arxiv-mcp.mtree.workers.dev

Name: arxiv-mcp.mtree.workers.dev
Price: 0.04 USDC
Availability: InStock

Deploy serverless functions globally in seconds. No cold starts, 330+ cities, infinite concurrency, and pay only for CPU time. Support for JavaScript, TypeScript, Python, and Rust.

SearchLiveeip155:8453Exactvia facilitator:payAI

https://arxiv-mcp.mtree.workers.dev/v1/papers/search

Settlements · 30d

3↓ 100%

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.

$19.81

Verified settled volume

175 settlements proven x402 by their on-chain EIP-3009 marker.

$0.040

Listed price

As published in the catalog. Always read the live 402 before paying.

—

Calls · 30d

Upstream's own call count for this endpoint, not ours.

—

Unique payers · 30d

Never called

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0x1664530DC2A1CA350B1dbaD1Fc1F1a70c90fe4de

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.04USDC≈ $0.04 USD

on Base · exact scheme

Pay 0.04 USDC on Base to 0x1664…fe4de. The signed payment is good for 5 minutes.

Paid to: 0x1664…fe4de
USD Coin contract: 0x8335…02913
Payment window: 5 minutes
As published: 40000 smallest units
Buys: Full-text metadata search across every arXiv preprint. Filter by free-text query, title, author(s), category (cs, math, stat, physics, q-bio, q-fin, econ, eess, etc.), and submitted-date range. Returns titles, authors, abstracts, primary category, DOI, journal-ref, abs URL and PDF URL. Sort by relevance, lastUpdatedDate, or submittedDate.
Returns: application/json

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x1664530DC2A1CA350B1dbaD1Fc1F1a70c90fe4de",
    "scheme": "exact",
    "network": "base",
    "mimeType": "application/json",
    "resource": "https://arxiv-mcp.mtree.workers.dev/v1/papers/search",
    "description": "Full-text metadata search across every arXiv preprint. Filter by free-text query, title, author(s), category (cs, math, stat, physics, q-bio, q-fin, econ, eess, etc.), and submitted-date range. Returns titles, authors, abstracts, primary category, DOI, journal-ref, abs URL and PDF URL. Sort by relevance, lastUpdatedDate, or submittedDate.",
    "outputSchema": {
      "input": {
        "type": "http",
        "method": "POST",
        "bodyType": "json",
        "bodyFields": {
          "limit": {
            "type": "number",
            "example": 25,
            "description": "Max results (1–50)"
          },
          "query": {
            "type": "string",
            "example": "transformer architecture attention mechanism",
            "description": "Free-text query — searches title + abstract + authors. Optional if title/authors/categories supplied."
          },
          "title": {
            "type": "string",
            "example": "retrieval augmented generation",
            "description": "Restrict to title matches (combined with `query` via AND). Optional."
          },
          "sortBy": {
            "type": "string",
            "example": "submittedDate",
            "description": "relevance | lastUpdatedDate | submittedDate (default relevance)"
          },
          "authors": {
            "type": "string",
            "example": "Yoshua Bengio,Yann LeCun",
            "description": "Comma-separated author names — matched as OR across authors. Optional."
          },
          "endDate": {
            "type": "string",
            "example": "2024-12-31",
            "description": "Submitted-date end YYYY-MM-DD"
          },
          "fromDays": {
            "type": "number",
            "example": 365,
            "description": "Look back this many days on submittedDate (1–3650)"
          },
          "sortOrder": {
            "type": "string",
            "example": "descending",
            "description": "ascending | descending (default descending)"
          },
          "startDate": {
            "type": "string",
            "example": "2024-01-01",
            "description": "Submitted-date start YYYY-MM-DD (overrides fromDays)"
          },
          "categories": {
            "type": "string",
            "example": "cs.CL,cs.LG",
            "description": "Comma-separated arXiv category codes (e.g. \"cs.CL,cs.LG,stat.ML\") — matched as OR. Optional."
          }
        },
        "discoverable": true
      },
      "output": {
        "example": {
          "source": "export.arxiv.org/api",
          "results": [
            {
              "id": "2401.12345",
              "title": "Example: Attention is all you need (revisited)",
              "abs_url": "http://arxiv.org/abs/2401.12345v1",
              "authors": [
                "Ada Lovelace",
                "Alan Turing"
              ],
              "pdf_url": "http://arxiv.org/pdf/2401.12345v1",
              "summary": "We revisit the transformer architecture …",
              "published": "2024-01-23T18:00:00Z",
              "categories": [
                "cs.CL",
                "cs.LG"
              ],
              "primary_category": "cs.CL"
            }
          ],
          "total_results": 12483
        }
      }
    },
    "maxAmountRequired": "40000",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog: 2026-05-14 00:40Z
Last indexed by Roundhouse: 2026-09-25 06:15Z
Last enriched (probe, favicon, geo): 2026-09-19 15:15Z
x402 version: 1
Max timeout: 300s
Liveness probe: HTTP 200

Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md

Show the prompt

Using Roundhouse, look up the x402 service arxiv-mcp.mtree.workers.dev and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=arxiv-mcp.mtree.workers.dev'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://arxiv-mcp.mtree.workers.dev/v1/papers/search, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.