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Caravan

io.github.Degrudv/caravanDegrudvstreamable-httpv0.0.0Scanned

Test-network group buying through nine buyer and seller tools.

9 tools: 2 can delete or cancel things, 1 do something that can't be undone, 4 change things and 2 only read.

Tools: 2 delete, 1 irreversible, 4 write, 2 read.
  • Reads private data · 0
  • Reads text others write · 9
  • Can send data out · 3
  • No findings

Tools listed without sign-in. Remote posture

Anlyon alternative

7 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.

9 tools

Deletes or cancels 2Claude Code: deny
  • caravan_commitSign or bond a test-network purchase commitment without exposing a private key to the server.Reads text others writeNo findings

    Why it is in this group

    • The name "caravan_commit" says "commit": a word for a change.
    • The server marks it destructive (destructiveHint: true).

    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
    Sign or bond a test-network purchase commitment without exposing a private key to the server. EXPERIMENTAL — TEST NETWORK ONLY — NOT A FINANCIAL PRODUCT OR SERVICE — NO REAL FUNDS — AS IS, NO WARRANTY, NO LIABILITY — USE AT YOUR OWN RISK

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: true
    • idempotentHint: false
    • openWorldHint: true
  • caravan_pay_revealUse a Phase-0 payment rail to reveal the matched test-network manifest.Reads text others writeNo findings

    Why it is in this group

    • The name "caravan_pay_reveal" says "pay": a word that usually means money moves, which cannot be taken back.
    • The server marks it destructive (destructiveHint: true).

    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
    Use a Phase-0 payment rail to reveal the matched test-network manifest. EXPERIMENTAL — TEST NETWORK ONLY — NOT A FINANCIAL PRODUCT OR SERVICE — NO REAL FUNDS — AS IS, NO WARRANTY, NO LIABILITY — USE AT YOUR OWN RISK

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: true
    • idempotentHint: true
    • openWorldHint: true
Can't be undone 1Claude Code: ask
  • caravan_post_offerPublish test-network quantity tiers so verified capacity can compete for aggregated demand.Reads text others writeCan send data outNo findings

    Why it is in this group

    • The name "caravan_post_offer" says "post": a word for a change.
    • The description's first verb is "publish": a word for a change that another call does not undo.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    • outboundThe name "caravan_post_offer" says "post": it sends or publishes something to other people.
    Description, as the server wrote it
    Publish test-network quantity tiers so verified capacity can compete for aggregated demand. EXPERIMENTAL — TEST NETWORK ONLY — NOT A FINANCIAL PRODUCT OR SERVICE — NO REAL FUNDS — AS IS, NO WARRANTY, NO LIABILITY — USE AT YOUR OWN RISK

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
Changes things 4Claude Code: ask
  • caravan_attestCo-sign a test-network pool outcome to build portable completion evidence.Reads text others writeNo findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.

    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
    Co-sign a test-network pool outcome to build portable completion evidence. EXPERIMENTAL — TEST NETWORK ONLY — NOT A FINANCIAL PRODUCT OR SERVICE — NO REAL FUNDS — AS IS, NO WARRANTY, NO LIABILITY — USE AT YOUR OWN RISK

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • caravan_check_poolsCheck once whether a posted purchase intent has joined a better-priced forming pool.Reads text others writeNo 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.
    Description, as the server wrote it
    Check once whether a posted purchase intent has joined a better-priced forming pool. EXPERIMENTAL — TEST NETWORK ONLY — NOT A FINANCIAL PRODUCT OR SERVICE — NO REAL FUNDS — AS IS, NO WARRANTY, NO LIABILITY — USE AT YOUR OWN RISK

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • caravan_post_intentPost test-network demand so Caravan can aggregate it into a stronger group-buy.Reads text others writeCan send data outNo findings

    Why it is in this group

    • The name "caravan_post_intent" says "post": a word for a change.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    • outboundThe name "caravan_post_intent" says "post": it sends or publishes something to other people.
    Description, as the server wrote it
    Post test-network demand so Caravan can aggregate it into a stronger group-buy. EXPERIMENTAL — TEST NETWORK ONLY — NOT A FINANCIAL PRODUCT OR SERVICE — NO REAL FUNDS — AS IS, NO WARRANTY, NO LIABILITY — USE AT YOUR OWN RISK

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
  • caravan_seller_onboardLink a seller AgentCard and HTTPS domain proof before offering capacity.Reads text others writeCan send data outNo findings

    Why it is in this group

    • The description's first verb is "link": a word for a change.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    • outboundThe input takes a URL (input.card.endpoints): a request to a URL can carry data to whoever runs it.
    Description, as the server wrote it
    Link a seller AgentCard and HTTPS domain proof before offering capacity. EXPERIMENTAL — TEST NETWORK ONLY — NOT A FINANCIAL PRODUCT OR SERVICE — NO REAL FUNDS — AS IS, NO WARRANTY, NO LIABILITY — USE AT YOUR OWN RISK

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
Only reads 2Show 2 read-only tools
  • caravan_get_match_statusPoll a purchase intent until it matches or returns explainable failure reasons.Reads text others writeNo findings

    Why it is in this group

    • The name "caravan_get_match_status" says "get": 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
    Poll a purchase intent until it matches or returns explainable failure reasons. EXPERIMENTAL — TEST NETWORK ONLY — NOT A FINANCIAL PRODUCT OR SERVICE — NO REAL FUNDS — AS IS, NO WARRANTY, NO LIABILITY — USE AT YOUR OWN RISK

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • caravan_price_historyCompare privacy-safe historical discounts before deciding whether to join a pool.Reads text others writeNo findings

    Why it is in this group

    • The description's first verb is "compare": 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
    Compare privacy-safe historical discounts before deciding whether to join a pool. EXPERIMENTAL — TEST NETWORK ONLY — NOT A FINANCIAL PRODUCT OR SERVICE — NO REAL FUNDS — AS IS, NO WARRANTY, NO LIABILITY — USE AT YOUR OWN RISK

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • 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.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data.

Reads private data0
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write9
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out3
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, 14:51 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
7
Protocol version
2025-11-25
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
  • HighThe whole server

    The endpoint served tools/list without credentials, and the list has 7 tools that change things (2 destructive, 1 irreversible, 4 write). Whether a call also works without credentials was not tested: tools are never called.

    Matched text

    https://caravan-mcp-server.degrudv.workers.dev/mcp: tools/list returned 9 tools to an anonymous client, including caravan_pay_reveal (destructive), caravan_commit (destructive), caravan_post_offer (irreversible), caravan_check_pools (write), caravan_post_intent (write) and 2 more

    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 0.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http caravan https://caravan-mcp-server.degrudv.workers.dev/mcp
claude mcp add --transport http caravan https://caravan-mcp-server.degrudv.workers.dev/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__caravan__caravan_get_match_status",
      "mcp__caravan__caravan_price_history"
    ],
    "ask": [
      "mcp__caravan__caravan_check_pools",
      "mcp__caravan__caravan_post_intent",
      "mcp__caravan__caravan_attest",
      "mcp__caravan__caravan_post_offer",
      "mcp__caravan__caravan_seller_onboard"
    ],
    "deny": [
      "mcp__caravan__caravan_pay_reveal",
      "mcp__caravan__caravan_commit"
    ]
  }
}

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 caravan. Review it before you use it.

Capability tags behind 9 rules
  • mcp__caravan__caravan_check_pools untrusted-input
  • mcp__caravan__caravan_post_intent untrusted-input, outbound
  • mcp__caravan__caravan_get_match_status untrusted-input
  • mcp__caravan__caravan_pay_reveal untrusted-input
  • mcp__caravan__caravan_commit untrusted-input
  • mcp__caravan__caravan_attest untrusted-input
  • mcp__caravan__caravan_post_offer untrusted-input, outbound
  • mcp__caravan__caravan_seller_onboard untrusted-input, outbound
  • mcp__caravan__caravan_price_history 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.Degrudv/caravan/verify?hash=85f6f74e77947f4f0a9d4cb4d7630eff0eb70daefe1dab878dada92c8332311a" | jq -e '.changed == false'

Pinned hash 85f6f74e7794, from Oct 21, 2026, 19:07 UTC.

Watch

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

https://anlyon.dev/servers/io.github.Degrudv/caravan/changes.xml

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anlyon.dev badge for io.github.Degrudv/caravan
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Source: MCP Registry. Synced Oct 21, 2026, 18:15 UTC.