A connection layer for using more than 100 external services, including Google Workspace, Microsoft 365, GitHub, Notion, Slack, Airtable, and HubSpot, through managed login authorization.

Use it when an agent needs to interact with supported external services, such as reading or updating work in a connected account.

It removes the need to build and maintain a separate connection and login flow for each supported service.

api-gateway — Skill for Claude Code and Codex by bighardperson

Install

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.

Any agent

npx skills add bighardperson/computer-science-skills-collection --skill api-gateway

Clone the repo

git clone --depth 1 https://github.com/bighardperson/computer-science-skills-collection

Made for: Claude Code, Codex.

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/skills/bighardperson/computer-science-skills-collection/api-gateway/github.svg)](https://agentmods.dev/skills/bighardperson/computer-science-skills-collection/api-gateway)

Your own site

<a href="https://agentmods.dev/skills/bighardperson/computer-science-skills-collection/api-gateway"><img src="https://agentmods.dev/badge/skills/bighardperson/computer-science-skills-collection/api-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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/bighardperson/computer-science-skills-collection/api-gateway"><img src="https://agentmods.dev/badge/skills/bighardperson/computer-science-skills-collection/api-gateway.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 111 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 9,570 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 2 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin unknown 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	$0.00111	$0.09570
Opus 5.5	$0.00044	$0.03828
Sonnet 5.5	$0.00022	$0.01914
Haiku 4.5	$0.00011	$0.00957

Measured 1mo ago against content hash 2e43b5401c36, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

api-gateway scanned grade A 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 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.

Sends data to an external URLlowData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

response = requests.post( 'https://gateway.maton.ai/slack/api/chat.postMessage',

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

import urllib.request, os, json

skills/API Gateway/SKILL.md · 687 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

60 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.

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.

1mo ago First seen · 687 lines · 111 tokens per session scan A 2e43b5401c36

Subscribe to this mod's changes

api-gateway is a skill published in the GitHub repository bighardperson/computer-science-skills-collection (63 stars, last pushed 6mo ago), with no licence file. It adds 111 tokens to every session and 9,570 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it A with 2 findings (sends data to an external url, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Backend and APIs Claude Code ai-agent automation awesome-list computer-science developer-tools

api-gateway

Getting it into your agent

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Sends data to an external URLlowData exfiltration

Makes network callslowCapability

The source is not reproduced here

A licence we could not identify

What ships with it

What this file has done since we first saw it

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