build-api-gateway

build-api-gateway is a command for Claude Code from jeremylongshore/plugins-nixtla. It costs 19 tokens per session (3,933 once invoked), scanned A, original, no licence file.

An API gateway builder for placing a single entry point in front of multiple services. It includes routing, authentication, request-rate limits, and coordination between services.

In plain words
What is it for?
It helps build gateways that direct requests, check access, limit traffic, and connect microservices.
Why use it?
It removes the need to implement these common controls separately in every service.

Command for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the api-gateway-builder plugin — 1 command shipped together

Good fit It helps build gateways that direct requests, check access, limit traffic, and connect microservices.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/jeremylongshore/plugins-nixtla/build-api-gateway
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.

Clone the repo
git clone --depth 1 https://github.com/jeremylongshore/plugins-nixtla

Made for: Claude Code.

Or install api-gateway-builder, the plugin that ships this one along with the rest of its 1 command.

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 build-api-gateway

README.md
[![agentmods](https://agentmods.dev/badge/commands/jeremylongshore/plugins-nixtla/build-api-gateway/github.svg)](https://agentmods.dev/commands/jeremylongshore/plugins-nixtla/build-api-gateway)
Your own site
<a href="https://agentmods.dev/commands/jeremylongshore/plugins-nixtla/build-api-gateway"><img src="https://agentmods.dev/badge/commands/jeremylongshore/plugins-nixtla/build-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.

agentmods 80×15 button for build-api-gateway

Your own site · 80×15
<a href="https://agentmods.dev/commands/jeremylongshore/plugins-nixtla/build-api-gateway"><img src="https://agentmods.dev/badge/commands/jeremylongshore/plugins-nixtla/build-api-gateway.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 19 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,933 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00019 $0.03933
Opus 5 $0.00010 $0.01966
Sonnet 5 $0.00004 $0.00787
Haiku 4.5 $0.00002 $0.00393

Measured 4d ago against content hash 0300e9d74434, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

build-api-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 4d 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.

const response = await fetch(url, {
010-archive/backups-20251108/plugin-enhancements/plugin-backups/api-gateway-builder_20251019_201818/commands/build-api-gateway.md · 601 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

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. 4d ago First seen · 601 lines · 19 tokens per session scan A 0300e9d74434

Subscribe to this mod's changes

build-api-gateway is a command published in the GitHub repository jeremylongshore/plugins-nixtla (11 stars, last pushed yesterday), with no licence file. It adds 19 tokens to every session and 3,933 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-05.