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The n8n-nodes-iotools community node adds one node — IO Tools — to n8n, calling the same public API you already use for REST or MCP: same key, same credits, same 800+ tools.
The node calls the API and MCP surface while it’s still in Beta — see API overview.

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Install

In n8n: Settings → Community Nodes → Install, package name n8n-nodes-iotools.

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Credentials

Add an iotools.cloud API credential:

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Operations

One node, six operations:

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Run Tool

  • Tool — a searchable resource picker or a manual slug, e.g. case-converter.
  • Fields — populated dynamically from the selected tool’s input schema. Enums become dropdowns; everything else maps to a string, number, or boolean field. Array and base64-blob inputs fall back to a string field (paste JSON / base64 text) — there’s no matching n8n field type for either.
  • Additional Fields (JSON) — a JSON object merged on top of Fields, for anything the mapper can’t represent well, or to override a single field with an expression. Defaults to {} (no-op).
  • Simplify — on by default, returns just the tool’s outputs; off returns the full response envelope (tool, tool_version, outputs, credits_used, credits_remaining).
A failed call throws using the API’s own RFC 9457 problem document — the error message is the specific detail (falling back to the category title), and the code shows up in the error’s description.

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Rate limits

API keys are limited to 60 requests/minute per endpoint on the free tier (higher on paid tiers) — easy to hit with more than one IO Tools node in a workflow, or one processing many input items. A rate-limited call is retried automatically (up to 3 times, waiting the time the API itself reports) rather than failing the run; only a rate limit that outlasts those retries surfaces as an error. See Rate limits.

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Cost

Same meter as REST and MCP: every Run Tool call costs the tool’s own credits, refunded if the call fails. Reading the catalog — List Tools, Search Tools, Get Tool Schema, Get Credits, Get Usage — is free. See Credits.

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Troubleshooting