Text rewriting API: make text formal, casual, shorter or simpler

$0.01 per call · failed calls are never charged · no account needed: a card key or USDC

Rewrite text to be more formal, casual, simpler, shorter, friendlier, more professional or more persuasive, keeping the meaning and language. Use to polish emails, replies, product copy and messages.

When to use it

Run it free (3 free calls) Buy credits by card (from $1) Example result (JSON)

Try it with your own inputs

Text, up to 8,000 characters

Uses one of your 3 free calls. Nothing is charged, and a call that fails is not counted.

Inputs

NameTypeDescription
text (required)stringText, up to 8,000 characters
stylestringformal, casual, simpler, shorter, friendly, professional or persuasive (default professional). One of: formal, casual, simpler, shorter, friendly, professional, persuasive.

Request

Over HTTP, with a card key from /credits:

curl -H "Authorization: Bearer adt_…" "https://glyphcall.com/ai/rewrite?text=hey%2C%20cant%20make%20it%20tmrw%2C%20can%20we%20move%20to%20thu%3F"

Or one of your 3 free calls, no key:

curl "https://glyphcall.com/ai/rewrite?text=hey%2C%20cant%20make%20it%20tmrw%2C%20can%20we%20move%20to%20thu%3F&trial=1"

Without a key, the same URL answers 402 Payment Required with x402 and MPP terms, so an agent with a wallet pays per call in USDC (Base, Polygon, Arbitrum or Solana over x402; Base or Tempo over MPP) and retries.

Example result

{
  "style": "professional",
  "text": "I'm afraid I won't be able to make it tomorrow; would it be possible to reschedule for Thursday instead?",
  "model": "@cf/meta/llama-4-scout-17b-16e-instruct"
}

From an AI agent (MCP)

Add the MCP server to Claude, Cursor or any MCP client. This tool is ai_rewrite, and the first 25 successful calls are free:

https://glyphcall.com/mcp

Questions

Does it change the meaning or language?

No. It keeps the meaning and language and adds no facts, names or details that are not in the original.

How do I pay?

Each successful call costs $0.01; failed calls are not charged. The first 3 calls are free (25 through an MCP client). Then pay with card credits (from $1; the key goes in an Authorization header or, for clients that can only fetch a URL, as api_key= in the URL) or per call in USDC over x402 or MPP. No account is needed.

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