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)
377ms
Uptime (30d)
100.0%
Reliability Score
95/100
Last Checked
2026-09-12 09:52:51
Last Healthy
2026-09-12 09:52:51
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 |
|---|---|---|---|---|
| 2026-09-12 09:52:51 | healthy | 402 | 290ms | |
| 2026-09-12 00:24:55 | healthy | 402 | 319ms | |
| 2026-09-11 06:13:30 | healthy | 402 | 881ms | |
| 2026-09-10 21:56:47 | healthy | 402 | 273ms | |
| 2026-09-10 06:27:29 | healthy | 402 | 1151ms | |
| 2026-09-09 23:05:26 | healthy | 402 | 377ms | |
| 2026-09-09 18:45:49 | healthy | 402 | 578ms |