API Gateway — one key for every model and tool your agents call — AgentSky

API Gateway

One key for every model and tool your agents call.

An OpenRouter-style gateway built for agents: models and tools behind one key, with the price in every response.

One key for every model and tool

Text and media models plus agent tools behind a single AgentSky key, paid from one balance. No vendor accounts to open, no keys to rotate.

Change the base URL, keep the SDK

Every wire is served as it is, paths included. Point the client you already use at the gateway and nothing else changes.

Automatic failover

When a model can be served more than one way, the gateway moves on from whatever is unreachable or rate-limited before a byte of the reply is sent.

The price in every response

Model calls carry usage.cost; media model and tool calls carry price.amount. You never reconcile a bill against a log to find out what a call cost.

Featured models

Current per-token prices, using your plan when signed in.

Claude Fable 5.1

by Anthropic
In / out per 1M
Price: $10.00 / Price: $50.00
Context 1M

GPT-6 Luna

by OpenAI
In / out per 1M
From Price: $0.1 / from Price: $0.5
Context 1.1M

Gemini 3.8 Flash

by Google
In / out per 1M
Price: $0.75 / Price: $3.75
Context 1M

Featured tools

Search, maps, email, and SEO data, all through one run call.

A

List inboxes
by AgentMail
List the email inboxes on the account, newest first.
Per call Price: —
Provider AgentMail

D

Ai Keywords Search Volume
by DataForSEO
Run a ai keywords search volume report.
Per call Price: —
Provider DataForSEO

E

Text embeddings
by Embedding
Create vectors from text.
Per token Price: —
Provider Embedding

Three steps to your first call.

Get an API key
Sign in and create an ast_key under Settings. It works on every wire, model, and tool here.
Add credits
One balance pays for models and tools alike, with per-call records you can read back.
Point your SDK at the gateway
Change the base URL, keep the client, and read the price out of the response.

Code Snippets

Example code for Anthropic SDK

import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic({
  baseURL: "https://gateway.agentsky.dev",
  apiKey: process.env.AGENTSKY_API_KEY, // ast_…
});

const message = await client.messages.create({
  model: "anthropic/claude-sonnet-5",
  max_tokens: 256,
  messages: [{ role: "user", content: "Summarise this ticket." }],
});
console.log(message.usage.cost); // USD, in the response

Example code for Claude Code

export ANTHROPIC_BASE_URL=https://gateway.agentsky.dev
export ANTHROPIC_AUTH_TOKEN=ast_…
claude

Example code for Codex CLI

export OPENAI_BASE_URL=https://gateway.agentsky.dev/v1
export OPENAI_API_KEY=ast_…
codex