AI Tools With an API

LLM prompt management and evaluation platform for product teams.

Humanloop helps teams manage prompts, run evaluations, and monitor LLM application quality in production — letting product managers iterate on prompts without redeploying code, while engineers track regressions with automated and human-graded evals.

• Prompt versioning and management
• Automated and human-in-the-loop evaluations
• Production LLM monitoring

AI product search and discovery platform built for e-commerce.

Constructor.io is an AI-native search and product-discovery platform purpose-built for online retailers, combining semantic search, personalized recommendations, and merchandising controls to increase conversion on category and search-result pages.

• Semantic, intent-aware product search
• Personalized recommendations
• Merchandiser controls for search ranking

Open-source vector database for AI search and RAG applications.

Weaviate is an open-source vector database that stores data objects alongside their vector embeddings, letting developers combine semantic search with structured filters. It can be self-hosted or used as a managed cloud service, and integrates with most popular embedding models.

• Open-source and self-hostable
• Hybrid semantic + keyword search
• Modules for popular embedding providers

Serverless cloud platform for running AI/ML workloads and GPUs on demand.

Modal lets developers run Python functions in the cloud — including GPU-backed AI inference and training jobs — without managing servers, scaling automatically from zero and billing by the second, popular for deploying custom AI models and batch jobs.

• On-demand serverless GPUs
• Scales to zero, pay-per-second billing
• Simple Python-native deployment

Prompt management and LLM observability platform for teams.

PromptLayer logs every LLM API call a team makes, letting engineers search and replay past prompts, track cost and latency, and manage prompt versions in a visual editor separate from application code — aimed at teams running many LLM calls in production.

• Full LLM request logging and search
• Visual prompt versioning and editing
• Cost and latency tracking

AI-driven real-time supply chain visibility and predictive ETA platform.

FourKites tracks shipments across ocean, rail, and truck networks and uses machine learning to predict arrival times and flag disruptions before they happen, giving supply chain teams a real-time view across their entire logistics network.

• Real-time, multimodal shipment tracking
• ML-based predictive ETAs
• Automated disruption and delay alerts