Chat APIvia SkillBoss · one API key
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Claude 4.5 Haiku API

Fastest Claude model with near-instant responses, ~90% intelligence of Sonnet. Ideal for code review, documentation, high-volume tasks, and cost-sensitive batch applications.

Pricing

$4000000.00/$20000000.00 per 1M tokens

Listing State

active

Last Updated

2026-04-10

Pricing Source

skillboss_models

Code Examples

Model ID: claude-4-5-haiku

curl -X POST https://api.skillboss.co/v1/run \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-4-5-haiku",
    "inputs": {
      // Your parameters here
    }
  }'

Quick Start

Start using Claude 4.5 Haiku in under 60 seconds

FOR AI AGENTS

Base URL: https://api.skillboss.co/v1

Model: claude-4-5-haiku

Auth: Bearer token — get at skillboss.co/console

Pricing: $4000000.00/$20000000.00 per 1M tokens, no subscription

Or auto-configure everything:

set up skillboss.co/skill.md

FOR DEVELOPERS

1

Get your API key at skillboss.co/console

2

POST to api.skillboss.co/v1 with model claude-4-5-haiku

3

Parse the JSON response. Auth, billing, and rate limits handled automatically.

Best-Fit Use Cases

3 workflows
01

Power assistants, copilots, and agent loops

02

Generate text, summaries, and reasoning outputs

03

Route prompts through one unified API key

Frequently Asked Questions

Docs · Browse all APIs

What is the Claude 4.5 Haiku API used for?

Claude 4.5 Haiku is a chat api available through SkillBoss. Teams use it to add Claude 4.5 Haiku to apps, automations, and AI agent workflows without managing separate vendor credentials.

How do I call Claude 4.5 Haiku on SkillBoss?

Send a POST request to https://api.skillboss.co/v1/run with "model": "claude-4-5-haiku" and an "inputs" object. SkillBoss handles auth, billing, and the unified API layer.

Why use SkillBoss instead of the native anthropic setup?

SkillBoss gives you one API key, pay-as-you-go billing, and a consistent integration flow across many APIs. That reduces setup time and makes the endpoint easier to use in Claude Code, Cursor, Windsurf, and other agents.

Can agents use Claude 4.5 Haiku?

Yes. This page is designed as a discovery surface for both humans and agents: clear capability framing, direct code examples, and a stable canonical URL make it easier to find, evaluate, and invoke.

How do x402 and MPP work for Claude 4.5 Haiku?

SkillBoss exposes machine-friendly payment and execution patterns for supported public APIs. This page shows x402 and MPP guidance so agent tools can understand the billing and invocation surface before they call the endpoint.

Start using Claude 4.5 Haiku now

One API key, 100+ models, zero markup

AI Agents

Tell your agent:

set up skillboss.co/skill.md

Auto-configures base URL, auth, and Claude 4.5 Haiku access. Works with Claude Code, Cursor, Windsurf, and any MCP-compatible agent.

Developers

1. Get API key at skillboss.co/console

2. POST to api.skillboss.co/v1/run

3. Model: claude-4-5-haiku

Pay-as-you-go. $4000000.00/$20000000.00 per 1M tokens. No subscription required.

Claude 4.5 Haiku API - Chat API Pricing & Access | SkillBoss