Zero-cost semantic search you can ship in an afternoon.
Build production-ready search on Cloudflare Workers with an open API that is fast to integrate and easy to self-host.
Cloudflare Workers
Deploy at the edge
OpenAPI
Swagger-ready docs
Self-hosted
Own your stack
Search preview
/v1/search
""
Semantic ranking surfaces relevant documents beyond exact keyword matches,
drawing from intent, context, and semantic similarity.
Results stay consistent across docs, blogs, and research notes without hand-tuned rules.
Latency
Edge optimized
Format
JSON responses
Auth
Bearer tokens
Hosting
Cloudflare
Fast to integrate
Ship semantic search with a single endpoint.
Vector native
Modern retrieval for real-world queries.
Capabilities
Everything you need for production-grade search.
A flexible semantic search stack that prioritizes performance, cost control, and developer experience.
Edge-native runtime
Built for Cloudflare Workers from day one.
Ship search APIs closer to your users, minimize latency, and keep global availability without managing servers.
Zero-cost footprint
Start on the free tier with confidence.
Keep infrastructure costs predictable while you iterate on relevance and user experience.
OpenAPI first
Swagger-friendly docs make it simple to generate SDKs and onboard teams fast.
Semantic core
Vector search with relevance tuned for modern product discovery and support.
Secure by default
Token-based auth and open-source transparency keep your data in control.
Developer Experience
Build once, ship search everywhere.
A clean REST API, predictable responses, and docs that match the runtime keep you moving fast.
Single POST endpoint for querying
Bearer token authentication
JSON responses optimized for UI
OpenAPI schema for SDK generation
curl -X POST https://demo.semanticsearch.ai/v1/search \
-H "Authorization: Bearer DemoAPIKey" \
-H "Content-Type: application/json" \
-d '{
"query": "",
"limit": 10
}'Workflow
A clear path from data to discovery.
Ingest
Send your content through the API and keep your index up to date.
Index
Semantic embeddings power relevance beyond exact keywords.
Query
Retrieve ranked results that match the intent of each search.
Ready to build
Bring semantic search to your product today.
Clone the repo, deploy to Cloudflare Workers, and start shipping relevance without the bill.