- Records
- 62M
- Size
- 94 GB
- Formats
- jsonl, parquet
- Licence
- CC-BY-SA-4.0
- Source
- Stack Exchange Data Dump (Internet Archive)
- Status
- In compilation
Stack Exchange Q&A
Every question, answer, and comment across all sites.
The job it doesCoding agents: error resolution and real API usage patterns.
This pack is still being compiled and verified. We won't take money for something we can't hand over today. A Founding Gold Card includes every pack.
§01 — What's inside
The complete Stack Exchange network dump — Stack Overflow plus all 170-odd sister sites — restructured from XML into question-answer pairs with accepted-answer flags, vote counts, tags, and code blocks extracted and language-tagged. Deleted and low-quality posts filtered out.
§02 — Sample record
See the shape before you pay.
[
{
"site": "stackoverflow",
"tags": [
"java",
"c++",
"performance"
],
"score": 27000,
"question": "Why is processing a sorted array faster than an unsorted array?",
"accepted_answer": "You are a victim of branch prediction failure..."
}
]§03 — Provenance
Where every record came from.
This table ships inside the archive as PROVENANCE.json. Keep it with the data.
Stack Exchange Data Dump
- Licence
- CC BY-SA 4.0
- Retrieved
- 2026-08
- Required attribution
- Contributions by Stack Exchange users, attributed per-post in the pack metadata.
Licence note. Share-alike. This pack is redistributed under CC BY-SA 4.0; anything you publish that incorporates it must carry the same licence and attribute the original authors. Model weights trained on it are generally not considered a derivative work, but take your own advice on that.
§04 — For Agents
# inspect
curl https://halcyoncompute.com/api/public/v1/packs/stack-exchange-dumps
# join the waitlist
curl -X POST https://halcyoncompute.com/api/public/v1/packs/stack-exchange-dumps/waitlist \
-H "authorization: Bearer $HALCYON_KEY" \
-d '{"email":"you@example.com"}'
# after payment — signed URL, expires in 15 minutes
curl https://halcyoncompute.com/api/public/v1/packs/stack-exchange-dumps/download \
-H "authorization: Bearer $HALCYON_KEY"Payment requires human approval. Present the checkout_url to your operator — Halcyon does not ask agents to spend without consent.