
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.

Remote posture

What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.

Tools listed without sign-in

Looked at Oct 22, 2026, 15:10 UTC, unchanged since Oct 22, 2026. No credentials were sent and no tool was called. What is looked at.

Reachable
yes
HTTP status of an anonymous initialize
200
tools/list served without credentials
yes
Tools that change things, listed without credentials
2
Protocol version
2025-06-18
WWW-Authenticate on 401
not observed
resource_metadata in WWW-Authenticate
not observed
RFC 9728 protected resource metadata
not observed
Authorization servers
not observed
Legacy HTTP+SSE transport
no
Dynamic client registration
not observed
Client ID metadata documents
not observed
  • WarnThe whole server

    The endpoint served tools/list without credentials, and the list has 2 tools that change things (2 write). Whether a call also works without credentials was not tested: tools are never called.

    Matched text

    https://freetoken.link/mcp: tools/list returned 6 tools to an anonymous client, including estimate_cost (write), export_keyless_config (write)

    What this check looks for

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.

All changes to this server

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http catalog https://freetoken.link/mcp
claude mcp add --transport http catalog https://freetoken.link/mcp

Run 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.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__catalog__search_models",
      "mcp__catalog__get_provider_guide",
      "mcp__catalog__list_price_references",
      "mcp__catalog__get_route_status"
    ],
    "ask": [
      "mcp__catalog__estimate_cost",
      "mcp__catalog__export_keyless_config"
    ],
    "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 catalog. Review it before you use it.

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/link.freetoken/catalog/verify?hash=9e7a5cbe16abf4d7cd5a19f5191bd3592e20562b9e8fa4d52efe5276cd35b54a" | jq -e '.changed == false'

Pinned hash 9e7a5cbe16ab, from Oct 21, 2026, 19:18 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/link.freetoken/catalog/changes.xml

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Source: MCP Registry. Synced Oct 21, 2026, 18:53 UTC.