Argus API Spend

by argus.town · remote · no sign-in to list tools · v1.0.1 · published by town.argus

Track API spend, credit balances and runway across OpenAI, Anthropic, OpenRouter and 25 more.

Changes · 2

Compare Registry entry

10 tools: 2 change things and 8 only read.

Scanned Oct 21, 2026

Deletes or cancels0Claude Code: deny
Can't be undone0Claude Code: ask
Changes things2Claude Code: ask: see these tools
Only reads8Claude Code: allow: see these tools

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

claude mcp add --transport http argus https://api.argus.town/mcp --header 'Authorization: <your-authorization>'

Findings

Matches of fixed checks, with the text they matched.

1 info

Infoconnect_provider
The description mentions "credential".
Matched text
description: "...nnect a provider to THIS project with a credential. Validates the credential against the p..."
What this check looks for

Tools

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

10 tools

Changes things 2Creates or changes something that can be changed back.Claude Code: ask

connect_providerConnect a provider to THIS project with a credential.1 finding
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Findings
- Info
  The description mentions "credential".
  Matched text
  description: "...nnect a provider to THIS project with a credential. Validates the credential against the p..."
  What this check looks for
Description, as the server wrote it
Connect a provider to THIS project with a credential. Validates the credential against the provider before storing it (encrypted), then queues the initial sync. Args: provider (id from list_available_providers), secret (the provider API key), credential_type (optional), label (optional). Only pass secrets your operator gave you for this purpose.
sync_connectionQueue an immediate balance/usage/plan refresh for one connection.No findings
Why it is in this group
- The name "sync_connection" says "sync": a word for a change.
Description, as the server wrote it
Queue an immediate balance/usage/plan refresh for one connection. Args: connection_id.

Only reads 8Looks things up and changes nothing.Claude Code: allow

get_advisoriesAll current advisories (top-up, upgrade, near-limit, spend-spike) across providers.No findings
Why it is in this group
- The name "get_advisories" says "get": a word for reading.
Description, as the server wrote it
All current advisories (top-up, upgrade, near-limit, spend-spike) across providers.
get_cost_accuracyCost-accuracy state per provider: whether itemized costs are exact, estimated, or unreconciled, with the drift % between Argus's itemized total and the provider's own reported spen…No findings
Why it is in this group
- The name "get_cost_accuracy" says "get": a word for reading.
Description, as the server wrote it
Cost-accuracy state per provider: whether itemized costs are exact, estimated, or unreconciled, with the drift % between Argus's itemized total and the provider's own reported spend.
get_overviewCross-provider rollup: balance, burn rate, days-to-zero, month-to-date spend, projection, rate-limit headroom.No findings
Why it is in this group
- The name "get_overview" says "get": a word for reading.
Description, as the server wrote it
Cross-provider rollup: balance, burn rate, days-to-zero, month-to-date spend, projection, rate-limit headroom.
get_providerFull metrics + rate-limit snapshots for one connection id.No findings
Why it is in this group
- The name "get_provider" says "get": a word for reading.
Description, as the server wrote it
Full metrics + rate-limit snapshots for one connection id.
get_rate_limit_statusLatest rate-limit headroom and error rate across the org's providers.No findings
Why it is in this group
- The name "get_rate_limit_status" says "get": a word for reading.
Description, as the server wrote it
Latest rate-limit headroom and error rate across the org's providers.
get_request_costsRecent itemized per-request costs for a provider (model, tokens, cost in USD, provenance).No findings
Why it is in this group
- The name "get_request_costs" says "get": a word for reading.
Description, as the server wrote it
Recent itemized per-request costs for a provider (model, tokens, cost in USD, provenance). Args: provider (string), limit (number, default 25, max 100).
list_available_providersProviders that can be connected with an API key (poll plane).No findings
Why it is in this group
- The name "list_available_providers" says "list": a word for reading.
Description, as the server wrote it
Providers that can be connected with an API key (poll plane). Anything else can still be tracked by sending telemetry — see https://argus.town/docs/ingest.
list_connectionsList the org's connected providers and status.No findings
Why it is in this group
- The name "list_connections" says "list": a word for reading.
Description, as the server wrote it
List the org's connected providers and status.

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.

Looked at Oct 22, 2026, 15:14 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: 3
Protocol version: 2025-06-18
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

WarnThe whole server
The endpoint served tools/list without credentials, and the list has 3 tools that change things (3 write). Whether a call also works without credentials was not tested: tools are never called.
Matched text
https://api.argus.town/mcp: tools/list returned 12 tools to an anonymous client, including create_connect_link (write), connect_provider (write), sync_connection (write)
What this check looks for

Install

Pinned to version 1.0.1. Values in angle brackets are yours to fill in.

claude mcp add --transport http argus https://api.argus.town/mcp --header 'Authorization: <your-authorization>'

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__argus__list_connections",
      "mcp__argus__get_overview",
      "mcp__argus__get_provider",
      "mcp__argus__get_rate_limit_status",
      "mcp__argus__get_advisories",
      "mcp__argus__get_cost_accuracy",
      "mcp__argus__get_request_costs",
      "mcp__argus__list_available_providers"
    ],
    "ask": [
      "mcp__argus__connect_provider",
      "mcp__argus__sync_connection"
    ],
    "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 argus. Review it before you use it.

Keep track

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

https://anlyon.dev/servers/town.argus/argus/changes.xml

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

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 →

Compare with other servers for the same product.

Source: MCP Registry. Synced Oct 21, 2026, 18:55 UTC.

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