$ ~/registry/skill/composiohq-composio-skills-coinmarketcal-automation

SKILL

coinmarketcal-automation

Name: coinmarketcal-automation
Author: Composio

Automate Coinmarketcal queries and event workflows through Rube MCP.

Stars

★ 67,763

Source

GitHub

Updated

2026-07-15

// securityCaution

Prompt only, no code
Open source
Community-trusted· 64.7k

Summary

This skill appears to be primarily operational guidance for Rube MCP/Composio. Based on the materials, it is a prompt-only skill in an open-source repository with no declared local execution, direct API key requirement, or fixed remote endpoint. Overall risk is low, but actual capabilities depend on external MCP tools and subsequent connection authorization, so users should still verify Rube/Composio data flows and granted access.

CredentialsCaution

The material says 'No API keys needed,' but it also requires an ACTIVE Coinmarketcal connection via `RUBE_MANAGE_CONNECTIONS` and an external auth link, which suggests credentials are likely brokered by the Rube/Composio connection layer rather than truly absent. The skill does not directly request secrets and shows no explicit credential-abuse red flags, but users should review the scope of the external authorization.

Network egressCaution

The README explicitly requires connecting to `https://rube.app/mcp` and performing remote operations through the Composio/Coinmarketcal toolchain. Although the system field says there is no remote endpoint, the documentation shows that it at least connects to Rube MCP and may access Coinmarketcal through it. No unrelated or clearly suspicious exfiltration endpoint is stated, but user inputs and operational context may be sent to that service.

Code executionLow risk

The material indicates this is a prompt-only skill that mainly instructs the user to search tool schemas first and then call external MCP tools. There is no indication of local shell access, script execution, binary installation, or elevated system permissions. Based on the provided material, the skill itself does not grant local code execution capability.

Data accessCaution

The skill itself does not state that it reads local files or writes local data, but it does reuse sessions, pass arguments/memory, and execute Coinmarketcal-related actions through an external connection. This creates a normal exposure where user task data may be submitted to external MCP/integration services. No obviously excessive local data permissions are described.

Supply chainLow risk

The source is an open-source GitHub repository with strong community adoption (64.7k stars), which are meaningful risk-reducing signals. The provided material is auditable and does not contain obfuscated install scripts, suspicious download commands, or obvious injection content. Remaining caveats are the unspecified license, unknown maintenance status, and the fact that the downstream Rube/Composio service chain is not fully described here.

Recommendations

Before connecting to `https://rube.app/mcp`, verify its privacy policy, logging/retention behavior, and whether prompts or business data are forwarded to Composio or Coinmarketcal.
When completing `RUBE_MANAGE_CONNECTIONS` authorization, review the granted Coinmarketcal scopes and prefer least privilege or a dedicated test account.
Do not place unnecessary sensitive information in tool arguments, memory, or session data, since it may transit external MCP services.
Review the specific skill file in the open-source repo and the official Rube/Composio documentation to confirm the actual tool set and data flows.

Audited by: gpt-5.4 · 2026-06-17

// install

Copy the install command and let the AI configure it · recommended for beginners

Please install the "coinmarketcal-automation" skill from askskill:
1. Download https://raw.githubusercontent.com/ComposioHQ/awesome-claude-skills/master/composio-skills/coinmarketcal-automation/SKILL.md
2. Save it as ~/.claude/skills/coinmarketcal-automation/SKILL.md
3. Reload skills and tell me it's ready

// download

Download SKILL.mdInstall manifest ↗

// docs

Coinmarketcal Automation via Rube MCP

Automate Coinmarketcal operations through Composio's Coinmarketcal toolkit via Rube MCP.

Toolkit docs: composio.dev/toolkits/coinmarketcal

Prerequisites

Rube MCP must be connected (RUBE_SEARCH_TOOLS available)
Active Coinmarketcal connection via RUBE_MANAGE_CONNECTIONS with toolkit coinmarketcal
Always call RUBE_SEARCH_TOOLS first to get current tool schemas

Setup

Get Rube MCP: Add https://rube.app/mcp as an MCP server in your client configuration. No API keys needed — just add the endpoint and it works.

Verify Rube MCP is available by confirming RUBE_SEARCH_TOOLS responds
Call RUBE_MANAGE_CONNECTIONS with toolkit coinmarketcal
If connection is not ACTIVE, follow the returned auth link to complete setup
Confirm connection status shows ACTIVE before running any workflows

Tool Discovery

Always discover available tools before executing workflows:

RUBE_SEARCH_TOOLS
queries: [{use_case: "Coinmarketcal operations", known_fields: ""}]
session: {generate_id: true}

This returns available tool slugs, input schemas, recommended execution plans, and known pitfalls.

Core Workflow Pattern

Step 1: Discover Available Tools

RUBE_SEARCH_TOOLS
queries: [{use_case: "your specific Coinmarketcal task"}]
session: {id: "existing_session_id"}

Step 2: Check Connection

RUBE_MANAGE_CONNECTIONS
toolkits: ["coinmarketcal"]
session_id: "your_session_id"

Step 3: Execute Tools

RUBE_MULTI_EXECUTE_TOOL
tools: [{
  tool_slug: "TOOL_SLUG_FROM_SEARCH",
  arguments: {/* schema-compliant args from search results */}
}]
memory: {}
session_id: "your_session_id"

Known Pitfalls

Always search first: Tool schemas change. Never hardcode tool slugs or arguments without calling RUBE_SEARCH_TOOLS
Check connection: Verify RUBE_MANAGE_CONNECTIONS shows ACTIVE status before executing tools
Schema compliance: Use exact field names and types from the search results
Memory parameter: Always include memory in RUBE_MULTI_EXECUTE_TOOL calls, even if empty ({})
Session reuse: Reuse session IDs within a workflow. Generate new ones for new workflows
Pagination: Check responses for pagination tokens and continue fetching until complete

Quick Reference

Operation	Approach
Find tools	`RUBE_SEARCH_TOOLS` with Coinmarketcal-specific use case
Connect	`RUBE_MANAGE_CONNECTIONS` with toolkit `coinmarketcal`
Execute	`RUBE_MULTI_EXECUTE_TOOL` with discovered tool slugs
Bulk ops	`RUBE_REMOTE_WORKBENCH` with `run_composio_tool()`
Full schema	`RUBE_GET_TOOL_SCHEMAS` for tools with `schemaRef`

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