Zero-Cost Entry9 tools audited

Free API Gateways & Reverse Proxies & Open Source Software

Technical selection of platforms without financial barrier to entry: permanent free tiers, self-hosted projects, and open-source alternatives.

View full catalog for API Gateways & Reverse Proxies

Free Limits & Commercial Threshold Matrix

Exact breakdown of quotas, credit card requirements, and commercial allowances before requiring an upgrade.

ToolModelConditionsFree Tier DetailsSSO TaxAction
Traefik LabsFreemium
No credit card requiredCommercial use allowedUnlimited usage with no expiration
Edición de código abierto Traefik Proxy disponible de forma gratuita e indefinida para uso autoalojado.Single Sign-On Tax (Enterprise SAML)Try
FastlyFreemium
No credit card requiredCommercial use allowedMonthly recurring quota reset
Hasta 100,000 solicitudes gratuitas por mes con facturación posterior basada en volumen.StandardTry
MCP1Freemium
No credit card requiredCommercial use allowedUnlimited usage with no expiration
Acceso individual gratuito para desarrollo y pruebas personales con un límite de servidores y características básicas.StandardTry
MetorialFreemium
No credit card requiredCommercial use allowedUnlimited usage with no expiration
Acceso gratuito indefinido mediante el plan Metorial Dev para desarrolladores y pruebas individuales.StandardTry
HeliconeFreemium
No credit card requiredCommercial use allowedMonthly recurring quota reset
10,000 peticiones gratuitas al mes, 1 GB de almacenamiento y 1 usuario incluido sin necesidad de tarjeta de crédito.Single Sign-On Tax (Enterprise SAML)Try
NangoFreemium
No credit card requiredCommercial use allowedMonthly recurring quota reset
Permanent free tier with monthly usage allowances.StandardTry
HygraphFreemium
No credit card requiredCommercial use allowedMonthly recurring quota reset
Permanent free tier with monthly usage allowances.StandardTry
IQ RoutingFreemium
No credit card requiredCommercial use allowedMonthly recurring quota reset
Plan gratuito inicial sin necesidad de tarjeta de crédito para supervisión de uso y control de claves.StandardTry
OryFreemium
No credit card requiredCommercial use allowedMonthly recurring quota reset
Permanent free tier with monthly usage allowances.Single Sign-On Tax (Enterprise SAML)Try

Audited Free & Freemium Platforms (9)

Traefik Labs

4.6/5.01 verified review
Freemium

Unified control plane for APIs, AI models, and agents in cloud-native architectures.

  • Single lightweight binary consolidating API routing and modern workloads.
  • Infrastructure-as-code orientation with declarative configuration.
  • Native support for air-gapped environments and Kubernetes deployments.
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Fastly

4.5/5.01 verified review
Freemium

Programmable edge cloud platform for high-performance content delivery, security, and computing.

  • High-capacity global network delivering low latency and instant content purging.
  • Native WebAssembly edge compute support across multiple programming languages.
  • Real-time observability and detailed telemetry for web traffic monitoring.
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MCP1

4.5/5.01 verified review
Freemium

Centralized Model Context Protocol gateway with access control and audit logs for engineering teams.

  • Single URL endpoint simplifies configuration across multiple AI clients.
  • Role and group-based permissions without exposing individual API keys.
  • Comprehensive audit logging for every tool invocation and workspace change.
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Metorial

4.5/5.01 verified review
Freemium

Open-source Model Context Protocol and AI skills gateway featuring centralized SSO, OAuth handling, and audit logs.

  • Centralizes access to over 1,000 MCP integrations behind a single corporate gateway.
  • Eliminates shadow MCP usage and scattered API keys in local configuration files.
  • Provides comprehensive audit trails and traceability for every agent tool call.

3.4kstars on GitHub

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Helicone

4.5/5.01 verified review
FreemiumOpen SourceApache-2.0

Open-source LLM observability platform and gateway for production AI applications.

  • Granular token cost and latency monitoring per model
  • Response caching to minimize redundant API calls
  • Lightweight SDK integration for backend services

6.3kstars on GitHub

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Nango

4.5/5.01 verified review
Freemium

Infrastructure platform for managing API integrations and AI agents via code.

  • Support for 1,000+ preconfigured APIs.
  • Developer-centric approach with code-based integrations.
  • Code generation capabilities via natural language.

13.0kstars on GitHub

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Hygraph

4.4/5.01 verified review
Freemium

GraphQL-native federated content platform and headless CMS for multi-brand organizations.

  • GraphQL-native architecture with efficient data federation.
  • Advanced governance capabilities for multi-brand and multi-region environments.
  • Support for direct integration with AI agent workflows.
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IQ Routing

4.3/5.01 verified review
Freemium

Centralized dashboard for AI usage control, budget limits, and intelligent model routing.

  • Unifies multiple AI providers under a single base URL proxy.
  • Enables strict spending caps and team-level budgets.
  • Automated routing reduces operational costs across language model calls.
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Ory

4.0/5.01 verified review
Freemium

API-first, cloud-native identity and access management (IAM) platform.

  • Modular architecture allowing selective service deployment.
  • Native support for open standards like OIDC and OAuth2.
  • Versatile deployment options between managed cloud and self-hosting.
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