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.
npx skills add bex-co/bex --skill bex-mcpgit clone --depth 1 https://github.com/bex-co/bexWrote 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/skills/bex-co/bex/bex-mcp)<a href="https://agentmods.dev/skills/bex-co/bex/bex-mcp"><img src="https://agentmods.dev/badge/skills/bex-co/bex/bex-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.
<a href="https://agentmods.dev/skills/bex-co/bex/bex-mcp"><img src="https://agentmods.dev/badge/skills/bex-co/bex/bex-mcp.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00113 | $0.01349 |
| Opus 5.5 | $0.00045 | $0.00540 |
| Sonnet 5.5 | $0.00023 | $0.00270 |
| Haiku 4.5 | $0.00011 | $0.00135 |
Grade B, and why
bex-mcp scanned grade B with 2 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 yesterday.
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.
Reads MCP configurationmediumAgent snooping
mcp.json carries server URLs and auth tokens; reading it lets a mod discover and abuse other integrations.
Cursor's MCP configuration takes a credential rather than starting OAuth discovery. Add this to `~/.cursor/mcp.json`, where `BEX_TOKEN` holds an exchanged API-key token, restart Cursor, and verify with `list_services()`: Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
1. Retrieve the linked Markdown document directly with an available URL-fetching tool or HTTP client, such as `curl`. Do not substitute web-search summaries for the document. How it starts
The opening of the file, as written. The whole thing — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.
bex MCP Server
The bex MCP server lets AI coding tools manage bex resources directly. Its tools follow Render's MCP server, so the same tool names work. This skill covers setup, authentication, workspace selection, capability discovery, and troubleshooting.
Action skills (bex-deploy, bex-debug, bex-monitor) use MCP tools for their workflows. If MCP is not connected, set it up using this skill first.
Before configuring, troubleshooting, or using bex MCP, read references/bex-access.md for the current server, authentication, workspace, capability-discovery, and fallback workflow.
When to Use
list_services()fails or MCP tools are unavailable- First-time bex MCP setup for any AI tool
- User asks how to connect their AI tool to bex
- Switching workspaces or troubleshooting auth errors
- Discovering which MCP tools exist and what they do
Current Setup and Capabilities
Follow references/bex-access.md to fetch the current MCP documentation, configure the client, verify read-only access, select the intended workspace, and inspect the tools actually available. Do not rely on a memorized tool catalog.
If the user has not identified their AI tool, ask which tool they use before giving client-specific setup instructions. Prefer the browser-based OAuth sign-in when the client supports MCP's authorization discovery: no credential is stored in its configuration.
Claude Code
claude mcp add --transport http bex https://api.bex.co/mcp
Claude Code discovers bex's OAuth server from the endpoint's 401. Sign in from a session with /mcp, or ahead of time with claude mcp login bex; both open the bex dashboard login in a browser. Verify with list_services(). To replace a stale configuration, run claude mcp remove bex before adding it again.
For a headless Claude Code, pass an exchanged API-key token (see references/bex-access.md) instead:
claude mcp add --transport http bex https://api.bex.co/mcp --header "Authorization: Bearer ${BEX_TOKEN}"
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- yesterday First seen · 114 lines · 113 tokens per session scan B 84946dac2419
bex-mcp is a skill published in the GitHub repository bex-co/bex (577 stars, last pushed today), licensed Apache-2.0. It adds 113 tokens to every session and 1,349 once invoked, about $0.0005 per session on Opus 5.5. A static security scan graded it B with 2 findings (reads mcp configuration, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-29.
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