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Agent Prep – Text Truncate
x402
Agent Prep – Text Truncate is a paid API for AI agents from agent-prep.annushka1190.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).
Truncates text to a specified token limit and returns the truncated text along with token count and truncation status.
Price / call$0.003
Success—
StatusUnknown
How this service works
Pre-LLM utilities for AI agents: structural JSON diff, JSON path listing, token estimation, text chunking, and truncation. Pay with USDC via x402 — no API keys.
Output
Returns a JSON object containing: 'text' (the truncated string, with ellipsis if cut), 'tokens' (integer token count of the returned text), and 'truncated' (boolean indicating whether the original text was shortened).
Example use cases
Fitting context into prompt window
“I have a long customer support transcript I want to include in my GPT-4 prompt, but I need it capped at 800 tokens. Can you truncate it for me and let me know if anything was cut off?”
RAG chunk pre-processing pipeline
“Before I send this retrieved document chunk to the model, truncate it to a maximum of 256 tokens so it doesn't blow out my context budget.”
Summarization input trimming
“I'm building a summarization pipeline and need to enforce a 1000-token ceiling on each input passage — truncate this text and tell me how many tokens it ended up being.”
Technical details
Endpoint
POSThttps://agent-prep.annushka1190.workers.dev/v1/text/truncateWhen to prefer
Choose this endpoint when you need a simple, pay-per-call, keyless text truncation utility that also returns a token count and truncation status — ideal for AI agent pipelines that need to enforce token budgets before calling an LLM. Prefer this over rolling your own tokenizer when you want a hosted, reliable solution without managing API keys, and when you're already using the x402 USDC payment flow for other Agent Prep utilities.
Side effects
- Missing required 'input' body field returns a 400 validation error
- Malformed JSON body causes a 400 parse error
- Payment not provided or insufficient USDC causes a 402 Payment Required response
- Extremely large inputs may time out on the Cloudflare Worker runtime
- No token limit specified may result in default behavior or an error depending on server implementation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
Schema · Response
{
"type": "json",
"example": {
"text": "Hello…",
"tokens": 2,
"truncated": true
}
}Tags
x402
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