Knowra
Search arXiv papers and read Scout reports with methods, evidence and verification points.
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"knowra": {
"url": "https://mcp.knowra.app/mcp"
}
}
}Remote endpoints
https://mcp.knowra.app/mcpstreamable-httpWhat it can do
Tool inventory
Tools (3)
🟢search_papers(query, from, to, limit)
Discover indexed arXiv papers using titles, authors and abstracts to assess relevance. Prefer an English research topic or question, preserving important entities and phrases. For broad questions, consider distinct research dimensions and query each as useful. Independent queries can run concurrently; 5-10 concurrent requests are recommended for larger batches. Results can complement findings from other research tools and sources for broader coverage. scout_available indicates whether deeper paper-based analysis can be requested with get_scout; choose further reading according to the evidence needed. Use from/to as YYYY-MM-DD UTC dates with both days included. Provide both or neither; each dated query covers at most one calendar month, with dates available from 2025-08-01 onward. Omit both for all indexed dates. For timeouts, wait at least retry_after_seconds when supplied before retrying.
Input Schema
{
"type": "object",
"properties": {
"query": {
"description": "Prefer English natural-language research topics or questions; keep important entities and technical phrases.",
"examples": [
"dense passage retrieval reranking BEIR"
],
"maxLength": 2000,
"minLength": 1,
"pattern": "\\S",
"title": "Query",
"type": "string"
},
"from": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"description": "First included UTC date, YYYY-MM-DD. The database supports 2025-08-01 onward. Provide both from and to, or omit both to search all supported content.",
"examples": [
"2026-09-26"
],
"title": "From"
},
"to": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"description": "Last included UTC date, YYYY-MM-DD; the entire day is included. Provide both from and to. At most one calendar month after from; same-day queries valid.",
"examples": [
"2026-10-02"
],
"title": "To"
},
"limit": {
"default": 20,
"examples": [
10,
20,
50
],
"maximum": 50,
"minimum": 1,
"title": "Limit",
"type": "integer"
}
},
"required": [
"query"
],
"title": "search_papersArguments"
}Output Schema
{
"type": "object",
"properties": {
"papers": {
"items": {
"$ref": "#/$defs/Paper"
},
"title": "Papers",
"type": "array"
},
"returned": {
"title": "Returned",
"type": "integer"
},
"query_hint": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"title": "Query Hint"
}
},
"required": [
"papers",
"returned"
],
"$defs": {
"Paper": {
"properties": {
"paper_id": {
"title": "Paper Id",
"type": "string"
},
"title": {
"title": "Title",
"type": "string"
},
"authors": {
"items": {
"type": "string"
},
"title": "Authors",
"type": "array"
},
"abstract": {
"title": "Abstract",
"type": "string"
},
"date": {
"description": "Paper date in UTC.",
"format": "date-time",
"title": "Date",
"type": "string"
},
"source_url": {
"title": "Source Url",
"type": "string"
},
"version": {
"default": 1,
"title": "Version",
"type": "integer"
},
"scout_available": {
"default": false,
"title": "Scout Available",
"type": "boolean"
}
},
"required": [
"paper_id",
"title",
"authors",
"abstract",
"date",
"source_url"
],
"title": "Paper",
"type": "object"
}
},
"title": "SearchResult"
}🟢get_scout(paper_id)
Read a structured paper-based analysis of key signals, methodology, evidence, experimental conditions and verification points, with author-stated limitations where available. Use it when these details help assess a candidate, compare findings, or understand the context of a claim beyond the abstract. Search results mark supported papers with scout_available=true. Returns text including figure captions and descriptions. If needed, consult the original paper through source_url for further verification. Independent papers can be requested concurrently; up to five concurrent requests are recommended per batch. For a timeout, wait as indicated and retry the same paper.
Input Schema
{
"type": "object",
"properties": {
"paper_id": {
"description": "Paper identifier from search results; scout_available indicates Scout availability.",
"examples": [
"arxiv:2508.12345"
],
"maxLength": 128,
"minLength": 1,
"title": "Paper Id",
"type": "string"
}
},
"required": [
"paper_id"
],
"title": "get_scoutArguments"
}Output Schema
{
"type": "object",
"properties": {
"paper_id": {
"title": "Paper Id",
"type": "string"
},
"source_url": {
"title": "Source Url",
"type": "string"
},
"scout": {
"description": "Paper-based Scout analysis with evidence, verification points and figure descriptions.",
"title": "Scout",
"type": "string"
}
},
"required": [
"paper_id",
"source_url",
"scout"
],
"title": "ScoutResult"
}🟢get_usage
Check Scout quota, usage, remaining allowance and reset time, along with plan and entitlement details. Entitlement expiry and quota reset time describe different events.
Input Schema
{
"type": "object",
"properties": {},
"title": "get_usageArguments"
}Output Schema
{
"type": "object",
"properties": {
"user_id": {
"title": "User Id",
"type": "string"
},
"limit": {
"title": "Limit",
"type": "integer"
},
"used": {
"title": "Used",
"type": "integer"
},
"remaining": {
"title": "Remaining",
"type": "integer"
},
"resets_at": {
"format": "date-time",
"title": "Resets At",
"type": "string"
},
"hard_limit": {
"title": "Hard Limit",
"type": "boolean"
},
"plan_tier": {
"title": "Plan Tier",
"type": "string"
},
"subscription_expired": {
"title": "Subscription Expired",
"type": "boolean"
},
"entitlement_source": {
"default": "free",
"title": "Entitlement Source",
"type": "string"
},
"entitlement_expires_at": {
"anyOf": [
{
"format": "date-time",
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"title": "Entitlement Expires At"
},
"billing_owner": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"title": "Billing Owner"
}
},
"required": [
"user_id",
"limit",
"used",
"remaining",
"resets_at",
"hard_limit",
"plan_tier",
"subscription_expired"
],
"title": "ScoutUsage"
}Community
Evidence