Offers broader multi-provider model routing with instant top-ups, but lacks self-hosted deployment flexibility.
Offers broader multi-provider model routing with instant top-ups, but lacks self-hosted deployment flexibility.
LLM Gateway records 168,426 monthly visits with -14.5% month-over-month growth and Freemium, Contact for Pricing pricing. Postman records 1,764,877 monthly visits with -7.6% growth and Freemium pricing.
One OpenAI-compatible API to route, monitor and control 250+ LLM models
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | llmgateway.io | postman.com |
| Pricing Model | Freemium, Contact for Pricing | Freemium |
| Monthly Visits | 168.43K (168,426) | 1.76M (1,764,877) |
| MoM Traffic Delta | -28.46K (-14.5%) | -144.52K (-7.6%) |
| Primary Market & Share | 🇰🇷 South Korea (18.1%) | 🇮🇳 India (22.9%) |
| Direct Visits / mo | 98.62K | 580.23K |
| User Rating | 4.6 | 4.7 |
| Supported Platforms | Website | Website |
One OpenAI-compatible API to route, monitor and control 250+ LLM models
Keep your existing OpenAI SDK code and change only the base URL to reach 250+ models from 40+ providers through one integration.
If a provider errors, times out or rate-limits, the gateway can retry up to twice on another provider within the same request, so your app still gets a response.
Track requests, tokens, total spend and average cost per 1K tokens, plus per-model and per-provider breakdowns, cache hit rates and error monitoring.
Detect prompt injection, jailbreak attempts, PII, card numbers and secrets, then block, redact or warn; manage all provider keys in one scoped dashboard.

Design, test, and govern APIs — now with AI agents in the loop
A multi-protocol client with collections, environments, variables, and reusable requests that works for local debugging and for driving automated test suites.
Generates assertions automatically, supports data-driven runs with exported datasets, and executes tests locally, in the cloud, or from CI pipelines via the Postman CLI.
Agent Mode, the Postman CLI agent skills, and a Model Context Protocol server let coding assistants build collections, write tests, and trigger API workflows from inside the editor.
A structured, queryable map of an organization's APIs, collections, and dependencies that lets agents find the right service and understand what a schema change would break.
Offers broader multi-provider model routing with instant top-ups, but lacks self-hosted deployment flexibility.
Offers broader multi-provider model routing with instant top-ups, but lacks self-hosted deployment flexibility.

SpecialistIntegrates API testing and development directly inside your code editor, but lacks Postman's dedicated workspace collection management and documentation publishing.
SpecialistIntegrates API testing and development directly inside your code editor, but lacks Postman's dedicated workspace collection management and documentation publishing.
SpecialistExcels at autonomous multi-file code generation and repository-wide understanding, but is not purpose-built for manual API endpoint testing.
SpecialistExcels at autonomous multi-file code generation and repository-wide understanding, but is not purpose-built for manual API endpoint testing.
Free / Open-sourcePowerful visual workflow automation and API integration builder, but lacks Postman's granular API request inspection and documentation features.
Free / Open-sourcePowerful visual workflow automation and API integration builder, but lacks Postman's granular API request inspection and documentation features.

Free / Open-sourceOpen-source control plane for orchestrating coding agents
Features adaptive LLM routing and automatic failover, but has a smaller ecosystem than established aggregators.
Features adaptive LLM routing and automatic failover, but has a smaller ecosystem than established aggregators.
SpecialistAutomates end-to-end testing using plain language agents, but lacks Postman's manual debugging and environment variable management tools.

Free / Open-sourceProvides a robust open-source proxy and Python SDK for multi-LLM routing, but requires self-hosting infrastructure.

Unifies access to 100+ frontier models with built-in chat UI, but offers fewer enterprise compliance integrations.
Unifies access to 100+ frontier models with built-in chat UI, but offers fewer enterprise compliance integrations.

SpecialistOffers superior test case management and CI integration for QA workflows, but lacks native API request crafting and mocking tools.
SpecialistOffers superior test case management and CI integration for QA workflows, but lacks native API request crafting and mocking tools.
One API key for hundreds of AI models
Delivers advanced enterprise observability, caching, and guardrails, but focuses more on production monitoring than raw routing.
Delivers advanced enterprise observability, caching, and guardrails, but focuses more on production monitoring than raw routing.