blockrun-mcp: Instructions file for Codex

AGENTS.md

blockrun-mcp AGENTS.md is an instructions file for Codex, OpenCode from BlockRunAI/blockrun-mcp. It costs 281 tokens per session, scanned A, original, MIT.

Project instructions for BlockRun MCP, a server that gives Codex access to live market, research, X/Twitter, and cryptocurrency data through paid requests. It also documents the project commands, structure, dependencies, and installation command.

In plain words
What is it for?
Use it when installing BlockRun MCP in Codex, developing its TypeScript code, running builds or type checks, or working with its MCP tools and payment setup.
Why use it?
It gives an AI coding agent the project context needed to build, check, and run this TypeScript MCP server correctly.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions Codex.

This is BlockRunAI/blockrun-mcp's own configuration. It tells Codex and OpenCode how to work on blockrun-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything blockrun-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to BlockRunAI/blockrun-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/BlockRunAI/blockrun-mcp/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/BlockRunAI/blockrun-mcp

Made for: Codex, OpenCode.

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 blockrun-mcp AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/blockrunai/blockrun-mcp/agents-md/github.svg)](https://agentmods.dev/instructions/blockrunai/blockrun-mcp/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/blockrunai/blockrun-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/blockrunai/blockrun-mcp/agents-md/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 blockrun-mcp AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/blockrunai/blockrun-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/blockrunai/blockrun-mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 281 This file is loaded in full into every session.
When invoked 281 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00281 $0.00281
Opus 5.5 $0.00112 $0.00112
Sonnet 5.5 $0.00056 $0.00056
Haiku 4.5 $0.00028 $0.00028

Measured 1mo ago against content hash 261de01968c2, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

blockrun-mcp AGENTS.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 1mo 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

AGENTS.md · 47 lines

What it actually says

BlockRun MCP

MCP server giving Codex real-time data — markets, research, web search, crypto. Pay per call with USDC.

Commands

npm install              # install dependencies
npm run build            # compile with tsup
npm run dev              # watch mode (tsx)
npm start                # start MCP server
npm run typecheck        # type checking

Project structure

src/
├── index.ts             # MCP server entry point
├── mcp-handler.ts       # MCP protocol handler
├── tools/               # MCP tool implementations
├── types.ts             # Type definitions
└── utils/               # Shared utilities

Key dependencies

  • @blockrun/llm — LLM gateway SDK (x402 payments)
  • @modelcontextprotocol/sdk — MCP protocol SDK
  • zod — Schema validation
  • viem — Ethereum interaction
  • qrcode — Wallet QR code display

Install in Codex

codex mcp add blockrun -- npx -y @blockrun/mcp@latest

Conventions

  • TypeScript, ESM
  • Build with tsup
  • Node >= 20.19
  • MIT license
  • npm registry: @blockrun/mcp
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. 1mo ago Changed · -1 tokens per session 261de01968c2
  2. 1mo ago First seen · 47 lines · 282 tokens per session scan A 9c660c654afe

Subscribe to this mod's changes

blockrun-mcp AGENTS.md is an instructions file published in the GitHub repository BlockRunAI/blockrun-mcp (392 stars, last pushed yesterday), licensed MIT. It adds 281 tokens to every session, about $0.0011 per session on Opus 5.5. 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.

Related

Other instructions, from other repositories