Borrowing it
Nothing to install: this file belongs to SAK1337/dune-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.
curl -O https://raw.githubusercontent.com/SAK1337/dune-mcp/main/CLAUDE.mdgit clone --depth 1 https://github.com/SAK1337/dune-mcpWrote 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.
[](https://agentmods.dev/instructions/sak1337/dune-mcp/claude-md)<a href="https://agentmods.dev/instructions/sak1337/dune-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/sak1337/dune-mcp/claude-md.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00830 | $0.00830 |
| Opus 5 | $0.00415 | $0.00415 |
| Sonnet 5 | $0.00166 | $0.00166 |
| Haiku 4.5 | $0.00083 | $0.00083 |
Grade A, and why
dune-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 7d 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.
How it starts
The opening of the file, as written. The whole thing — 97 lines — stays where its author put it; the contents beside it link to each section on GitHub.
mcp-server-dune
A Python-based Model Context Protocol (MCP) server for integrating AI agents with Dune Analytics blockchain data.
Project Overview
This MCP server acts as middleware between AI agents (Claude Desktop, Cursor, autonomous Python agents) and the Dune Analytics API. It exposes Dune's capabilities as discrete, discoverable Tools, Resources, and Prompts following the MCP standard.
Technology Stack
- Framework: FastMCP v2.0+ (decorator-based MCP server)
- API Client: dune-client v1.10.0+ (official Dune Analytics SDK)
- Python: 3.11+
- Validation: Pydantic for type safety and schema generation
Configuration
- Environment Variable:
DUNE_API_KEY(required, never hardcode) - Config File:
fastmcp.jsonfor server configuration - Transport: Stdio (local) or SSE (remote deployment)
MCP Tools
Execution Tools
run_query- Execute saved query and wait for results (blocking)run_sql- Execute raw ad-hoc DuneSQL (Trino dialect)submit_query- Submit query and return execution_id immediately (non-blocking)get_execution_status- Check job stateget_execution_results- Retrieve completed job data
Query Management Tools
create_query- Save new query to libraryupdate_query- Modify existing queryarchive_query- Move query to archive
MCP Resources (dune:// scheme)
dune://query/{query_id}/latest- Cached result (zero credits)dune://query/{query_id}/sql- Query SQL definitiondune://execution/{execution_id}/status- Execution status
MCP Prompts
generate_dune_sql- Guide LLM for valid DuneSQL syntaxanalyze_result- Guide result interpretation
Development Guidelines
DuneSQL Conventions
- Uses Trino/Presto SQL dialect
- Ethereum addresses as bytearrays: use
0x...literals - Date handling:
NOW() - INTERVAL '7' DAY - Prefer decoded project tables over raw tables
- Always include
LIMITto prevent timeouts
Async Patterns
- Use
asyncio.to_thread()for synchronous SDK calls - Support both blocking and non-blocking execution modes
- Default row limit: 50 (prevents context overflow)
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.
- 7d ago First seen · 97 lines · 830 tokens per session scan A d4bfa4017a2a
dune-mcp CLAUDE.md is an instructions file published in the GitHub repository SAK1337/dune-mcp (0 stars, last pushed 4mo ago), licensed MIT. It adds 830 tokens to every session, about $0.0042 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 2026-08-31.
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