What is bsv-mcp CLAUDE.md?

Repository instructions for bsv-mcp, a server that lets AI assistants work with Bitcoin SV blockchain features. They cover setup, local development, testing, linting, and three deployment modes.

Use them when developing wallet, token, ordinal, identity, or social features, or when running the server locally, over HTTP, or as a Cloudflare Worker.

They give an agent the project-specific commands and constraints needed to build, run, check, and deploy the server correctly.

How b-open-io/bsv-mcp configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to b-open-io/bsv-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/b-open-io/bsv-mcp/master/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/b-open-io/bsv-mcp

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/b-open-io/bsv-mcp/claude-md.svg)](https://agentmods.dev/instructions/b-open-io/bsv-mcp/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/b-open-io/bsv-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/b-open-io/bsv-mcp/claude-md.svg" alt="Measured on agentmods" height="20"></a>

Per session 3,494 This file is loaded in full into every session.

When invoked 3,494 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.03494	$0.03494
Opus 5	$0.01747	$0.01747
Sonnet 5	$0.00699	$0.00699
Haiku 4.5	$0.00349	$0.00349

Measured today against content hash 6501147e890e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

bsv-mcp CLAUDE.md 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 today.

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.

CLAUDE.md · 356 lines

How it starts

The opening of the file, as written. The whole thing — 356 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

BSV MCP is a Model Context Protocol server that exposes Bitcoin SV (BSV) blockchain functionality to AI assistants. It provides tools for wallet operations, ordinals (NFTs), tokens, identity management, and social features through a modular architecture.

Current Version: 0.2.10

The project supports three deployment modes:

Local MCP Server - Runs via stdio transport with OAuth 2.1 authentication
HTTP Server (Streamable HTTP) - Runs as HTTP server using MCP 2025-03-26 Streamable HTTP spec with JWT validation
CloudFlare Worker - Hosted implementation with OAuth 2.1 and Bitcoin-auth

Essential Commands

Local Development

# Install dependencies
bun install

# Build the project
bun build ./index.ts --outdir ./dist --target node

# Run locally (stdio mode for Claude Code)
bun run index.ts

# Run with environment variables
TRANSPORT=stdio USE_DROPLIT_API=true bun run index.ts

# Run tests
bun test

# Lint code
bun run lint

# Fix linting issues
bun run lint:fix

CloudFlare Worker Deployment

# Navigate to cloudflare directory
cd cloudflare

# Install dependencies
bun install

# Deploy the worker
wrangler deploy

# Check worker logs
wrangler tail

# Test locally
wrangler dev

Testing with Claude Code CLI

# Install as plugin (simplest)
claude plugin install bsv-mcp@b-open-io

# Or add manually via MCP CLI
claude mcp add bsv-mcp "bun run index.ts"

# List configured servers
claude mcp list

# Remove and re-add (useful after changes)
claude mcp remove bsv-mcp
claude mcp add bsv-mcp "bun run index.ts"

CloudFlare Frontend (Next.js)

cd cloudflare/frontend

# Development
bun dev

# Build
bun run build

# Lint
bun run lint

Core Architecture

Entry Point

index.ts: Main server initialization with stdio or Streamable HTTP transport
- Key initialization with SecureKeyManager
- Transport mode detection (stdio/http)
- Conditional tool/prompt/resource registration based on env vars
- createConfiguredServer() factory produces a fully-wired McpServer instance
- HTTP mode: one McpServer + WebStandardStreamableHTTPServerTransport per session (session-per-request model); sessions tracked by mcp-session-id header
- Single /mcp endpoint handles all MCP traffic (GET, POST, DELETE); OAuth discovery at /.well-known/oauth-protected-resource and /.well-known/oauth-authorization-server

Read the full file on GitHub · 356 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.

today Changed · +16 tokens per session 6501147e890e
8d ago First seen · 356 lines · 3,478 tokens per session scan A 690ba12bd15e

Subscribe to this mod's changes

bsv-mcp CLAUDE.md is an instructions file published in the GitHub repository b-open-io/bsv-mcp (22 stars, last pushed today), licensed MIT. It adds 3,494 tokens to every session, about $0.0175 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.

Backend and APIs Web3 and blockchain

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,182 tokens

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

bsv-mcp: Instructions file for Claude Code