Agent skill

Orkg API

by wentorai in wentorai/research-plugins

Query the Open Research Knowledge Graph for structured research data

MITAuto-check passedKnowledge Management

Install Orkg API

skills CLI
$ npx skills add wentorai/research-plugins --skill orkg-api -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install wentorai/research-plugins orkg-api --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/wentorai/research-plugins.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/literature/metadata/orkg-api .claude/skills/orkg-api && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
orkg-api
GitHub stars
298
Used in
1 other repo
Token cost
~1.3k tokens
SKILL.md length
260 words
Files
1
Skills in repo
405
Repo updated
First seen
Licence
MIT

At a glance

Query the Open Research Knowledge Graph for structured research data

  • Works in 4 steps: Literature surveys: Find existing… → Method selection: Compare methods across… → Gap analysis: Identify research problems… → …
  • Tasks that involve Knowledge graphs
  • SKILL.md covers Overview, API Endpoints, Python Usage and Key Concepts, plus 3 more sections
  • Calls curl; reaches orkg.org

What it does

Orkg API is an agent skill from wentorai/research-plugins. Query the Open Research Knowledge Graph for structured research data

Its SKILL.md is about 1.3k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Knowledge Management, covering Knowledge graphs. The repository describes itself as: 350+ academic research skills, MCP configs, and plugins for Research-Claw and AI agents. The licence is MIT.

When your agent uses it

  • Tasks that involve Knowledge graphs

Example prompts

  • “/orkg-api”

Requirements

  • Python 3

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. Literature surveys: Find existing comparisons to quickly understand a field
  2. Method selection: Compare methods across papers on structured criteria
  3. Gap analysis: Identify research problems without solutions
  4. Reproducibility: Access structured descriptions of experimental setups

What it can do on your machine

Read from SKILL.md and the folder at commit bf44b3c. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • curl

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • orkg.org

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Orkg API loads about 1.3k tokens when it runs. Until then it costs about 19 tokens; SKILL.md has 260 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~19
When it runs · the whole SKILL.md, loaded when a task matches
~1.3k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from wentorai/research-plugins at commit bf44b3c, republished under its MIT licence (© wentorai). 260 words, ~1,294 tokens.

Download SKILL.mdSave it as .claude/skills/orkg-api/SKILL.md (or your agent's skills folder).
name
orkg-api
description
Query the Open Research Knowledge Graph for structured research data

Open Research Knowledge Graph (ORKG) API

Overview

The Open Research Knowledge Graph (ORKG) transforms unstructured scholarly articles into structured, machine-readable research contributions. Unlike traditional databases that store metadata (title, authors, DOI), ORKG captures the semantic content — research problems, methods, results, and their relationships. The REST API enables querying, creating, and comparing research contributions programmatically. Free, no authentication required for read operations.

API Endpoints

Base URL
https://orkg.org/api/
Search Papers
bash
# Search papers in ORKG
curl "https://orkg.org/api/papers?q=climate+change+adaptation&size=20"

# Get paper details by ID
curl "https://orkg.org/api/papers/R12345"
Search Resources
bash
# Search any resource (papers, predicates, comparisons)
curl "https://orkg.org/api/resources?q=machine+learning&size=20"

# Filter by class
curl "https://orkg.org/api/resources?q=BERT&exact=false&classes=Paper"
Comparisons

ORKG's unique feature — structured side-by-side comparison of papers:

bash
# List comparisons
curl "https://orkg.org/api/comparisons?size=10"

# Get a specific comparison
curl "https://orkg.org/api/comparisons/R54321"

# Search comparisons
curl "https://orkg.org/api/comparisons?q=sentiment+analysis"
Research Contributions
bash
# Get contributions of a paper
curl "https://orkg.org/api/papers/R12345/contributions"

# A contribution describes what a paper contributes:
# - Research problem addressed
# - Method used
# - Results achieved
# - Materials/datasets used

Python Usage

python
import requests

BASE_URL = "https://orkg.org/api"

def search_orkg_papers(query: str, size: int = 20) -> list:
    """Search papers in the Open Research Knowledge Graph."""
    resp = requests.get(f"{BASE_URL}/papers", params={"q": query, "size": size})
    resp.raise_for_status()
    data = resp.json()

    papers = []
    for item in data.get("content", []):
        papers.append({
            "id": item.get("id"),
            "title": item.get("title"),
            "created": item.get("created_at"),
            "contributions": item.get("contributions", [])
        })
    return papers

def get_paper_contributions(paper_id: str) -> dict:
    """Get structured research contributions for a paper."""
    resp = requests.get(f"{BASE_URL}/papers/{paper_id}/contributions")
    resp.raise_for_status()
    return resp.json()

def search_comparisons(topic: str) -> list:
    """Find structured paper comparisons on a topic."""
    resp = requests.get(f"{BASE_URL}/comparisons", params={"q": topic, "size": 10})
    resp.raise_for_status()
    return resp.json().get("content", [])

# Example usage
papers = search_orkg_papers("transfer learning NLP")
for p in papers:
    print(f"[{p['id']}] {p['title']}")

comparisons = search_comparisons("named entity recognition")
for c in comparisons:
    print(f"Comparison: {c.get('title')} ({len(c.get('contributions', []))} papers)")

Key Concepts

ConceptDescriptionExample
PaperA scholarly article with metadata"Attention Is All You Need"
ContributionWhat a paper contributes to knowledge"Proposes self-attention mechanism"
Research ProblemThe problem a contribution addresses"Machine translation quality"
PredicateA relationship type"has_method", "has_result", "uses_dataset"
ComparisonSide-by-side structured comparison"Transformer variants comparison"
ResourceAny entity in the knowledge graphA method, dataset, metric, or concept

ORKG vs Traditional Databases

FeatureTraditional (S2, Crossref)ORKG
ContentMetadata (title, DOI, citations)Semantic content (methods, results)
StructureFlat recordsKnowledge graph with relationships
ComparisonManual (read each paper)Automated structured comparisons
Machine-readableBibliographic metadata onlyResearch contributions structured
CoverageBroad (200M+ papers)Deep but narrower (~50K papers)

Use Cases

  1. Literature surveys: Find existing comparisons to quickly understand a field
  2. Method selection: Compare methods across papers on structured criteria
  3. Gap analysis: Identify research problems without solutions
  4. Reproducibility: Access structured descriptions of experimental setups

References

© wentorai, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/literature/metadata/orkg-api of wentorai/research-plugins.

Open the folder on GitHubat commit bf44b3c

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in wentorai/research-plugins, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Orkg API next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Orkg API compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Orkg API this skillwentorai/research-plugins2981 repos~1.3kAutomated safety check: PassMIT
Obsidian Canvas BoardsAgriciDaniel/claude-obsidian15k—~1.4kAutomated safety check: PassMIT
Ontology1mancompany/OneManCompany4412 repos~1.5kAutomated safety check: PassApache-2.0
Knowledge Graphgnomeria/usbtree691—~1.5kAutomated safety check: PassMIT
Graphagenticnotetaking/arscontexta3.5k—~4.9kAutomated safety check: NotesMIT
LLM Wiki Knowledge GraphEgonex-AI/Understand-Anything86k—~1.5kAutomated safety check: PassMIT

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Questions about Orkg API

What does Orkg API do?

Query the Open Research Knowledge Graph for structured research data. Orkg API is an agent skill from wentorai/research-plugins.

When should I use Orkg API?

Orkg API fits situations like: tasks that involve Knowledge graphs.

How do I install Orkg API in Claude Code?

Run `npx skills add wentorai/research-plugins --skill orkg-api -a claude-code`. Or copy the skill folder (skills/literature/metadata/orkg-api in wentorai/research-plugins) into .claude/skills/orkg-api in your project. Claude Code loads it when a task matches its description.

How do I install Orkg API in Codex?

Run `npx skills add wentorai/research-plugins --skill orkg-api -a codex`. Or copy the skill folder (skills/literature/metadata/orkg-api in wentorai/research-plugins) into .agents/skills/orkg-api in your project. Codex loads it when a task matches its description.

Can I use Orkg API in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add wentorai/research-plugins --skill orkg-api -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/orkg-api, .gemini/skills/orkg-api, .github/skills/orkg-api and .opencode/skills/orkg-api in your project.

What does Orkg API need to run?

Going by SKILL.md and its folder, Orkg API needs the command-line tools its instructions call (curl). Our summary lists: Python 3.

Does Orkg API access the network?

SKILL.md names 1 domain. In commands or code: orkg.org; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.

Is Orkg API safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Orkg API use?

Orkg API is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Orkg API use?

About 1.3k tokens (SKILL.md is roughly 5.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Orkg API?

Skills that share tags, products or a category with Orkg API: Obsidian Canvas Boards (AgriciDaniel/claude-obsidian, 15k stars), Ontology (1mancompany/OneManCompany, 441 stars), Knowledge Graph (gnomeria/usbtree, 691 stars) and Graph (agenticnotetaking/arscontexta, 3.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Orkg API?

wentorai (a GitHub user) maintains it in wentorai/research-plugins, which has 298 GitHub stars. The repository holds 405 skills in this directory. The repository was last updated on June 19, 2026.

Source: wentorai/research-plugins on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.