Clara
The API-readiness agent behind Postman's Claude Code plugin.
Clara is the foundation for the Postman Claude Code plugin and the agent that checks whether APIs are ready for AI agents. It looks beyond whether an endpoint works and evaluates whether an agent can safely discover, call, debug, and improve the API in real workflows.
API readiness model
The signals Clara uses to judge agent usability.
Machine-readable API contracts
Agent-safe authentication
Useful error semantics
Canonical request and response examples
Predictable state-changing operations
Observable agent traffic and audit trails
LLM-readable documentation
Repeatable evaluation workflows
Proof from the plugin
Clara powers the built-in API Readiness Analyzer in the Postman Claude Code plugin. It evaluates API definitions for AI agent compatibility, returns a score, calls out critical failures, and prioritizes recommendations.
48
readiness checks
8
readiness pillars
0-100
scored output
70%+
agent-ready threshold
Metadata
operation IDs, summaries, descriptions, and tags
Errors
error schemas, codes, retry guidance, and failure recovery
Introspection
parameter types, required fields, examples, and constraints
Naming
consistent casing, RESTful paths, and agent-readable names
Predictability
response schemas, pagination, dates, and stable output shapes
Documentation
auth docs, rate limits, usage notes, and task context
Performance
rate limit headers, caching, bulk endpoints, and efficient calls
Discoverability
OpenAPI version, server URLs, and crawlable API entry points
Postman Claude Code plugin
Clara is the foundation for the official Postman Claude Code plugin, bringing API creation, management, testing, and documentation into agentic developer workflows.
API readiness agent
Clara checks whether an API gives agents the contracts, examples, guardrails, errors, and observability they need to operate reliably.
Agentic workflow layer
Clara turns Postman collections, MCP patterns, and Claude Code workflows into a practical readiness model for teams shipping APIs to agents.
Focus
Clara focuses on API readiness for agents.
The goal is to help teams see whether their APIs, docs, collections, and workflows are usable by AI agents before those agents reach production users. That means Clara looks for the details that make APIs discoverable, predictable, debuggable, and safe to operate through Claude Code.