Caravan

by Degrudv · remote · no sign-in to list tools · v0.0.0 · published by GitHub user Degrudv

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

Deletes · 2Final · 1Changes · 4

Compare Registry entry

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

Scanned Oct 21, 2026

Deletes or cancels2Claude Code: deny: see these tools
Can't be undone1Claude Code: ask: see these tools
Changes things4Claude Code: ask: see these tools
Only reads2Claude Code: allow: see these tools

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http caravan https://caravan-mcp-server.degrudv.workers.dev/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

9 tools

Deletes or cancels 2Removes, cancels or revokes something.Claude 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 1Sends, pays, publishes or merges: once done, it cannot be taken back.Claude 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 4Creates or changes something that can be changed back.Claude 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 2Looks things up and changes nothing.Claude Code: allow

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.; caravan_attest
caravan_check_pools
caravan_commit
caravan_get_match_status
caravan_pay_reveal
caravan_post_intent
caravan_post_offer
caravan_price_history
caravan_seller_onboard
Can send data out3: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.; caravan_post_intent
caravan_post_offer
caravan_seller_onboard

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.

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: none
RFC 9728 protected resource metadata: none
Authorization servers: none
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

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

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

Keep track

Get told when this server's tools change: a new tool, a new description, a new class.

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

An Atom feed. Works in any feed reader or Slack's RSS app.

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 →

Compare with other servers for the same product.

Source: MCP Registry. Synced Oct 21, 2026, 18:15 UTC.

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