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Text Anthropic

Claude API

Gebruik de Claude API via RunAPI met een modelskill, uniforme auth en pay-as-you-go prijzen.

runapi.ai
# Base URL
https://runapi.ai

# Endpoints
POST /v1/chat/completions
POST /v1/responses
POST /v1/messages
POST /v1beta/models/{model}:generateContent
POST /v1beta/models/{model}:streamGenerateContent
curl https://runapi.ai/v1/messages \
  -H "Authorization: Bearer $RUNAPI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "claude-sonnet-5",
  "max_tokens": 1024,
  "messages": [
    {
      "role": "user",
      "content": "Review this pull request for security vulnerabilities, performance issues, and suggest concrete improvements."
    }
  ]
}'
import anthropic

client = anthropic.Anthropic(
    base_url="https://runapi.ai",
    api_key="your-runapi-key"
)

message = client.messages.create(
    model="claude-sonnet-5",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Review this pull request for security vulnerabilities, performance issues, and suggest concrete improvements."}]
)
import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic({
  baseURL: "https://runapi.ai",
  apiKey: "your-runapi-key"
});

const message = await client.messages.create({
  model: "claude-sonnet-5",
  max_tokens: 1024,
  messages: [{ role: "user", content: "Review this pull request for security vulnerabilities, performance issues, and suggest concrete improvements." }]
});
https://runapi.ai 5 endpoints
OVERVIEW

Over Claude

Claude is Anthropic's large language model family available in Opus, Sonnet, and Haiku tiers, designed for nuanced reasoning, long-context analysis, and code generation. It emphasizes accuracy, instruction following, and predictable outputs.

Provider
Anthropic
Modaliteit
Text

Claude API-endpoints

EndpointProtocol
POST /v1/chat/completionsOpenAI compatible
POST /v1/responsesOpenAI Responses
POST /v1/messagesAnthropic compatible
POST /v1beta/models/{model}:generateContentGemini generateContent
POST /v1beta/models/{model}:streamGenerateContentGemini streamGenerateContent

Vergelijk alle API-varianten

Variant Facturering Prijzen
claude-fable-5 1K tokens Input $10.00 / 1M tokens | Output $50.00 / 1M tokens Bekijken →
claude-fable-5-1 1K tokens Input $10.00 / 1M tokens | Output $50.00 / 1M tokens Bekijken →
claude-haiku-4-5-20251001 1K tokens Input $0.60 / 1M tokens | Output $3.00 / 1M tokens Bekijken →
claude-opus-4-1-20250805 1K tokens Input $9.00 / 1M tokens | Output $45.00 / 1M tokens Bekijken →
claude-opus-4-5-20251101 1K tokens Input $3.00 / 1M tokens | Output $15.00 / 1M tokens Bekijken →
claude-opus-4-6 1K tokens Input $3.00 / 1M tokens | Output $15.00 / 1M tokens Bekijken →
claude-opus-4-7 1K tokens Input $3.00 / 1M tokens | Output $15.00 / 1M tokens Bekijken →
claude-opus-4-8 1K tokens Input $3.00 / 1M tokens | Output $15.00 / 1M tokens Bekijken →
claude-opus-5 1K tokens Input $3.00 / 1M tokens | Output $15.00 / 1M tokens Bekijken →
claude-sonnet-4-5-20250929 1K tokens Input $1.80 / 1M tokens | Output $9.00 / 1M tokens Bekijken →
claude-sonnet-4-6 1K tokens Input $1.80 / 1M tokens | Output $9.00 / 1M tokens Bekijken →
claude-sonnet-5 1K tokens Input $1.36 / 1M tokens | Output $6.78 / 1M tokens Bekijken →
PRICING

Claude-prijzen

Endpoint Resolutie Duur Prijs
message Input $10.00 / 1M tokens | Output $50.00 / 1M tokens

Prijzen getoond voor claude-fable-5. Andere varianten behouden hun eigen endpoint-prijzen.

Agentintegratie

Gebruik Claude vanuit een agent

HOE HET WERKT

Aan de slag met Claude

  1. Kies het model

    Kies het model en de variant die passen bij je outputtype, kwaliteitslat en latencydoel.

  2. Configureren

    Stel je RunAPI-key in en installeer de modelskill in je codeworkspace.

  3. Bouwen

    Gebruik de skill-instructies om de modelfeature in je applicatie toe te voegen.

  4. Ontvangen

    Poll op task-ID, stream wanneer ondersteund of verwerk de webhook-callback.

CONTEXT

Wat is de Claude API?

Claude is Anthropic's LLM family, spanning Opus (frontier), Sonnet (balanced), and Haiku (fast). Through RunAPI, all Claude variants share the same API shape and per-token billing.

Provider
Anthropic
Alles bekijken →
Modaliteit
Text
Modellen bekijken →

Waarom de Claude API via RunAPI gebruiken

Eén auth, elke provider

Met één RunAPI-sleutel ontgrendel je de hele catalogus. Geen aparte accounts, geen sleutelrotatie per integratie.

Uniforme prijzen & billing

Prijs per call in USD, maandelijks gefactureerd. Mislukte generaties worden niet in rekening gebracht.

Skill met schema's

Getypeerde schema's en setupnotities zitten in de modelskill, zodat implementatie start vanuit het juiste contract.

Vragen over Claude

What is the context window size?

Most Claude models support 200K tokens of context, with 1M-token context available on the latest Opus and Sonnet models. Pricing is the same per-token regardless of context size.

What is extended thinking?

Extended thinking lets Claude reason step-by-step before answering. Thinking tokens are billed as output tokens and count toward the context limit.

How do Opus, Sonnet, and Haiku compare?

Opus is the most capable for complex reasoning. Sonnet balances quality and speed. Haiku is the fastest and cheapest for high-throughput tasks.

Does Claude support tool use?

Yes — Claude can call tools, execute code, search the web, and fetch URLs. Tool use is generally available with no beta header required.

Is prompt caching available?

Yes — cache reads are charged at roughly 10% of the standard input rate, significantly reducing cost for repeated contexts.

Met welke variant moet ik beginnen?

Kies de goedkoopste variant die aan je kwaliteitsnorm voldoet. De meeste teams beginnen met de snelle variant en stappen over op pro voor productie.

VERGELIJKBARE MODELLEN

Als je de Claude API goed vindt, probeer deze dan eens

Begin met bouwen met de Claude API.