Tool calling that just works
Tool calling that just works
From: OpenRouter Team
To: tjphuhs@gmail.com
Account: tjphuhs@gmail.com
Date: 3/27/2026, 5:25:37 PM
Gmail ID: 19d31303c4c5a35a
Thread ID: 19d31303c4c5a35a
Raw Path: /Volumes/Storage Drive/Homelab_Apps_storage/mcp-server/backups/email/tjphuhs@gmail.com/2026/2026-03-27/20260327-212537-19d31303c4c5a35a.eml
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OpenRouter OpenRouter Hi T, Tool calls give an LLM the ability to interact with the outside world, as well as power agentic workflows. OpenRouter standardizes the tool calling interface across models
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OpenRouter
OpenRouter ( https://openrouter.ai/?utm_campaign=Welcome+Email+Campaign+%232&utm_content=ToolCalling-email&utm_medium=email_action&utm_source=customer.io )
Hi T,
Tool calls ( https://openrouter.ai/docs/guides/features/tool-calling?utm_campaign=Welcome+Email+Campaign+%232&utm_content=ToolCalling-email&utm_medium=email_action&utm_source=customer.io ) give an LLM the ability to interact with the outside world, as well as power agentic workflows.
OpenRouter standardizes the tool calling interface across models and providers, making it easy to integrate external tools with any supported model.
You can find models that support tool calling by filtering on the models page ( openrouter.ai/models?supported_parameters=tools&utm_campaign=Welcome+Email+Campaign+%232&utm_content=ToolCalling-email&utm_medium=email_action&utm_source=customer.io ).
Learn more about tool calling, including examples such as “multi-level research with reasoning ( https://openrouter.ai/docs/guides/features/tool-calling?utm_campaign=Welcome+Email+Campaign+%232&utm_content=ToolCalling-email&utm_medium=email_action&utm_source=customer.io#example-multi-step-research-with-reasoning )”, and its corresponding code snippets in the documentation ( https://openrouter.ai/docs/guides/features/tool-calling?utm_campaign=Welcome+Email+Campaign+%232&utm_content=ToolCalling-email&utm_medium=email_action&utm_source=customer.io ).
Happy tool calling!
Best,
OpenRouter Team
For questions or comments, reach out to us on X ( https://x.com/openrouterai?utm_campaign=Welcome+Email+Campaign+%232&utm_content=ToolCalling-email&utm_medium=email_action&utm_source=customer.io ) or on Discord ( https://discord.com/invite/8TpuzNXQYr?utm_campaign=Welcome+Email+Campaign+%232&utm_content=ToolCalling-email&utm_medium=email_action&utm_source=customer.io ).
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