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    Using the API

    Features overviewClient SDKsBeta headersErrors
    Messages
    Create a Message
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    Models
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    Beta
    Models
    List Models
    Get a Model
    Messages
    Create a Message
    Count tokens in a Message
    Batches
    Create a Message Batch
    Retrieve a Message Batch
    List Message Batches
    Cancel a Message Batch
    Delete a Message Batch
    Retrieve Message Batch results
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    Completions
    Create a Text Completion

    Support & configuration

    Rate limitsService tiersVersionsIP addressesSupported regionsOpenAI SDK compatibility
    Console
    Create Skill
    SkillCreateResponse beta().skills().create(SkillCreateParamsparams = SkillCreateParams.none(), RequestOptionsrequestOptions = RequestOptions.none())
    post/v1/skills?beta=true

    Create Skill

    ParametersExpand Collapse
    SkillCreateParams params
    Optional<List<AnthropicBeta>> betas

    Optional header to specify the beta version(s) you want to use.

    MESSAGE_BATCHES_2024_09_24("message-batches-2024-09-24")
    PROMPT_CACHING_2024_07_31("prompt-caching-2024-07-31")
    COMPUTER_USE_2024_10_22("computer-use-2024-10-22")
    COMPUTER_USE_2025_01_24("computer-use-2025-01-24")
    PDFS_2024_09_25("pdfs-2024-09-25")
    TOKEN_COUNTING_2024_11_01("token-counting-2024-11-01")
    TOKEN_EFFICIENT_TOOLS_2025_02_19("token-efficient-tools-2025-02-19")
    OUTPUT_128K_2025_02_19("output-128k-2025-02-19")
    FILES_API_2025_04_14("files-api-2025-04-14")
    MCP_CLIENT_2025_04_04("mcp-client-2025-04-04")
    DEV_FULL_THINKING_2025_05_14("dev-full-thinking-2025-05-14")
    INTERLEAVED_THINKING_2025_05_14("interleaved-thinking-2025-05-14")
    CODE_EXECUTION_2025_05_22("code-execution-2025-05-22")
    EXTENDED_CACHE_TTL_2025_04_11("extended-cache-ttl-2025-04-11")
    CONTEXT_1M_2025_08_07("context-1m-2025-08-07")
    CONTEXT_MANAGEMENT_2025_06_27("context-management-2025-06-27")
    MODEL_CONTEXT_WINDOW_EXCEEDED_2025_08_26("model-context-window-exceeded-2025-08-26")
    SKILLS_2025_10_02("skills-2025-10-02")
    Optional<String> displayTitle

    Display title for the skill.

    This is a human-readable label that is not included in the prompt sent to the model.

    Optional<List<String>> files

    Files to upload for the skill.

    All files must be in the same top-level directory and must include a SKILL.md file at the root of that directory.

    ReturnsExpand Collapse
    class SkillCreateResponse:
    String id

    Unique identifier for the skill.

    The format and length of IDs may change over time.

    String createdAt

    ISO 8601 timestamp of when the skill was created.

    Optional<String> displayTitle

    Display title for the skill.

    This is a human-readable label that is not included in the prompt sent to the model.

    Optional<String> latestVersion

    The latest version identifier for the skill.

    This represents the most recent version of the skill that has been created.

    String source

    Source of the skill.

    This may be one of the following values:

    • "custom": the skill was created by a user
    • "anthropic": the skill was created by Anthropic
    String type

    Object type.

    For Skills, this is always "skill".

    String updatedAt

    ISO 8601 timestamp of when the skill was last updated.

    Create Skill
    Java
    package com.anthropic.example;
    
    import com.anthropic.client.AnthropicClient;
    import com.anthropic.client.okhttp.AnthropicOkHttpClient;
    import com.anthropic.models.beta.skills.SkillCreateParams;
    import com.anthropic.models.beta.skills.SkillCreateResponse;
    
    public final class Main {
        private Main() {}
    
        public static void main(String[] args) {
            AnthropicClient client = AnthropicOkHttpClient.fromEnv();
    
            SkillCreateResponse skill = client.beta().skills().create();
        }
    }
    {
      "id": "skill_01JAbcdefghijklmnopqrstuvw",
      "created_at": "2024-10-30T23:58:27.427722Z",
      "display_title": "My Custom Skill",
      "latest_version": "1759178010641129",
      "source": "custom",
      "type": "type",
      "updated_at": "2024-10-30T23:58:27.427722Z"
    }
    Returns Examples
    {
      "id": "skill_01JAbcdefghijklmnopqrstuvw",
      "created_at": "2024-10-30T23:58:27.427722Z",
      "display_title": "My Custom Skill",
      "latest_version": "1759178010641129",
      "source": "custom",
      "type": "type",
      "updated_at": "2024-10-30T23:58:27.427722Z"
    }
    © 2025 ANTHROPIC PBC

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    • Claude
    • Claude Code
    • Max plan
    • Team plan
    • Enterprise plan
    • Download app
    • Pricing
    • Log in

    Features

    • Claude and Slack
    • Claude in Excel

    Models

    • Opus
    • Sonnet
    • Haiku

    Solutions

    • AI agents
    • Code modernization
    • Coding
    • Customer support
    • Education
    • Financial services
    • Government
    • Life sciences

    Claude Developer Platform

    • Overview
    • Developer docs
    • Pricing
    • Amazon Bedrock
    • Google Cloud’s Vertex AI
    • Console login

    Learn

    • Blog
    • Catalog
    • Courses
    • Use cases
    • Connectors
    • Customer stories
    • Engineering at Anthropic
    • Events
    • Powered by Claude
    • Service partners
    • Startups program

    Company

    • Anthropic
    • Careers
    • Economic Futures
    • Research
    • News
    • Responsible Scaling Policy
    • Security and compliance
    • Transparency

    Help and security

    • Availability
    • Status
    • Support center

    Terms and policies

    • Privacy policy
    • Responsible disclosure policy
    • Terms of service: Commercial
    • Terms of service: Consumer
    • Usage policy
    © 2025 ANTHROPIC PBC