Packages

4946 results

OpenTelemetry Go SDK

Developer Tools

Official OpenTelemetry Go SDK for distributed tracing, metrics, and logs. Provides vendor-neutral instrumentation APIs that export telemetry data to Jaeger, Zipkin, Prometheus, Grafana, Datadog, and any OTLP-compatible backend. Used to instrument Go microservices for distributed tracing and metrics without vendor lock-in.

Free tier go opentelemetry otel
62

PagerDuty

Other

Incident management and on-call alerting platform that routes alerts to the right responders, manages escalations, and tracks incident lifecycle via REST API.

Free tier incident-management alerting on-call
62

Passkeys / WebAuthn (FIDO2)

Security

Provides the FIDO2/WebAuthn standard for phishing-resistant, passwordless authentication using device-bound cryptographic credentials, implemented via libraries such as SimpleWebAuthn (JS) and py_webauthn (Python).

Free tier fido2 webauthn passkeys
62

Permit.io

Developer Tools

Authorization-as-a-service platform that lets developers implement and manage fine-grained RBAC, ABAC, and ReBAC access control policies without building policy infrastructure from scratch.

Free tier authorization RBAC ABAC
62

RxDB

Developer Tools

Reactive client-side database for JavaScript applications. RxDB wraps various storage backends (IndexedDB, SQLite, in-memory) with RxJS observables, enabling reactive queries that automatically emit when data changes. Supports real-time replication with CouchDB/PouchDB, GraphQL, and WebSocket sync protocols. Works in browsers, Node.js, React Native, and Electron. Strong focus on local-first apps with offline capability and eventual sync.

Free tier database reactive offline-first
62

Spring Session

Developer Tools

Distributed session management for Spring applications — replaces in-memory HttpSession with a clustered session store (Redis, JDBC, Hazelcast, MongoDB). Spring Session features: @EnableRedisHttpSession replaces default session with Redis-backed session, spring.session.store-type=redis auto-configuration, transparent HttpSession API (no code changes to session.getAttribute()), session namespace isolation, cookie customization (SameSite, Secure, domain), WebSocket session support, reactive WebFlux session, WebSession for reactive apps, and JSON serialization configuration. Solves sticky session requirement for Spring agent services in Kubernetes/load-balanced environments.

Free tier java kotlin spring
62

SwiftNIO

Developer Tools

Apple's low-level asynchronous networking framework for server-side Swift. SwiftNIO is a non-blocking I/O framework (inspired by Netty) built around event loops, channels, and channel handlers. All major server-side Swift frameworks (Vapor, Hummingbird) are built on SwiftNIO. Provides TCP/TLS servers, HTTP/1/2 support, WebSocket handlers, and ByteBuffer for efficient network I/O. Foundation for high-performance Swift backends.

Free tier swift nio networking
62

WireMock API

Developer Tools

WireMock is an open-source API mocking and service virtualization tool with a REST admin API for programmatically creating stubs, recording real API interactions, and resetting mock state during testing.

Free tier api-mocking testing service-virtualization
62

arq

Developer Tools

Lightweight async job queue for Python using Redis, designed for asyncio. Simpler than Celery: define async functions as jobs, enqueue them from any async code, and run workers that execute them. Supports cron scheduling, job deduplication, priorities, and result storage in Redis. The modern asyncio alternative to Celery for Python.

Free tier python redis async
62

kevin. European A2A Payment API

Other

kevin. European account-to-account payment REST API for merchants to accept instant bank transfers directly from customer accounts without card network fees through PSD2 open banking across 5,000+ European banks in 20+ countries for e-commerce, subscription, and marketplace payment integration with lower cost than card processing. Enables AI agents to manage A2A payment initiation for European instant bank payment automation, handle bank redirect authorization for PSD2 open banking checkout automation, access payment status confirmation for European transaction automation, retrieve transaction history for European payment analytics automation, manage refund processing for European order management automation, handle webhook notification for European payment event automation, access bank list and coverage for European payment availability automation, retrieve settlement reporting for European reconciliation automation, manage bank linking for recurring A2A payment automation, and integrate kevin. with European e-commerce, marketplace, and enterprise platforms for end-to-end European A2A bank payment automation.

Free tier kevin A2A-payments open-banking-EU
62

testcontainers-go

Developer Tools

Go library for integration testing with real Docker containers. Spin up actual PostgreSQL, Redis, Kafka, or any Docker image in Go tests and tear them down automatically. Part of the cross-language testcontainers ecosystem. Provides pre-built modules for common services (postgres, redis, kafka, mongodb, localstack) and a generic container API.

Free tier go testing docker
62

ArcticDB

Other

High-performance DataFrame and time series storage engine built for financial data and quantitative research. ArcticDB stores Pandas DataFrames directly in S3-compatible object storage or local files with extremely fast reads/writes for large numerical datasets. Created by Man Group (major hedge fund) and open-sourced in 2023. Provides versioning, snapshots, and concurrent read access to large DataFrames without a database server. The 'database for DataFrames' — not SQL, not key-value, just fast Pandas I/O.

Free tier time-series pandas dataframe
62

Autodesk BIM 360 & Construction Cloud API

Developer Tools

Autodesk Platform Services (APS, formerly Forge) and BIM 360/ACC REST API for construction and design collaboration platform. Enables AI agents to manage BIM model file access and version control automation, handle project and issue management workflow automation, access RFI (Request for Information) and submittal tracking data, retrieve quality and safety observation management, manage drawing and document control workflows, handle project analytics and progress tracking data, access model-based quantity and cost data, retrieve clash detection and coordination issue management, manage project member and permission access control, and integrate construction data with ERP, cost management, and field operations platforms.

Free tier autodesk bim360 construction-cloud
62

CAD-MCP

Developer Tools

MCP server enabling CAD software control through natural language instructions, supporting AutoCAD, GstarCAD, and ZWCAD for creating lines, circles, arcs, rectangles, polylines, text, hatches, dimensions, and layer management.

MCP Priority Free tier cad autocad gstarcad
62

Cube

Other

Semantic layer and headless BI platform that sits between data warehouses and agent/app consumers, exposing curated business metrics via REST, GraphQL, and SQL APIs.

Free tier cube semantic-layer headless-bi
62

GitHub Models

AI & Machine Learning

Free LLM inference marketplace hosted on GitHub and backed by Azure AI, providing OpenAI-compatible API access to models from OpenAI, Meta, Mistral, Microsoft, and others using a standard GitHub personal access token.

Free tier ai llm inference
62

Google Cloud Natural Language API

AI & Machine Learning

Analyzes text to extract entities, sentiment, syntax, and content categories using Google's pre-trained natural language models, accessible via REST or gRPC.

Free tier nlp sentiment entity-extraction
62

HuggingFace Accelerate

AI & Machine Learning

PyTorch distributed training abstraction — enables running the same training code on CPU, single GPU, multi-GPU, TPU, and distributed clusters without code changes. Accelerate features: Accelerator class wraps model/optimizer/dataloader, prepare() method handles device placement, automatic mixed precision (FP16/BF16), DeepSpeed integration, FSDP (Fully Sharded Data Parallel), gradient accumulation, accelerate launch CLI for distributed runs, accelerate config wizard, and experiment tracking integration. Used for agent LLM fine-tuning across varied compute environments.

Free tier python huggingface accelerate
62

Letta (MemGPT)

AI & Machine Learning

Open-source agentic framework (formerly MemGPT) with a REST API server providing agents persistent, structured memory management — enabling agents to remember users, facts, and history across unlimited conversations.

Free tier memgpt persistent-memory agent-framework
62

MCP Odoo Server

Productivity

MCP server that bridges AI assistants and Odoo ERP systems via XML-RPC. Provides URI-based resource access to Odoo models, records, and searches, plus specialized tools for executing methods, searching employees, and querying holiday records.

MCP Priority Free tier odoo erp mcp-server
62
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