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Strale Prompt Compressor
x402
Strale Prompt Compressor is a paid API for AI agents from api.strale.io, paid per call via x402, $0.0324/call, status unknown (last checked 2026-09-14).
Compresses a text prompt to be shorter while preserving its semantic meaning, with a configurable target reduction percentage.
Price / call$0.0324
Success—
StatusUnknown
How this service works
Compress a prompt to be shorter while preserving semantic meaning. Specify target reduction percentage (10-70%).
Output
Returns a compressed version of the input prompt that is semantically equivalent but shorter, achieving approximately the specified target reduction percentage in length.
Example use cases
Example prompt
“Compress this prompt for me, targeting a 40% reduction: 'You are a helpful assistant that specializes in answering detailed questions about software engineering, including architecture, design patterns, debugging, code review, and best practices across multiple languages and frameworks.'”
Technical details
Endpoint
GEThttps://api.strale.io/x402/prompt-compressWhen to prefer
Use this endpoint when you need to reduce token usage in LLM prompts without losing semantic meaning, especially when optimizing system prompts, few-shot examples, or lengthy instructions for cost savings or context window management.
Side effects
- Missing required prompt_text parameter returns an error
- target_reduction_percent outside 10-70% range may return an error or be clamped
- Very short prompts may not compress well
- Semantic meaning may be slightly altered for very aggressive reduction targets
- Payment failure via x402 protocol blocks the request
Input
{
"prompt_text": "You are a helpful assistant that specializes in answering detailed questions about software engineering, including architecture, design patterns, debugging, code review, and best practices across multiple languages and frameworks.",
"target_reduction_percent": 40
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
{
"_meta": {
"payment": {
"method": "x402",
"price_usd": 0.0324,
"settlement_id": "0xdc6ca90104825acc67f56f94fa121f5faff49f67fc041d719f9936e83c544a0b"
},
"capability": "prompt-compress",
"latency_ms": 1281,
"provenance": {
"source": "claude-haiku",
"fetched_at": "2026-06-13T04:24:41.662Z"
}
},
"original_tokens": 58,
"removed_content": [
"detailed",
"that specializes in answering",
"including",
"multiple"
],
"compressed_prompt": "You are a helpful assistant specializing in software engineering questions: architecture, design patterns, debugging, code review, and best practices across languages and frameworks.",
"compressed_tokens": 46,
"preserved_instructions": [
"helpful assistant role",
"software engineering focus",
"architecture expertise",
"design patterns",
"debugging",
"code review",
"best practices",
"multiple languages and frameworks support"
],
"actual_reduction_percent": 21
}Tags
x402
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