Packages

4763 results

Zarr

Developer Tools

Chunked, compressed N-dimensional array storage for Python — cloud-native alternative to HDF5. Zarr features: zarr.open() for local/cloud arrays, zarr.zeros/ones/empty for creation, chunk-based storage (chunk=(100, 100)), compression (Blosc, Zstd, Zlib, LZ4), multiple backends (local filesystem, S3, GCS, Azure Blob via fsspec), consolidated metadata, zarr.Group hierarchy, append-friendly arrays, zarr.convenience.copy_all for HDF5 migration, thread-safe reads, and parallel writes with synchronization. Cloud-native format — arrays stored as directories of chunk files readable from S3 without full download. Used with Dask for out-of-core processing of TB-scale datasets.

Free tier python zarr chunked-arrays
61

clickhouse-driver (Python)

Other

Python driver for ClickHouse using the native TCP protocol. Provides synchronous and async (asynch) interfaces for connecting to ClickHouse databases from Python. More efficient than HTTP-based clickhouse-connect for high-throughput operations. Used by data engineers, analytics engineers, and Python ML pipelines that need to query or ingest into ClickHouse.

Free tier python clickhouse olap
61

@grpc/grpc-js

Developer Tools

Pure JavaScript/TypeScript gRPC implementation for Node.js. Supports unary RPCs, server streaming, client streaming, and bidirectional streaming. Works with protobuf code generation (@grpc/proto-loader) for type-safe service definitions. Used for high-performance inter-service communication in microservice architectures.

Free tier grpc protobuf rpc
61

Apache Camel

Developer Tools

Enterprise integration framework implementing the Enterprise Integration Patterns (EIP). Apache Camel provides 300+ connectors (Camel Components) for integrating with virtually any system: Kafka, AWS SQS/S3/Lambda, REST, HTTP, databases, FTP, SMTP, Salesforce, SAP, and more. Uses a DSL (Java, Kotlin, XML, YAML) to define integration routes: from() → process() → to(). Handles transformation, splitting, aggregating, filtering, error handling, and retry logic. Runs standalone or embedded in Spring Boot/Quarkus. The "Swiss Army knife" of Java integration.

Free tier java kotlin integration
61

Azure DevOps MCP

Developer Tools

Official Microsoft MCP server that brings Azure DevOps capabilities directly to AI agents in VS Code, Claude Code, and Cursor. Manages projects, work items, builds, repositories, wikis, test plans, and iterations through natural language prompts.

MCP Priority Free tier azure-devops mcp microsoft
61

Dagger CI/CD Pipeline Engine

Developer Tools

Programmable CI/CD engine that runs containerized build pipelines defined in Go, Python, or TypeScript, executing consistently across local machines, CI systems, and cloud environments using a built-in GraphQL API.

Free tier ci-cd pipelines containers
61

Elastic APM API

Other

Elastic APM Intake API — application performance monitoring server that receives traces, spans, transactions, errors, and metrics from APM agents via HTTP intake API, enabling agents to ingest custom telemetry data and query APM data stored in Elasticsearch for performance analysis.

Free tier elastic apm tracing
61

Ensembl REST API

Other

Ensembl REST API provides programmatic access to the Ensembl genome browser database, covering gene annotations, sequence retrieval, variant data, comparative genomics, and phenotype associations for 200+ species.

Free tier ensembl genomics bioinformatics
61

FullContact Identity Resolution API

Other

Resolves fragmented identity signals (email, phone, social, MAIDs) into unified person and company profiles with employment, demographic, and social data for enrichment and identity verification use cases.

Free tier enrichment identity-resolution person-data
61

Grafana Loki

Developer Tools

Prometheus-inspired horizontally scalable log aggregation system that indexes only metadata labels, making it cost-efficient for storing and querying agent logs.

Free tier grafana loki logging
61

Helidon

Developer Tools

Oracle's lightweight Java microservice framework — supports two styles: Helidon MP (MicroProfile compliant, CDI injection, JAX-RS REST) and Helidon SE (functional reactive style, no IoC container). Helidon 4.x uses Java 21 Virtual Threads (Project Loom) for high concurrency without reactive programming complexity. Key features: GraalVM native image support (fast startup, low memory), built-in health checks (MicroProfile Health), metrics (MicroProfile Metrics), tracing (Jaeger/Zipkin), security (JWT, OAuth2, OIDC), and OpenAPI (MicroProfile OpenAPI). Oracle's alternative to Quarkus and Micronaut.

Free tier java microservices rest
61

Lightdash

Other

Open-source BI tool that builds directly on dbt models and metrics, exposing a REST API for programmatic chart and dashboard access — enabling agents to query curated business metrics without raw SQL.

Free tier lightdash bi business-intelligence
61

Lunar

Other

An API gateway platform that mediates between applications/AI agents and external APIs. Provides traffic visibility, policy enforcement, rate limiting, retries, circuit breakers, and cost optimization. Lunar MCPX aggregates multiple MCP servers into a single gateway with unified access control.

MCP Free tier api-gateway mcp governance
61

Mixpanel

Other

Product analytics platform with REST APIs for ingesting user events and querying funnels, retention, segmentation, and cohort reports programmatically.

Free tier analytics event-tracking product-analytics
61

NVIDIA NIM API

AI & Machine Learning

Provides OpenAI-compatible LLM inference via NVIDIA-optimized TensorRT-LLM containers deployable on-premises or via nvidia.com hosted endpoints (api.nvcf.nvidia.com), supporting Llama, Mistral, Mixtral, Nemotron, and other models with hardware-accelerated throughput.

Free tier ai llm inference
61

Nevergrad

AI & Machine Learning

Gradient-free optimization library by Meta (Facebook Research) — optimizes functions that don't have accessible gradients using evolutionary, Bayesian, and quasi-random methods. Nevergrad features: ng.optimizers.registry for 70+ optimizers (CMA-ES, DE, NGOpt, PSO, SQPCMA), ng.p.Scalar/Array/Choice/Dict for parameter spaces, instrumentation for complex mixed-type spaces, optimizer.ask()/tell() suggest-update API, budget parameter for evaluation count, multi-objective optimization, parallelism, and constraint support. NGOpt is the recommended adaptive meta-optimizer. Used for ML hyperparameter tuning, prompt optimization, neural architecture search, and any black-box optimization problem.

Free tier python nevergrad optimization
61

NewsAPI

Other

Aggregates news articles and headlines from 150,000+ sources worldwide via a simple REST API.

Free tier news media rest-api
61

ODMantic

Developer Tools

AsyncIO MongoDB Object-Document Mapper (ODM) built on Pydantic and Motor. Define MongoDB document schemas as Pydantic models, then use ODMantic's AIOEngine for type-safe async CRUD operations. Works seamlessly with FastAPI's Pydantic models for MongoDB-backed agent services. ODMantic handles ObjectId serialization, embedded models, and type coercion — the async-native alternative to MongoEngine.

Free tier mongodb python pydantic
61

PSPDFKit API

Developer Tools

Document processing API for PDF generation from HTML, form filling, digital signatures, annotations, and watermarking.

Free tier pdf annotations digital-signatures
61

Pact

Developer Tools

Consumer-driven contract testing framework that ensures microservices communicate as expected. The consumer writes tests defining what it expects from the provider API. Pact generates a contract (pact file) which the provider then verifies. Prevents integration failures by catching API breaking changes before deployment. Supports REST and message-based (async) contracts. PactFlow provides managed contract hosting.

Free tier contract-testing consumer-driven microservices
61
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