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 GGbond-bo/MemOmics-Agent --skill mcp-oauth-remote-gatewaygit clone --depth 1 https://github.com/GGbond-bo/MemOmics-AgentWrote 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/ggbond-bo/memomics-agent/mcp-oauth-remote-gateway)<a href="https://agentmods.dev/skills/ggbond-bo/memomics-agent/mcp-oauth-remote-gateway"><img src="https://agentmods.dev/badge/skills/ggbond-bo/memomics-agent/mcp-oauth-remote-gateway/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/ggbond-bo/memomics-agent/mcp-oauth-remote-gateway"><img src="https://agentmods.dev/badge/skills/ggbond-bo/memomics-agent/mcp-oauth-remote-gateway.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 | $0.00020 | $0.05943 |
| Opus 5 | $0.00010 | $0.02972 |
| Sonnet 5 | $0.00004 | $0.01189 |
| Haiku 4.5 | $0.00002 | $0.00594 |
Grade A, and why
mcp-oauth-remote-gateway scanned grade A with 1 finding 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 11d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
login-gated; a cookieless curl returning 401/302 confirms they exist). This is a copy
97% identical to mcp-oauth-remote-gateway — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 372 lines — stays where its author put it; the contents beside it link to each section on GitHub.
MCP OAuth on a Remote Hermes Gateway
Overview
Hermes' built-in MCP OAuth client runs a one-shot HTTP listener on 127.0.0.1:<port>
inside the Hermes process and registers that loopback address as the OAuth
redirect_uri. That works perfectly for a local CLI on the user's own machine.
It breaks completely when Hermes runs as a remote gateway (container, VPS,
messaging bot), because the user's browser resolves 127.0.0.1 to the user's own
laptop, not the remote container — so the authorization code never reaches Hermes.
This skill does the OAuth dance by hand and writes the resulting tokens into the
exact files Hermes' token storage expects, so a subsequent /reload-mcp finds
cached tokens and skips the browser flow entirely.
When to Use
Use this skill when all of the following are true:
- The user wants to add a remote HTTP MCP server that requires OAuth (not a static Bearer token).
- Hermes is running as a remote gateway (container, VPS, Docker, managed service) — NOT a local CLI on the user's laptop.
- The server supports OAuth 2.1 with PKCE and RFC 7591 Dynamic Client Registration (most modern MCP servers do — Better Stack, Linear, Cloudflare, Datadog, etc.). If it doesn't support DCR (GitHub is the notable exception), this skill does not apply — use a pre-registered OAuth App or a Personal Access Token instead.
Do NOT use this for:
- Local CLI Hermes — just set
auth: oauthinmcp_servers.<name>and/reload-mcp. The built-in flow opens a browser and captures the callback on localhost. Works perfectly. - Servers that accept a static Bearer token (API key) — always prefer
headers.Authorization: "Bearer <token>"when the user is willing. Simpler, no refresh dance. - GitHub Copilot MCP (
api.githubcopilot.com/mcp/) — GitHub does not expose DCR. Use a PAT or a pre-registered OAuth App (see pitfall 12).
Why the Built-in OAuth Flow Fails on a Remote Gateway
Hermes' native MCP OAuth client (tools/mcp_oauth.py):
- Picks a free local port
P. - Registers a dynamic OAuth client with the AS, sending
redirect_uri = http://127.0.0.1:P/callback. - Starts an HTTP server on
127.0.0.1:Pinside the Hermes process. - Prints the authorize URL and waits for the code at its local endpoint.
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.
- 11d ago First seen · 372 lines · 20 tokens per session scan A 063f7b9e4877
mcp-oauth-remote-gateway is a skill published in the GitHub repository GGbond-bo/MemOmics-Agent (19 stars, last pushed yesterday), licensed MIT. It adds 20 tokens to every session and 5,943 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). It is 97% identical to mcp-oauth-remote-gateway, differing in 2 lines, and is treated as a copy.
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