GET /tagsstackexchange.com:mathoverflow-api
Returns a list of tags used on MathOverflow with their usage statistics. Each tag includes its name, count of questions using it, and whether it's a required or moderated tag. Use this to discover mathematical topics, build tag clouds, or find popular subject areas. This is the go-to endpoint for exploring the mathematical taxonomy of MathOverflow.
Returns all tags on MathOverflow
- `site=mathoverflow` is required - Tags are sorted by popularity (question count) by default - `sort=name` gives alphabetical ordering - Use `inname` parameter to search for tags matching a pattern - Response includes `has_synonyms` — tags with synonyms have alternative names - Popular tags like 'ag.algebraic-geometry' have thousands of questions
(string, query, optional)
Filter to apply to results
(integer, query, optional)
Start date (Unix timestamp)
(string, query, optional)
Filter tags by name substring
(string, query, optional)
API key for higher rate limits
(integer, query, optional)
Maximum value for sort field (Unix timestamp)
(integer, query, optional)
Minimum value for sort field (Unix timestamp)
(string, query, optional, default: desc)
Sort order
Constraints: {'enum': ['asc', 'desc']}
(integer, query, optional, default: 1)
Page number for pagination
(integer, query, optional, default: 30)
Number of items per page (max 100)
Constraints: {'maximum': 100}
(string, query, required, default: mathoverflow)
Site to query (mathoverflow for MathOverflow)
(string, query, optional)
Sort field
Constraints: {'enum': ['activity', 'votes', 'creation', 'relevance']}
(integer, query, optional)
End date (Unix timestamp)
| Title | Type | URL | Action |
|---|---|---|---|
| Get popular tags on MathOverflow | curl |
https://api.stackexchange.com/2.3/tags?site=mathoverflow |
|
| Get tags with pagination | curl |
https://api.stackexchange.com/2.3/tags?site=mathoverflow&page=2&pagesize=10 |
|
| Get tags sorted alphabetically | curl |
https://api.stackexchange.com/2.3/tags?site=mathoverflow&sort=name&order=asc |
|
| Get all tags on MathOverflow | probe-gate |
https://api.stackexchange.com/2.3/tags?site=mathoverflow&order=desc&sort=popular&pagesize=30&page=1 |
| Time | Status | Latency | Size |
|---|---|---|---|
| 2026-03-23 10:29:29.170556 | 200 | 235ms | |
| 2026-03-23 10:18:43.010859 | 200 | 308ms | |
| 2026-03-23 10:13:40.246440 | 200 | 244ms | |
| 2026-03-23 10:12:07.559676 | 200 | 291ms |
| When | Old | New |
|---|---|---|
| 2026-03-23 10:13:40.246440 | 1d4c174d35f4 |
0fbc42222ac1 |
| 2026-03-23 10:18:43.010859 | 0fbc42222ac1 |
69a7705249ee |
| 2026-03-23 10:29:29.170556 | 69a7705249ee |
0f7a617d0e95 |