stellar-mcp

stellar-mcp is a skill for Claude Code from rylsherdamz-rgb/stellar-forge. It costs 61 tokens per session (735 once invoked), scanned A, original, MIT.

A collection of MCP tools for developing on Stellar, a blockchain network, with access to chain data, project files, GitHub, and browser tests.

In plain words
What is it for?
Use it to check accounts and contract data, simulate or submit transactions, inspect events, manage repositories, edit files, and run end-to-end tests.
Why use it?
It lets an agent inspect and test Stellar applications through configured tools instead of building each connection separately.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the stellar-forge plugin — 31 skills, 4 commands, 6 agents, 4 MCP servers shipped together

Good fit Use it to check accounts and contract data, simulate or submit transactions, inspect events, manage repositories, edit files, and run end-to-end tests.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/rylsherdamz-rgb/stellar-forge/stellar-mcp
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add rylsherdamz-rgb/stellar-forge --skill stellar-mcp
Clone the repo
git clone --depth 1 https://github.com/rylsherdamz-rgb/stellar-forge

Made for: Claude Code.

Or install stellar-forge, the plugin that ships this one along with the rest of its 31 skills, 4 commands, 6 agents, 4 MCP servers.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for stellar-mcp

README.md
[![agentmods](https://agentmods.dev/badge/skills/rylsherdamz-rgb/stellar-forge/stellar-mcp/github.svg)](https://agentmods.dev/skills/rylsherdamz-rgb/stellar-forge/stellar-mcp)
Your own site
<a href="https://agentmods.dev/skills/rylsherdamz-rgb/stellar-forge/stellar-mcp"><img src="https://agentmods.dev/badge/skills/rylsherdamz-rgb/stellar-forge/stellar-mcp/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for stellar-mcp

Your own site · 80×15
<a href="https://agentmods.dev/skills/rylsherdamz-rgb/stellar-forge/stellar-mcp"><img src="https://agentmods.dev/badge/skills/rylsherdamz-rgb/stellar-forge/stellar-mcp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 735 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Memory Poisoning · line 78
    Skill attempts to fill the context window with filler content, displacing legitimate instructions and safety constraints. This can degrade agent performance or bypass safety boundaries.
    Fix: Implement context-window management that detects and rejects padding or stuffing attempts. Prioritize system instructions over user-injected content.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00061 $0.00735
Opus 5 $0.00030 $0.00367
Sonnet 5 $0.00012 $0.00147
Haiku 4.5 $0.00006 $0.00073

Measured 12d ago against content hash 3e39e6fb7584, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

stellar-mcp scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/stellar-mcp/SKILL.md · 101 lines

How it starts

The opening of the file, as written. The whole thing — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Stellar MCP Tools

Claude has direct access to the Stellar blockchain, filesystem, and GitHub through MCP servers configured in .mcp.json.

Available MCP Servers

stellar-rpc

Direct blockchain queries without leaving the conversation.

Tools available:
- get_account(address)       → account balance, sequence, signers
- get_contract_data(id, key)  → contract storage entry
- simulate_transaction(xdr)   → simulate before submitting
- send_transaction(xdr)       → submit signed transaction
- get_events(contractId)      → query contract events
- get_ledger_entries(keys)    → raw ledger entries

Use for:

  • Checking account balances during development
  • Verifying contract state after deployment
  • Debugging transaction failures with simulation
  • Querying contract events without writing frontend code

filesystem

Read and write project files directly.

Tools available:
- read_file(path)     → read file contents
- write_file(path)    → write file contents
- list_directory(path) → list files in directory
- search_files(pattern) → search by glob
- get_file_info(path)  → file metadata

github

Manage repositories, PRs, issues, and code search.

Tools available:
- create_or_update_file  → commit changes
- search_repositories    → find repos
- get_issue             → read issue details
- create_pull_request   → open PRs
- list_issues           → browse open issues

playwright

Run browser-based e2e tests for Stellar dApps.

Tools available:
- browser_navigate(url)      → open page
- browser_click(selector)    → click element
- browser_type(selector, text) → fill input
- browser_screenshot()       → capture screen
- browser_evaluate(script)   → run JS in page

When to Use MCP vs Agentic Kit

Task Use
Query chain data during development stellar-rpc MCP
Check contract state after deploy stellar-rpc MCP
Read/write project files filesystem MCP
Commit and push code github MCP
Run e2e tests playwright MCP
Production frontend blockchain queries useStellarData() hook
Production contract calls from frontend useContract().write() hook

Read the full file on GitHub · 101 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 101 lines · 61 tokens per session scan A 3e39e6fb7584

Subscribe to this mod's changes

stellar-mcp is a skill published in the GitHub repository rylsherdamz-rgb/stellar-forge (17 stars, last pushed 2d ago), licensed MIT. It adds 61 tokens to every session and 735 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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