Code of Paper

io.github.isagelswannPublished by GitHub account isagelswannv0.3.2Updated Oct 24, 2026

Find GitHub implementations of arXiv research papers — paper lookup, ranked code, search.

VerifiedSTDIODesktop onlyKnowledge & Memory Developer Tools

Server details

Identifier: io.github.isagelswann/codeofpaper
Transport: STDIO
Runtime: Desktop only
Trust: Verified
Published: Sep 16, 2026

Security note

MCP servers receive tool arguments from a conversation and may perform external actions. Review what a server can do before you enable it, and give it only the access it needs.

The registry verified the GitHub account isagelswann for this listing. That does not show the account is the product's maker.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

Add a badge to your README

Show readers this MCP server is listed on SourceWeft. The badge links to this page.

[![Listed on SourceWeft](https://sourceweft.com/badge/mcp/io.github.isagelswann%2Fcodeofpaper.svg)](https://sourceweft.com/mcp/io.github.isagelswann%2Fcodeofpaper?utm_source=readme&utm_medium=badge)

Overview

AI-generated overview

Code of Paper lets an assistant look up arXiv papers and find their GitHub implementations, with paper details, ranked code repositories and full-text search.

What you can do: Look up papers: fetch metadata and confident-tier implementation repos by arXiv ID or full URL.
When to use it: Use it when you need to go from an arXiv paper to its GitHub implementations, compare candidate repositories for one paper, or filter papers with code by topic, year or venue. Suited to literature reviews, picking a repo before reproducing results, and scripted workflows that want structured JSON.
Requirements: Runs locally over stdio via uvx from the PyPI package codeofpaper (Python 3.10 or newer). Connects to api.codeofpaper.com by default, overridable with the CODEOFPAPER_API_URL environment variable; anonymous use is limited to 60 requests per minute and needs no API key. Network access required.

Before you install

All tools are read-only and do not modify data. Queries and paper IDs are sent to a third-party API (api.codeofpaper.com by default), or to whatever endpoint CODEOFPAPER_API_URL points at. The anonymous quota is limited, so heavy use will hit rate limits.

Installation

In SourceWeft

Open Code of Paper in the dashboard and add it to a workspace.
Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

Code of Paper CLI

Maintenance mode. This CLI and MCP server are not actively developed. They keep working as long as api.codeofpaper.com is up; issues may go unanswered.

Discover GitHub implementations of research papers — from the terminal.

Search 181k+ arXiv papers and find their code on GitHub. Works for humans and AI agents alike.

[PyPI] [Python 3.10+] [License: MIT]

Install

Or with pipx for isolated installs:

Requires Python 3.10+. No API key needed — works anonymously at 60 requests/minute.

Quick Start

bash

# Search for paperscodeofpaper search "vision transformers"
# Get paper details (arXiv IDs or full URLs both work)codeofpaper paper 2010.11929codeofpaper paper https://arxiv.org/abs/2010.11929
# Find code implementationscodeofpaper code 1706.03762
# Browse trending papers with codecodeofpaper trending --has-code
# JSON output for scripts and agentscodeofpaper -o json trending | jq '.trending[] | {title, stars: .max_stars}'
# One-shot reproducibility context for an agent: paper + confident repos# (with tier + framework + license) + fork-graph in a single JSON payload.codeofpaper -o json paper 2010.11929 | jq '{title, repos: [.repos[] | {full_name, tier}], forks: [.fork_graph[] | .full_name]}'
# Literature review in one commandcodeofpaper research "reinforcement learning" --depth deep

# Search for paperscodeofpaper search "vision transformers"
# Get paper details (arXiv IDs or full URLs both work)codeofpaper paper 2010.11929codeofpaper paper https://arxiv.org/abs/2010.11929
# Find code implementationscodeofpaper code 1706.03762
# Browse trending papers with codecodeofpaper trending --has-code
# JSON output for scripts and agentscodeofpaper -o json trending | jq '.trending[] | {title, stars: .max_stars}'
# One-shot reproducibility context for an agent: paper + confident repos# (with tier + framework + license) + fork-graph in a single JSON payload.codeofpaper -o json paper 2010.11929 | jq '{title, repos: [.repos[] | {full_name, tier}], forks: [.fork_graph[] | .full_name]}'
# Literature review in one commandcodeofpaper research "reinforcement learning" --depth deep

Output Formats

Use -o / --output before the subcommand:

bash

codeofpaper -o json paper 2010.11929codeofpaper -o quiet search "attention" | head -5codeofpaper -o csv trending --has-code > papers.csv

codeofpaper -o json paper 2010.11929codeofpaper -o quiet search "attention" | head -5codeofpaper -o csv trending --has-code > papers.csv

Format	Flag	Use case
Table	`-o table`	Human reading (default)
JSON	`-o json`	Scripts, `jq` pipelines, full response data
Quiet	`-o quiet`	IDs only, one per line — pipe into other commands
JSONL	`-o jsonl`	Streaming, append to files, batch processing
BibTeX	`-o bibtex`	Citation managers, LaTeX bibliographies
CSV	`-o csv`	Spreadsheets, pandas, data analysis

The shorthand -q is equivalent to -o quiet:

You can set a default format via config so you don't need -o every time:

Commands

Discovery

Command	Description	Example
`search`	Full-text paper search	`codeofpaper search "vision transformers" --has-code`
`paper`	Paper details by arXiv ID or URL	`codeofpaper paper 2010.11929`
`code`	GitHub repos implementing a paper	`codeofpaper code 1706.03762`
`similar`	Semantically similar papers	`codeofpaper similar 2010.11929`
`suggest`	Autocomplete / quick lookup	`codeofpaper suggest "attention"`
`random`	Random interesting paper	`codeofpaper random --quality high`

Browsing

Command	Description	Example
`trending`	Trending papers by category	`codeofpaper trending --category cs.CV --sort hot`
`categories`	List categories or get details	`codeofpaper categories cs.AI`
`conferences`	List all conference series	`codeofpaper conferences`
`conference`	Papers from a specific conference	`codeofpaper conference neurips_2024 --has-code`
`code-drops`	Recent conference papers with new code	`codeofpaper code-drops --days 7`
`repo`	Reverse lookup: repo → paper	`codeofpaper repo google-research/vision_transformer`
`open`	Open paper or repo in browser	`codeofpaper open 2010.11929 --code`

Bulk Operations

Command	Description	Example
`research`	Structured research overview	`codeofpaper research "RL" --depth deep`
`batch`	Process multiple IDs from stdin/file	`cat ids.txt \| codeofpaper batch paper`
`export`	Paginated bulk export	`codeofpaper export trending -o csv > out.csv`

Configuration

Command Details

search

bash

codeofpaper search "reinforcement learning" --sort has_code --has-codecodeofpaper search "GAN" --limit 20 --offset 10

codeofpaper search "reinforcement learning" --sort has_code --has-codecodeofpaper search "GAN" --limit 20 --offset 10

Options: --limit, --offset, --sort (relevant, recent, has_code), --has-code, --category.

research

Multi-step orchestrated overview of a research topic:

batch

Process multiple queries or IDs from a file or stdin. Always outputs JSONL regardless of -o:

bash

# From a filecodeofpaper batch paper ids.txt
# From stdinecho -e "2010.11929\n1706.03762" | codeofpaper batch paper
# Pipe from another commandcodeofpaper -q similar 2010.11929 | codeofpaper batch code

# From a filecodeofpaper batch paper ids.txt
# From stdinecho -e "2010.11929\n1706.03762" | codeofpaper batch paper
# Pipe from another commandcodeofpaper -q similar 2010.11929 | codeofpaper batch code

Supported commands: paper, search, code, similar, suggest.

Each line produces one JSON object:

json

{"input": "2010.11929", "status": "ok", "data": {...}}{"input": "9999.99999", "status": "error", "error": "Not found"}

{"input": "2010.11929", "status": "ok", "data": {...}}{"input": "9999.99999", "status": "error", "error": "Not found"}

Options: --delay (seconds between calls, default 0.5).

export

Paginated bulk export from trending, conference, or search:

bash

codeofpaper export trending --category cs.CV --has-code -o csv > cv.csvcodeofpaper export conference neurips_2024 --has-code -o bibtex > neurips.bibcodeofpaper export search "transformers" --max 500 -o jsonl > data.jsonl

codeofpaper export trending --category cs.CV --has-code -o csv > cv.csvcodeofpaper export conference neurips_2024 --has-code -o bibtex > neurips.bibcodeofpaper export search "transformers" --max 500 -o jsonl > data.jsonl

Auto-paginates through results (100 per page, 0.5s delay). Options: --max (default 200), --has-code, --category, --days.

Agent Integration

The CLI is designed for AI agent consumption. Key features:

Stable Exit Codes

Agents can branch on exit codes without parsing error messages:

Exit Code	Meaning	Agent Action
0	Success	Parse stdout
1	General error	Log and report
2	Connection error	Retry with backoff
3	Not found (404)	Skip or try different ID
4	Rate limited (429)	Wait and retry
5	Auth required (401/403)	Run `codeofpaper auth setup`

Machine-Readable Output

bash

# JSON for structured parsingcodeofpaper -o json paper 2010.11929 | jq '.title'
# Quiet mode for ID listscodeofpaper -q search "attention" | head -5
# JSONL for streamingcodeofpaper -o jsonl trending --has-code | while read -r line; do  echo "$line" | jq -r '.arxiv_id'done

# JSON for structured parsingcodeofpaper -o json paper 2010.11929 | jq '.title'
# Quiet mode for ID listscodeofpaper -q search "attention" | head -5
# JSONL for streamingcodeofpaper -o jsonl trending --has-code | while read -r line; do  echo "$line" | jq -r '.arxiv_id'done

HTTP Cache

Responses are cached on disk for 30 minutes (~/.cache/codeofpaper/http/), so repeated calls are instant and free.

MCP Server (optional)

Code of Paper ships an optional Model Context Protocol server that exposes paper / code lookup as tools to any MCP-compatible agent — Claude Desktop, Cursor, Continue, Cline, Zed, etc.

Install with the mcp extra:

This adds a codeofpaper-mcp entry point that speaks MCP over stdio.

Wire into Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS), %APPDATA%\Claude\claude_desktop_config.json (Windows), or ~/.config/Claude/claude_desktop_config.json (Linux):

json

{  "mcpServers": {    "codeofpaper": {      "command": "uvx",      "args": ["--from", "codeofpaper[mcp]", "codeofpaper-mcp"]    }  }}

{  "mcpServers": {    "codeofpaper": {      "command": "uvx",      "args": ["--from", "codeofpaper[mcp]", "codeofpaper-mcp"]    }  }}

This pulls + runs the server on demand — no global install needed. If you've already pip install'd the package, you can replace the command with just "codeofpaper-mcp" and drop args.

Wire into Cursor / Continue / Cline

Most MCP clients accept the same shape:

json

{  "mcpServers": {    "codeofpaper": {      "command": "codeofpaper-mcp",      "env": {        "CODEOFPAPER_API_URL": "https://api.codeofpaper.com"      }    }  }}

{  "mcpServers": {    "codeofpaper": {      "command": "codeofpaper-mcp",      "env": {        "CODEOFPAPER_API_URL": "https://api.codeofpaper.com"      }    }  }}

Tools exposed

Tool	Purpose
`paper_lookup(paper_id_or_url)`	Paper metadata + confident-tier repos
`code_for_paper(paper_id_or_url, limit, include_possible)`	Ranked GitHub repos implementing a paper
`search_papers(query, limit, year, venue, has_code)`	Free-text paper search with filters

All tools are read-only, return plain JSON, and surface API errors as {"error": "...", "status": N} rather than throwing — agents get structured output either way.

Common Workflows

Core Discovery

bash

# Find papers with code about a topiccodeofpaper search "reinforcement learning" --sort has_code --has-code
# Get the best repo for a specific papercodeofpaper code 1706.03762
# Accepts arXiv URLs — no need to extract the IDcodeofpaper paper https://arxiv.org/abs/2010.11929
# Reverse lookup: what paper does this repo implement?codeofpaper repo google-research/vision_transformer
# Open a paper in the browser, or jump straight to its codecodeofpaper open 2010.11929codeofpaper open 2010.11929 --code

# Find papers with code about a topiccodeofpaper search "reinforcement learning" --sort has_code --has-code
# Get the best repo for a specific papercodeofpaper code 1706.03762
# Accepts arXiv URLs — no need to extract the IDcodeofpaper paper https://arxiv.org/abs/2010.11929
# Reverse lookup: what paper does this repo implement?codeofpaper repo google-research/vision_transformer
# Open a paper in the browser, or jump straight to its codecodeofpaper open 2010.11929codeofpaper open 2010.11929 --code

Browsing & Monitoring

bash

# What's trending in computer vision?codeofpaper trending --category cs.CV --sort hot
# Conference papers that just got new codecodeofpaper code-drops --days 7
# NeurIPS 2024 oral papers with codecodeofpaper conference neurips_2024 --track oral --has-code
# Daily monitoring: what's new in my field?codeofpaper trending --category cs.CV --days 1 -o json >> ~/research/daily_cv.jsonl

# What's trending in computer vision?codeofpaper trending --category cs.CV --sort hot
# Conference papers that just got new codecodeofpaper code-drops --days 7
# NeurIPS 2024 oral papers with codecodeofpaper conference neurips_2024 --track oral --has-code
# Daily monitoring: what's new in my field?codeofpaper trending --category cs.CV --days 1 -o json >> ~/research/daily_cv.jsonl

Composable Pipelines

bash

# Find implementations of a paper's related workcodeofpaper similar 2010.11929 -o quiet | codeofpaper batch code
# Batch process a reading listcat reading_list.txt | codeofpaper batch paper > enriched.jsonl
# Cross-reference with GitHub CLIcodeofpaper code 1706.03762 -o quiet | head -1 | xargs gh repo view
# Export conference papers as BibTeXcodeofpaper export conference neurips_2024 --has-code -o bibtex > neurips2024_code.bib
# Bulk export a category for meta-analysiscodeofpaper export trending --category cs.CV --has-code --days 365 -o csv > cv_with_code.csv

# Find implementations of a paper's related workcodeofpaper similar 2010.11929 -o quiet | codeofpaper batch code
# Batch process a reading listcat reading_list.txt | codeofpaper batch paper > enriched.jsonl
# Cross-reference with GitHub CLIcodeofpaper code 1706.03762 -o quiet | head -1 | xargs gh repo view
# Export conference papers as BibTeXcodeofpaper export conference neurips_2024 --has-code -o bibtex > neurips2024_code.bib
# Bulk export a category for meta-analysiscodeofpaper export trending --category cs.CV --has-code --days 365 -o csv > cv_with_code.csv

Multi-Step Scripts

bash

# Find a paper → get top repo → clone itREPO=$(codeofpaper search "attention is all you need" -o quiet | head -1 | \  xargs codeofpaper code -o json | jq -r '.top_repos[0].full_name')gh repo clone "$REPO"
# Discover a random paper and explore its neighborhoodID=$(codeofpaper random --quality high -o quiet)codeofpaper paper "$ID"codeofpaper similar "$ID"codeofpaper code "$ID"
# Quick paper lookup in a scriptARXIV_ID="2010.11929"TITLE=$(codeofpaper -o json paper "$ARXIV_ID" | jq -r '.title')echo "Paper: $TITLE"

# Find a paper → get top repo → clone itREPO=$(codeofpaper search "attention is all you need" -o quiet | head -1 | \  xargs codeofpaper code -o json | jq -r '.top_repos[0].full_name')gh repo clone "$REPO"
# Discover a random paper and explore its neighborhoodID=$(codeofpaper random --quality high -o quiet)codeofpaper paper "$ID"codeofpaper similar "$ID"codeofpaper code "$ID"
# Quick paper lookup in a scriptARXIV_ID="2010.11929"TITLE=$(codeofpaper -o json paper "$ARXIV_ID" | jq -r '.title')echo "Paper: $TITLE"

Configuration

Config is stored as JSON via platformdirs:

Fields:

json

{  "api_url": "https://api.codeofpaper.com",  "api_key": null,  "default_format": "table",  "ca_bundle": null}

{  "api_url": "https://api.codeofpaper.com",  "api_key": null,  "default_format": "table",  "ca_bundle": null}

No config file needed — everything works out of the box with sensible defaults.

Priority Chain

Options are resolved in this order (first wins):

CLI flag (--api-url, --api-key, --ca-bundle, -o)
Environment variable (CODEOFPAPER_API_URL, CODEOFPAPER_API_KEY, CODEOFPAPER_CA_BUNDLE, CODEOFPAPER_OUTPUT, CODEOFPAPER_TIMEOUT)
Config file
Built-in defaults

Corporate Proxies / Custom TLS Certificates

If you're behind a corporate proxy that performs TLS inspection (man-in-the-middle), you'll see an SSL error like:

Cannot reach API: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain

Cannot reach API: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain

To fix this, point the CLI at your corporate CA certificate bundle (PEM file). Three equivalent ways, in priority order:

bash

# 1. CLI flag (per-invocation)codeofpaper --ca-bundle /path/to/corporate-ca.pem search "transformers"
# 2. Environment variable (per-session or in .bashrc/.zshrc)export CODEOFPAPER_CA_BUNDLE=/path/to/corporate-ca.pem
# 3. Config file (permanent — set once, forget)# Add to ~/.config/codeofpaper/config.json:#   {"ca_bundle": "/path/to/corporate-ca.pem"}

# 1. CLI flag (per-invocation)codeofpaper --ca-bundle /path/to/corporate-ca.pem search "transformers"
# 2. Environment variable (per-session or in .bashrc/.zshrc)export CODEOFPAPER_CA_BUNDLE=/path/to/corporate-ca.pem
# 3. Config file (permanent — set once, forget)# Add to ~/.config/codeofpaper/config.json:#   {"ca_bundle": "/path/to/corporate-ca.pem"}

Ask your IT department for the CA certificate file if you don't have it.

Tip: If you've already set SSL_CERT_FILE for other tools (pip, curl, etc.), httpx respects that variable automatically — no extra configuration needed.

Alias: `cop`

Both codeofpaper and cop are installed as entry points:

Note: If cop conflicts with another tool on your system, use codeofpaper instead.

Shell Completion

Install tab completion for your shell:

Supports bash, zsh, fish, and PowerShell. After installing, restart your shell or source the completion file.

Help

bash

codeofpaper --help          # List all commandscodeofpaper search --help   # Help for a specific commandcodeofpaper -v              # Print version

codeofpaper --help          # List all commandscodeofpaper search --help   # Help for a specific commandcodeofpaper -v              # Print version

License

MIT

Source: README.md at commit f4d05fd

Tools

SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

v0.3.2LatestSep 16, 2026

Score

50% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 days25 pts
Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.
Auth declared10 pts
Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.
Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
License10 pts

Command	Description	Example
`auth`	Manage API key (setup/status/clear)	`codeofpaper auth status`
`status`	Check API health and stats	`codeofpaper status`

Depth	Steps	API calls
`shallow`	Search only + landscape statistics	1
`medium`	Search + repos for top papers (default)	~6
`deep`	Search + repos + similar papers from #1	~8

OS	Path
Linux	`~/.config/codeofpaper/config.json`
macOS	`~/Library/Application Support/codeofpaper/config.json`
Windows	`%APPDATA%\codeofpaper\config.json`

Code of Paper

Overview

Installation

In SourceWeft

Other MCP clients

README

Code of Paper CLI

Install

Quick Start

Output Formats

Commands

Discovery

Browsing

Bulk Operations

Configuration

Command Details

search

research

batch

export

Agent Integration

Stable Exit Codes

Machine-Readable Output

HTTP Cache

MCP Server (optional)

Wire into Claude Desktop

Wire into Cursor / Continue / Cline

Tools exposed

Common Workflows

Core Discovery

Browsing & Monitoring

Composable Pipelines

Multi-Step Scripts

Configuration

Priority Chain

Corporate Proxies / Custom TLS Certificates

Alias: cop

Shell Completion

Help

Links

License

Tools

Version history

Score

Alias: `cop`