How much does Claude API cost?

Claude API pricing is per-token. Anthropic's current public rates are $1/$5 per 1M tokens for Haiku 4.5, $3/$15 for Sonnet 4.6, and $5/$25 for the Opus tier. ClaudeStore sells discounted Anthropic-equivalent usage packs: $45 buys $500 of usage and $90 buys $1,000. Opus 4.8 is available as a separate pay-as-you-go rail.

Claude API is not free — it uses pay-per-token pricing. ClaudeStore sells discounted credit packs starting at $45 ($500 of Anthropic-equivalent usage) with no subscription. Sign up to manage credits and API keys from a single dashboard.

Which models are available?

ClaudeStore gives one-key access to the current Opus, Sonnet, and Haiku families, including Claude Opus 4.7, Claude Sonnet 4.6, and Claude Haiku 4.5. Opus 4.8 is offered as a separate dedicated rail.

Which Claude model is best for coding?

Claude Sonnet 4.6 is the default choice for daily coding and agent workflows. Use Opus 4.7 for complex refactors, architecture, and high-stakes reasoning; use Haiku 4.5 for fast low-cost tasks. Use the separate Opus 4.8 rail for long, consistent sessions where cache reuse matters.

What base URL should I use?

Use https://api3.claudestore.store as your base URL. For the Anthropic-compatible API, the messages endpoint is POST /v1/messages. For OpenAI-compatible, it's POST /v1/chat/completions.

What's the difference between Anthropic and OpenAI-compatible modes?

Anthropic mode uses x-api-key header and anthropic-version header with the Messages API format. OpenAI mode uses Authorization: Bearer header with the Chat Completions format. Both access the same Claude models.

How do I get a Claude API key?

Sign up at ClaudeStore, purchase credits (starting from $5), and generate an API key from your dashboard. The entire process takes under 2 minutes, no approval, instant access to all Claude models.

What are the rate limits?

ClaudeStore uses protective per-key and global gateway limits rather than a fixed public RPM table. If you hit 429, respect Retry-After, reduce concurrency, and contact support for sustained higher throughput.

Buy Claude API Access — All Models, One Platform

Buy Claude API keys and get unified access to all Claude models through Anthropic-compatible and OpenAI-compatible APIs. Integrate with Cursor, Claude Code, VS Code, and any SDK in minutes, then monetize your audience with claimable rewards in API usage or Solana USDT.

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OpenAI + Anthropic compatible

Anthropic-equivalent packs

$500$45

$1,000$90

One gateway for Claude Code, Cursor and production API calls.

base_url: api3.claudestore.store

key: sk-cs2-*

Start with credits

Claude Models

API Formats

99.9%

Uptime

<100ms

Overhead

Setup in minutes

Connect Claude in three steps.

Create a key, choose your tool, and point it at ClaudeStore. The full one-prompt setup lives in the dashboard after signup.

Claude CodeCursorClineContinueBlackboxOpenAI SDK

Create a key

Choose your client

Claude Code, Cursor, Cline, Continue, Blackbox, or any SDK.

Set the endpoint

Use Anthropic-native or OpenAI-compatible base URL.

$ export ANTHROPIC_BASE_URL=https://api3.claudestore.store

$ export ANTHROPIC_API_KEY=sk-cs2-...

Get an API key Full setup guide

Built for Developers

Everything you need to integrate Claude models into your workflow. Fast, reliable, developer-first.

Single API Key

One key for all Claude models. Manage access, limits, and usage from your dashboard.

Anthropic API

Fully compatible with the Anthropic Messages API. Drop-in replacement with zero code changes.

OpenAI API

OpenAI-compatible endpoint lets you use any OpenAI SDK or tool with Claude models.

Streaming

Real-time streaming support for both Anthropic SSE and OpenAI-compatible formats.

Per-Key Controls

Set credit limits, track usage per key, and monitor spending with full transparency.

Anthropic-Equivalent Billing

Pay $45 for $500 of Anthropic-equivalent usage, or $90 for $1,000. Same per-token rates as Anthropic — just billed at a discount. No subscriptions, balance never expires.

Opus 4.8 is available

Dedicated Opus 4.8 balance for heavier coding sessions

Buy Opus 4.8 access from Billing and use it separately from the main Claude API credits. It is built for long, consistent work where premium reasoning and cache reuse matter.

Buy Opus 4.8

Transparent Pricing

Credit-based billing. Packs from $45 / 500 credits ($500 Anthropic-equivalent). Pay only for what you use.

Cost Formula

cost = (input × input_rate) + (output × output_rate)
+ (cache_write × cw_rate) + (cache_read × cr_rate)
+ (thinking × thinking_rate)

Streaming is billed the same as non-streaming requests. All token categories are metered and visible in your usage dashboard.

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Input Tokens

Standard uncached input tokens

←

Output Tokens

Generated response tokens

↗

Cache Write

Tokens written to prompt cache

↙

Cache Read

Tokens read from prompt cache

◎

Thinking Tokens

Extended thinking tokens (Opus/Sonnet)

View detailed pricing

Common questions

Short answers to the questions that usually matter before buying an API key.

Open setup docs

Ready to start building?

Get your API key and send your first request in under a minute.

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