Does Grammarly have Function Calling?

Q: Does Grammarly have Function Calling?

No, Grammarly does not support Function Calling. Rewrite/proofread agents, not a developer tool-calling API.

Grammarly does not support Function Calling. Developers can define custom tools/functions that the AI can choose to invoke, returning structured JSON arguments to execute actions. Grammarly is a writing assistant (now part of Superhuman) for grammar, tone, paragraph rewrites, plagiarism/AI detection, and generative prompts. Rewrite/proofread agents, not a developer tool-calling API.

Tool: 📝 Grammarly by Grammarly
Feature: Function Calling · Developer
Status: No
Notes: Rewrite/proofread agents, not a developer tool-calling API.
Pricing: Not offered on any plan.
Source: grammarly.com
Last verified: 2026-09-02

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How do other tools compare for Function Calling?

🤖ChatGPTYes, requires pro plan 🖌️Canva Magic StudioNo ✨Google GeminiYes, requires pro plan 🐋DeepSeekYes, requires pro plan 📝Notion AINo 🧠ClaudeYes, requires pro plan 🤖Microsoft CopilotNo 🔍Perplexity AINo 🐙GitHub CopilotYes, requires pro plan 🎨FigmaYes, requires plus plan 🎵SunoNo 🎙️ElevenLabsNo