# Stack Exchange API > Search Stack Overflow and the Stack Exchange network — questions by relevance with scores, answer counts and tags, full question details, and user profiles with reputation, badges and location. Ideal for developer tools, tech-trend monitoring, Q&A aggregation and reputation lookups. ## Authentication All requests require your oanor API key in the `x-oanor-key` header. Get one at https://www.oanor.com/developer/keys. ```bash curl -H "x-oanor-key: oanor_live_…" "https://api.oanor.com/stackexchange-api/..." ``` ## Pricing - **Free** (Free) — 4,000 calls/Mo, 2 req/s - **Basic** ($8/Mo) — 60,000 calls/Mo, 8 req/s - **Pro** ($24/Mo) — 300,000 calls/Mo, 20 req/s - **Mega** ($99/Mo) — 1,500,000 calls/Mo, 50 req/s ## Endpoints ### Stack Exchange #### `GET /v1/question` — A question by id **Parameters:** - `id` (query, required, string) — Numeric question id Example: `11227809` - `site` (query, optional, string) — Stack Exchange site slug (default stackoverflow; see /v1/sites) Example: `stackoverflow` **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/stackexchange-api/v1/question?id=11227809&site=stackoverflow" ``` **Response:** ```json { "data": { "id": 11227809, "link": "https://stackoverflow.com/questions/11227809/why-is-conditional-processing-of-a-sorted-array-faster-than-of-an-unsorted-array", "tags": [ "java", "c++", "performance", "cpu-architecture", "branch-prediction" ], "owner": "GManNickG", "score": 27530, "title": "Why is conditional processing of a sorted array faster than of an unsorted array?", "created_at": "2012-06-27T13:51:36.000Z", "view_count": 1985304, "is_answered": true, "answer_count": 26, "last_activity_at": "2026-04-08T05:35:32.000Z", "accepted_answer_id": 11227902 }, "meta": { "timestamp": "2026-05-30T06:33:29.921Z", "request_id": "17f03b07-c69f-4aed-8065-159a7ff98e4d" }, "status": "ok", "message": "Question retrieved", "success": true } ``` #### `GET /v1/search` — Search questions by relevance **Parameters:** - `q` (query, required, string) — Search text Example: `how to reverse a list` - `site` (query, optional, string) — Stack Exchange site slug (default stackoverflow; see /v1/sites) Example: `stackoverflow` - `limit` (query, optional, string) — Max results (1-30) Example: `15` **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/stackexchange-api/v1/search?q=how+to+reverse+a+list&site=stackoverflow&limit=15" ``` **Response:** ```json { "data": { "site": "stackoverflow", "count": 15, "query": "async await", "results": [ { "id": 37576685, "link": "https://stackoverflow.com/questions/37576685/using-async-await-with-a-foreach-loop", "tags": [ "javascript", "node.js", "promise", "async-await", "ecmascript-2017" ], "owner": "Saad", "score": 3351, "title": "Using async/await with a forEach loop", "created_at": "2016-06-01T18:55:58.000Z", "view_count": 2476066, "is_answered": true, "answer_count": 35, "last_activity_at": "2025-01-28T01:27:13.000Z", "accepted_answer_id": 37576787 }, { "id": 14455293, "link": "https://stackoverflow.com/questions/14455293/how-and-when-to-use-async-and-await", "tags": [ "c#", ".net", "asynchronous", "async-await" ], "owner": "Dan Dinu", "score": 1429, "title": "How and when to use ‘async’ and ‘await’", "created_at": "2013-01-22T09:29:58.000Z", "view_count": 1314415, " …(truncated, see openapi.json for full schema) ``` #### `GET /v1/user` — A user profile by id **Parameters:** - `id` (query, required, string) — Numeric user id Example: `22656` - `site` (query, optional, string) — Stack Exchange site slug (default stackoverflow; see /v1/sites) Example: `stackoverflow` **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/stackexchange-api/v1/user?id=22656&site=stackoverflow" ``` **Response:** ```json { "data": { "id": 22656, "link": "https://stackoverflow.com/users/22656/jon-skeet", "name": "Jon Skeet", "badges": { "gold": 895, "bronze": 9357, "silver": 9318 }, "location": "Reading, United Kingdom", "user_type": "registered", "created_at": "2008-09-26T12:05:05.000Z", "reputation": 1527510, "profile_image": "https://www.gravatar.com/avatar/6d8ebb117e8d83d74ea95fbdd0f87e13?s=256&d=identicon&r=PG", "last_access_at": "2026-05-29T19:26:28.000Z" }, "meta": { "timestamp": "2026-05-30T06:33:31.171Z", "request_id": "71c132cc-8cd1-4db2-b206-cf8d80cff462" }, "status": "ok", "message": "User retrieved", "success": true } ``` ### Questions #### `GET /v1/answers` — Answers to a question, highest-voted first **Parameters:** - `id` (query, required, string) — Numeric question id Example: `11227809` - `site` (query, optional, string) — Stack Exchange site slug (default stackoverflow; see /v1/sites) Example: `stackoverflow` - `sort` (query, optional, string) — votes (default), activity or creation Example: `votes` - `limit` (query, optional, string) — Max results (1-30) Example: `10` **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/stackexchange-api/v1/answers?id=11227809&site=stackoverflow&sort=votes&limit=10" ``` **Response:** ```json { "data": { "site": "stackoverflow", "sort": "votes", "count": 10, "results": [ { "id": 11227902, "body": "

You are a victim of branch prediction fail.

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What is Branch Prediction?

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Consider a railroad junction:

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\"Image\nImage by Mecanismo, via Wikimedia Commons. Used under the CC-By-SA 3.0 license.

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Now for the sake of argument, suppose this is back in the 1800s - before long-distance or radio communication.

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You are a blind operator of a junction and you hear a train coming. You have no idea which way it is supposed to go. You stop the train to ask the driver which direction they want. And then you set the switch appropriately.

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Trains are heavy and have a lot of inertia, so they take forever to start up and slow down.

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Is there a better way? You guess which direction the train will go!

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