LangWatch

LangWatch Annotations API

Collaborative annotation and labeling workflows over traces — used by domain experts and PMs to produce graded examples for evaluations and fine-tuning datasets.

LangWatch Annotations API is one of 20 APIs that LangWatch publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 1 machine-runnable capability that can be deployed as REST, MCP, or Agent Skill surfaces via Naftiko.

Tagged areas include Annotations, Labeling, and Human Feedback. The published artifact set on APIs.io includes API documentation, an OpenAPI specification, and 1 Naftiko capability spec.

GitHub OpenAPI

Documentation

📖
Documentation
https://langwatch.ai/docs/api-reference/annotations

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/langwatch/refs/heads/main/openapi/langwatch-openapi.json

Other Resources

🔗
NaftikoCapability
https://raw.githubusercontent.com/api-evangelist/langwatch/refs/heads/main/capabilities/annotations.yaml

OpenAPI Specification

langwatch-openapi.json Raw ↑ 
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