MCP Server Builder
anthropics/skills
Guides the design and implementation of Model Context Protocol servers in TypeScript or Python, from tool naming and error messages to evaluation.
Install and configure the Starknet MCP server for Claude Code
Install Install Starknet MCP
$ npx skills add starkware-libs/starknet-specs --skill install-starknet-mcp -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install starkware-libs/starknet-specs install-starknet-mcp --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/starkware-libs/starknet-specs.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/install-starknet-mcp .claude/skills/install-starknet-mcp && rm -rf skills-srcUse ~/.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/
Install the "install-starknet-mcp" agent skill from https://github.com/starkware-libs/starknet-specs/tree/master/.claude/skills/install-starknet-mcp into .claude/skills/install-starknet-mcp/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "install-starknet-mcp", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/starkware-libs/starknet-specs/tree/master/.claude/skills/install-starknet-mcpType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add starkware-libs/starknet-specs --skill install-starknet-mcp -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install starkware-libs/starknet-specs install-starknet-mcp --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/starkware-libs/starknet-specs.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/install-starknet-mcp .agents/skills/install-starknet-mcp && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "install-starknet-mcp" agent skill from https://github.com/starkware-libs/starknet-specs/tree/master/.claude/skills/install-starknet-mcp into .agents/skills/install-starknet-mcp/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "install-starknet-mcp", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add starkware-libs/starknet-specs --skill install-starknet-mcp -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install starkware-libs/starknet-specs install-starknet-mcp --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/starkware-libs/starknet-specs.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/install-starknet-mcp .cursor/skills/install-starknet-mcp && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "install-starknet-mcp" agent skill from https://github.com/starkware-libs/starknet-specs/tree/master/.claude/skills/install-starknet-mcp into .cursor/skills/install-starknet-mcp/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "install-starknet-mcp", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/starkware-libs/starknet-specs.git --path .claude/skills/install-starknet-mcp--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add starkware-libs/starknet-specs --skill install-starknet-mcp -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install starkware-libs/starknet-specs install-starknet-mcp --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/starkware-libs/starknet-specs.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/install-starknet-mcp .gemini/skills/install-starknet-mcp && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "install-starknet-mcp" agent skill from https://github.com/starkware-libs/starknet-specs/tree/master/.claude/skills/install-starknet-mcp into .gemini/skills/install-starknet-mcp/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "install-starknet-mcp", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install starkware-libs/starknet-specs install-starknet-mcpInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add starkware-libs/starknet-specs --skill install-starknet-mcp -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/starkware-libs/starknet-specs.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/install-starknet-mcp .github/skills/install-starknet-mcp && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "install-starknet-mcp" agent skill from https://github.com/starkware-libs/starknet-specs/tree/master/.claude/skills/install-starknet-mcp into .github/skills/install-starknet-mcp/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "install-starknet-mcp", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add starkware-libs/starknet-specs --skill install-starknet-mcp -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install starkware-libs/starknet-specs install-starknet-mcp --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/starkware-libs/starknet-specs.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/install-starknet-mcp .opencode/skills/install-starknet-mcp && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "install-starknet-mcp" agent skill from https://github.com/starkware-libs/starknet-specs/tree/master/.claude/skills/install-starknet-mcp into .opencode/skills/install-starknet-mcp/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "install-starknet-mcp", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
install-starknet-mcp- GitHub stars
- 115
- Token cost
- ~421 tokens
- SKILL.md length
- 212 words
- Files
- 1
- Skills in repo
- 1
- Repo updated
- First seen
- Licence
- None found
At a glance
Install and configure the Starknet MCP server for Claude Code
- Works in 6 steps: The user should provide their Starknet… → Install the Python dependencies → Ask the user which scope they want → …
- Tasks that involve MCP servers
- Calls claude and pip
What it does
Install Starknet MCP is an agent skill from starkware-libs/starknet-specs. Install and configure the Starknet MCP server for Claude Code
Its SKILL.md is about 420 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 Agent Workflows, covering MCP servers. It works with Model Context Protocol and Python.
When your agent uses it
- Tasks that involve MCP servers
Example prompts
- “/install-starknet-mcp”
Requirements
- Python 3
- Pre-approved tools (allowed-tools): Bash, Read
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- The user should provide their Starknet JSON-RPC endpoint URL as $ARGUMENTS. If no argument was given, ask the user for their RPC URL. It…
- Install the Python dependencies
- Ask the user which scope they want
- Register the MCP server with Claude Code using the chosen scope. Note that --env must come before -- so Claude sets it in the server's…
- Verify the server is registered by running
- Tell the user the installation is complete and they should restart Claude Code for the new MCP server to take effect. List a few example…
What it can do on your machine
Read from SKILL.md and the folder at commit e1ff1fb. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
BashRead
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
claudepip
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use pip, which can reach the network depending on how they are called.
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
Install Starknet MCP loads about 421 tokens when it runs. Until then it costs about 21 tokens; SKILL.md has 212 words of instructions outside code blocks.
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: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
allowed-tools: Bash, Read
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
Without a licence we can't republish the file, so here is its outline and opening line. It has 212 words (~421 tokens).
“Set up the Starknet MCP server so Claude can query a live Starknet node.”
- name
- install-starknet-mcp
- allowed-tools
- Bash, Read
- argument-hint
- <rpc-url>
Files
Just SKILL.md in .claude/skills/install-starknet-mcp of starkware-libs/starknet-specs.
Open the folder on GitHubat commit e1ff1fb
Compare with similar skills
Install Starknet MCP 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Install Starknet MCP this skillstarkware-libs/starknet-specs | 115 | — | ~421 | Automated safety check: Notes | None | |
| MCP Server Builderanthropics/skills | 180k | 63 repos | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| MCP Server BuildershareAI-lab/learn-claude-code | 78k | 5 repos | ~1.2k | Automated safety check: Pass | MIT | |
| MemPalace Setup and OperationMemPalace/mempalace | 59k | — | ~2.2k | Automated safety check: Pass | MIT | |
| FastmcpTommy-yw/RunbookHermes | 546 | 3 repos | ~2.1k | Automated safety check: Pass | MIT | |
| Fastmcp Client CLIPrefectHQ/fastmcp | 28k | — | ~823 | Automated safety check: Pass | Apache-2.0 |
Similar skills
- Official
MCP Server Builder
shareAI-lab/learn-claude-code
Walks through building MCP servers in Python or TypeScript that expose tools, resources and prompts to Claude, with templates, registration and testing.
MemPalace Setup and Operation
MemPalace/mempalace
Installs and configures MemPalace as a private local palace, a shared-brain hub or a client of an existing hub, including MCP registration and version-correct initialization.
Fastmcp
Tommy-yw/RunbookHermes
Build, test, inspect, install, and deploy MCP servers with FastMCP in Python.
Fastmcp Client CLI
PrefectHQ/fastmcp
Query and invoke tools on MCP servers using fastmcp list and fastmcp call.
Migrate To Archestra
archestra-ai/archestra
Migrate an existing agentic PoC/pilot (Claude Code project files, MCP configs, hooks, local tools, openclaw config, or similar hand-rolled setup artifacts) into an Archestra instance.
Related
Works with
Categories
Questions about Install Starknet MCP
What does Install Starknet MCP do?
Install and configure the Starknet MCP server for Claude Code. Install Starknet MCP is an agent skill from starkware-libs/starknet-specs.
When should I use Install Starknet MCP?
Install Starknet MCP fits situations like: tasks that involve MCP servers.
How do I install Install Starknet MCP in Claude Code?
Run `npx skills add starkware-libs/starknet-specs --skill install-starknet-mcp -a claude-code`. Or copy the skill folder (.claude/skills/install-starknet-mcp in starkware-libs/starknet-specs) into .claude/skills/install-starknet-mcp in your project. Claude Code loads it when a task matches its description.
How do I install Install Starknet MCP in Codex?
Run `npx skills add starkware-libs/starknet-specs --skill install-starknet-mcp -a codex`. Or copy the skill folder (.claude/skills/install-starknet-mcp in starkware-libs/starknet-specs) into .agents/skills/install-starknet-mcp in your project. Codex loads it when a task matches its description.
Can I use Install Starknet MCP 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 starkware-libs/starknet-specs --skill install-starknet-mcp -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/install-starknet-mcp, .gemini/skills/install-starknet-mcp, .github/skills/install-starknet-mcp and .opencode/skills/install-starknet-mcp in your project.
What does Install Starknet MCP need to run?
Going by SKILL.md and its folder, Install Starknet MCP needs the command-line tools its instructions call (claude and pip). Our summary lists: Python 3. Its frontmatter pre-approves these tools: Bash, Read.
Does Install Starknet MCP access the network?
SKILL.md contains no URLs. Its commands use pip, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Install Starknet MCP safe to install?
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does Install Starknet MCP use?
No licence was found for Install Starknet MCP or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Install Starknet MCP use?
About 421 tokens (SKILL.md is roughly 1.7k 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 Install Starknet MCP?
Skills that share tags, products or a category with Install Starknet MCP: MCP Server Builder (anthropics/skills, 180k stars), MCP Server Builder (shareAI-lab/learn-claude-code, 78k stars), MemPalace Setup and Operation (MemPalace/mempalace, 59k stars) and Fastmcp (Tommy-yw/RunbookHermes, 546 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Install Starknet MCP?
starkware-libs (a GitHub organization) maintains it in starkware-libs/starknet-specs, which has 115 GitHub stars. The repository was last updated on September 24, 2026.
Source: starkware-libs/starknet-specs on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.