Quick Start

Create an account at claudeapi.cheap/dashboard
Top up your balance with crypto (USDT, BTC, ETH)
Generate an API key from the dashboard
Replace your Anthropic base URL and API key
Start making requests — that's it!

Authentication

All API requests require a valid API key in the Authorization header. Keys start with sk-cc-.

HTTP

Authorization: Bearer sk-cc-your-api-key-here

Base URL

URL

https://claudeapi.cheap/api/proxy/v1

Compatible with the Anthropic Messages API. Set base_url in your SDK to this value.

Available Models

Model ID	Input / 1M	Output / 1M	Context
`claude-opus-4-6`	$7.50 $15	$37.50 $75	200K
`claude-sonnet-4-6`	$1.50 $3	$7.50 $15	200K
`claude-haiku-4-5`	$0.40 $0.80	$2.00 $4	200K

Messages API

POST /v1/messages — Create a message (Anthropic Messages format).

Request Body

Field	Type	Required	Description
`model`	string	Yes	Model ID
`messages`	array	Yes	Array of message objects
`max_tokens`	integer	No	Max output tokens (default: 4096)
`system`	string	No	System prompt
`temperature`	float	No	0.0 to 1.0
`stream`	boolean	No	Enable SSE streaming

Response

response.json

{

"id": "msg_abc123",

"type": "message",

"role": "assistant",

"model": "claude-sonnet-4-6",

"content": [

{

"type": "text",

"text": "Hello! How can I help you today?"

}

"stop_reason": "end_turn",

"usage": {

"input_tokens": 12,

"output_tokens": 15

}

Streaming

Set "stream": true to receive Server-Sent Events (SSE).

Python SDK

example.py

from anthropic import Anthropic

client = Anthropic(

base_url="https://claudeapi.cheap/api/proxy",

api_key="sk-cc-your-api-key"

)

message = client.messages.create(

model="claude-sonnet-4-6",

max_tokens=1024,

messages=[

{"role": "user", "content": "Explain quantum computing"}

]

)

print(message.content[0].text)

Node.js SDK

example.ts

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

const client = new Anthropic({

baseURL: "https://claudeapi.cheap/api/proxy",

apiKey: "sk-cc-your-api-key",

});

const message = await client.messages.create({

model: "claude-sonnet-4-6",

max_tokens: 1024,

messages: [

{ role: "user", content: "Explain quantum computing" }

});

console.log(message.content[0].text);

cURL

terminal

curl -X POST https://claudeapi.cheap/api/proxy/v1/messages \

-H "Authorization: Bearer sk-cc-your-api-key" \

-H "Content-Type: application/json" \

-d '{

"model": "claude-sonnet-4-6",

"max_tokens": 1024,

"messages": [

{"role": "user", "content": "Hello!"}

]

Error Handling

Status	Error Type	Description
`401`	`authentication_error`	Invalid or missing API key
`400`	`invalid_request_error`	Invalid model or malformed request
`402`	`insufficient_balance`	Balance is $0. Top up required.
`429`	`rate_limit_error`	Too many requests
`500`	`internal_error`	Server error
`502`	`upstream_error`	Upstream provider error

Rate Limits

Plan	Requests/min	Tokens/min
Free (Beta)	10	40,000
Starter	60	200,000
Pro	300	1,000,000
Enterprise	Custom	Custom

Claude Code Integration

Use claudeapi.cheap directly with Claude Code:

~/.bashrc

export ANTHROPIC_API_KEY="sk-cc-your-api-key"

export ANTHROPIC_BASE_URL="https://claudeapi.cheap/api/proxy"

Then just run claude in your terminal. All requests route through claudeapi.cheap at 50% off.

API Documentation

On this page