Text Summariser
Condense long documents to their key sentences using extractive TF-IDF summarisation
/v1/text/summarize
curl -X POST "https://textanalysis.toolkitapi.io/v1/text/summarize" \
-H "X-API-Key: YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{"text": "Your long article text here...", "num_sentences": 3}'
import httpx
resp = httpx.post(
"https://textanalysis.toolkitapi.io/v1/text/summarize",
json={"text": "Your long article text here...", "num_sentences": 3},
)
print(resp.json())const resp = await fetch("https://textanalysis.toolkitapi.io/v1/text/summarize", {
method: "POST",
headers: {
"Content-Type": "application/json",
},
body: JSON.stringify({"text": "Your long article text here...", "num_sentences": 3}),
});
const data = await resp.json();
console.log(data);# See curl example{
"summary": "The first most important sentence. The second key insight. The third critical point.",
"sentences_in_summary": 3,
"original_sentence_count": 12
}Try It Live
Description
How to Use
1. Send a POST request to `/v1/text/summarize` with the `text` to summarise. 2. Set `num_sentences` to control the summary length (default: 3). 3. The response includes the `summary` string and the `original_sentence_count` for context. 4. For best results, provide at least 5 sentences of source text.
About This Tool
The Summarise endpoint uses extractive summarisation to condense long documents to a configurable number of key sentences. It uses TF-IDF scoring to rank sentences by importance — no LLM or external service required.
Unlike abstractive summarisation (which generates new text), extractive summarisation selects the most relevant sentences directly from the source — making it fast, deterministic, and free from hallucination.
Why Use This Tool
- Article previews — Generate a 2–3 sentence preview for email newsletters or social media
- Document digest — Condense reports and contracts to their key points for quick review
- LLM pre-processing — Reduce token count by extracting relevant sentences before sending to an LLM
- News aggregation — Auto-generate article summaries for a content aggregation feed
Start using Text Summariser now
Get your free API key and make your first request in under a minute.