Resolve one or more arXiv papers by id. Accepts modern ("2401.12345", "2401.1234...
https://arxiv-mcp.mtree.workers.dev/v1/papers/by_idOverview
Resolve one or more arXiv papers by id. Accepts modern ("2401.12345", "2401.12345v2") and old-style ("cs.CL/9912001") ids; "arXiv:" prefix and full abs/pdf URLs are normalised. Returns full metadata: title, authors, abstract, categories, DOI, journal-ref, comment, abs URL, PDF URL.
Protocol
x402 (POST)
Price
$0.05
Payment Asset
USD Coin
Payment Network
Base
Category
uncategorized
Provider
arxiv-mcp
Source
bazaar
Indexed
2026-05-15 06:55:31
Health
Status
healthy
Latency (p50)
344ms
Uptime (30d)
100.0%
Reliability Score
95/100
Last Checked
2026-07-25 20:54:38
Last Healthy
2026-07-25 20:54:38
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Input Schema
{
"bodyFields": {
"id": {
"description": "Single arXiv id (e.g. \"2401.12345\"). Use either `id` or `ids`.",
"example": "2401.12345",
"type": "string"
},
"ids": {
"description": "Comma-separated list of arXiv ids (max 50).",
"example": "2401.12345,2310.06825,cs.CL/9912001",
"type": "string"
}
},
"bodyType": "json",
"discoverable": true,
"method": "POST",
"type": "http"
}
Output Schema
{
"example": {
"results": [
{
"abs_url": "http://arxiv.org/abs/2401.12345v1",
"arxiv_id": "2401.12345",
"authors": [
"Ada Lovelace"
],
"categories": [
"cs.CL",
"cs.LG"
],
"comment": "10 pages, 4 figures",
"doi": "10.1234/example.5678",
"id": "2401.12345",
"journal_ref": "Example Journal 12 (2024) 345-360",
"pdf_url": "http://arxiv.org/pdf/2401.12345v1",
"primary_category": "cs.CL",
"published": "2024-01-23T18:00:00Z",
"summary": "Abstract …",
"title": "Example paper",
"updated": "2024-02-01T12:00:00Z"
}
],
"source": "export.arxiv.org/api"
}
}
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-07-25 20:54:38 | healthy | 402 | 374ms | |
| 2026-07-25 18:15:11 | healthy | 402 | 455ms | |
| 2026-07-25 14:22:03 | healthy | 402 | 639ms | |
| 2026-07-25 07:17:00 | healthy | 402 | 261ms | |
| 2026-07-25 04:59:10 | healthy | 402 | 565ms | |
| 2026-07-24 23:11:44 | healthy | 402 | 246ms | |
| 2026-07-24 20:25:27 | healthy | 402 | 534ms | |
| 2026-07-24 18:44:47 | healthy | 402 | 359ms | |
| 2026-07-24 12:23:19 | healthy | 402 | 340ms | |
| 2026-07-24 08:02:32 | healthy | 402 | 257ms | |
| 2026-07-24 05:01:04 | healthy | 402 | 331ms | |
| 2026-07-24 02:43:33 | healthy | 402 | 298ms | |
| 2026-07-23 21:38:53 | healthy | 402 | 356ms | |
| 2026-07-23 16:09:00 | healthy | 402 | 344ms | |
| 2026-07-23 10:42:57 | healthy | 402 | 555ms | |
| 2026-07-23 06:37:37 | healthy | 402 | 270ms | |
| 2026-07-23 03:08:05 | healthy | 402 | 211ms | |
| 2026-07-23 00:22:53 | healthy | 402 | 322ms |