Anthropic API APIs
2 APIs13 Endpoints1 Category
Categories
API Catalog
Anthropic API
Jentic publishes the only available OpenAPI specification for Anthropic API, keeping it validated and agent-ready. Send messages to Claude models with up to 200K token context windows for complex reasoning, analysis, and code generation across 11 endpoints. Supports message batching for high-volume async workloads, token counting for cost estimation, and model listing for version discovery. Authentication uses the x-api-key header with API key validation.
11 endpointsAnthropic Messages API
Jentic publishes the only available OpenAPI specification for Anthropic Messages API, keeping it validated and agent-ready. Send prompts to Anthropic's Claude models for text generation, reasoning, and code tasks through the Messages API. Two endpoints cover the core flow: POST /messages for synchronous chat completions with system prompts, tool use, and large-context inputs, and POST /messages/count_tokens for cost-aware token estimation before a request is dispatched. Authentication uses the X-API-Key header alongside required anthropic-version and optional anthropic-beta headers for opting into preview features. Suited to agent workflows that need long-context reasoning, structured tool calls, or precise cost control.
2 endpointsConnect Your Agent
# Add to your MCP client config (Claude Desktop, Cursor, Windsurf)
{
"jentic": {
"url": "https://api.jentic.com/mcp",
"auth": "oauth"
}
}
# Then ask your agent:
"find live events near a location"
# → Jentic returns the GET /events tool with parameter schema, agent executes.