Free TierAPI Key AuthOpenAPI Spec
AI-powered search and product discovery platform for e-commerce that uses machine learning to improve search relevance and personalization. Helps retailers increase conversion rates through smarter product recommendations and search results.
#6 of 42 in E Commerce · #13 of 19 in Search
Checklist Breakdown
13 of 33 checks passed.
14 unscored.
Can an agent find and understand this tool without a web search?
✓
Published OpenAPI/Swagger spec
✗
Has llms.txt or llms-full.txt
✗
Has an MCP server (official or well-maintained)
✗
MCP server listed in a public registry
✓
API reference docs are publicly accessible
✓
Docs include runnable code examples
✓
Has a public changelog or release notes
✓
Has a public status page
Can an agent create an account and get credentials without human intervention?
✗
Signup does not require CAPTCHA
✗
Signup does not require phone verification
✓
Supports API key auth (not only OAuth)
✗
API key obtainable without manual approval
✓
No mandatory billing info to start
✓
Can sign up without creating an organization
Can an agent operate autonomously without upfront payment or contracts?
✓
Has a free tier
✓
Usage-based pricing available
✓
No minimum contract or commitment
✓
Pricing page is public (no 'contact sales')
✓
Free tier sufficient for testing (not just a trial)
How well does the API work for non-human consumers?
—
SDK available in 2+ languages
—
Structured error responses (JSON with error codes)
—
Idempotency support on write endpoints
—
Pagination on list endpoints
—
Webhook/event support
—
Sandbox or test mode available
—
Rate limit headers in responses
—
Consistent REST resource naming
Does the tool fail gracefully when an agent makes a mistake?
—
Meaningful error messages (not just 500)
—
429 responses include Retry-After header
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Documented uptime SLA (99.9%+)
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Graceful degradation under rate limits
—
Request IDs in responses for debugging
—
API versioning supported
Reviewer Notes
Klevu offers REST and GraphQL APIs with API key authentication, making basic integration possible for agents. However, discovery is hampered by lack of MCP server or llms.txt, and account creation requires manual dashboard interaction—no programmatic signup available. The sandbox environment and free tier are helpful, but comprehensive API documentation could be clearer for autonomous agent operations. Reliability appears solid for an e-commerce service, though rate limits and SLA details are not prominently exposed.
Let your agents find tools like Klevu
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claude mcp add --transport http agent-native-registry https://agentnativeregistry.com/api/mcp