⬤ Claude API · Private Access

Claude API access,
ready to use

OpenAI-compatible endpoint for Claude Opus, Sonnet & Haiku. Drop-in replacement — works with Claude Code, Cursor, any client.

Get Access View Quickstart
terminal
# Works with any Claude client
export ANTHROPIC_BASE_URL="https://api.mayfly.wiki/v1"
export ANTHROPIC_API_KEY="your-key"

# Claude Code
claude "refactor this service"

# Direct API
curl https://api.mayfly.wiki/v1/messages \
  -H "x-api-key: your-key" \
  -d '{"model":"claude-opus-4-8","messages":[...]}'

Available Models

claude-opus-4-8
claude-sonnet-4-6
claude-haiku-4-5-20251001
claude-3-7-sonnet-20250219

Why Mayfly API

⚡
OpenAI-compatible
Drop-in for any client supporting Claude. Works with Claude Code, Cursor, Cline, and OpenAI-compatible SDKs with no code changes.
🔑
Your own API key
Each customer gets a dedicated key. Your usage is isolated — no shared quota, no interference from other users.
📊
Usage tracking
See your token consumption by model and request. Input/output breakdown so you know exactly what you're using.
🛡️
Secure & private
Traffic goes through a dedicated server, not a shared proxy. Your requests are not logged or used for training.
🔄
High availability
Multiple upstream credentials with automatic failover. Quota exhaustion on one rotates to the next — no downtime for you.
🌐
Private hosting
Dedicated infrastructure. Keys provisioned individually, revoked instantly. No shared access, no surprise rate limits.

Simple monthly access

Pay once, use for a month. Keys expire automatically — renew to continue.

Standard
Contact us
per month
  • Dedicated API key
  • All Claude models
  • No hard token cap
  • Email support
Custom
Get a quote
tailored plans
  • Volume discounts
  • Multiple keys
  • Priority support
  • Invoicing available

Email [email protected] to get started. Usually responds within 24 hours.

Quickstart

STEP 01
Get your API key
Email [email protected] to request access. You'll receive a personal key within 24 hours.
STEP 02
Set the endpoint
Point your client to https://api.mayfly.wiki/v1 instead of api.anthropic.com.
STEP 03
Start building
Use any Claude model exactly as with the official API. Same request format, same response format.
# Claude Code
ANTHROPIC_BASE_URL=https://api.mayfly.wiki/v1 ANTHROPIC_API_KEY=your-key claude
# Python SDK
client = anthropic.Anthropic(base_url="https://api.mayfly.wiki/v1", api_key="your-key")
# curl
curl https://api.mayfly.wiki/v1/messages \
  -H "x-api-key: your-key" \
  -H "content-type: application/json" \
  -d '{"model":"claude-sonnet-4-6","max_tokens":1024,"messages":[{"role":"user","content":"Hello"}]}'