HTTP Request: get tokenprice from coinmarketcap api (invalid url)

Questions
,
1

Describe the problem/error/question

New to the platform. Setting up an AI agent that looks up the token price using the Coinmarketcap API. I keep getting the error “invalid url”.

What is the error message (if any)?

Invalid url.

Please share your workflow

Used custom auth with json:
{
“headers”: {
“X-CMC_PRO_API_KEY”: “KEY”
}
}

and tried header auth with name (header) and value (api_key).

Workflow below:

Share the output returned by the last node

Node type

@n8n/n8n-nodes-langchain.toolHttpRequest

Node version

1.1 (Latest)

n8n version

1.76.1 (Cloud)

Time

29/01/2025, 21:25:19

Stack trace

NodeApiError: Invalid URL at RoutingNode.runNode (/usr/local/lib/node_modules/n8n/node_modules/n8n-core/dist/execution-engine/routing-node.js:159:23) at WorkflowExecute.runNode (/usr/local/lib/node_modules/n8n/node_modules/n8n-core/dist/execution-engine/workflow-execute.js:683:23) at /usr/local/lib/node_modules/n8n/node_modules/n8n-core/dist/execution-engine/workflow-execute.js:890:51 at /usr/local/lib/node_modules/n8n/node_modules/n8n-core/dist/execution-engine/workflow-execute.js:1224:20

Information on your n8n setup

  • n8n version:
  • Database (default: SQLite):
  • n8n EXECUTIONS_PROCESS setting (default: own, main):
  • Running n8n via (Docker, npm, n8n cloud, desktop app):
  • Operating system:
2

You’re using their v1 api, which is deprecated. I’d recommend to switch to v2. If the problem remains, verify that the provided URL works with a tool like postman - this could be an issue with the request itself, or the symbol you’re using.

4

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