Free LLM API application, key testing and tool setup alternatives

Tools that do what Free LLM API application, key testing and tool setup does, found by what they say they do rather than by shelf. Among the equally alike, the most used come first. Each line says how it differs from Free LLM API application, key testing and tool setup.

Read 2026-10-21 · Free LLM API application, key testing and tool setup itself: From $0.15 per use

With a free plan or free to use: CometAPI, Shift-Left API, GitHub, TokenFerry, Cursor, Cloudflare.

10 alternativesUnlike Free LLM API application, key testing and tool setup

#1
CometAPI Developer tools
Unified API providing access to 500 AI models with OpenAI-compatible interface and transparent pricing.
More widely used
6.8k
Active
Free plan
#2
Tokenhot Developer tools
Unified API gateway routing requests to OpenAI, Claude, Deepseek and other LLM providers with regional latency optimization.
Costs moreMore widely used
4
Active
From $1 per use
#3
Testsigma Agentic Test Automation Tool Developer tools
Generates, runs, and maintains automated tests for web, mobile, and API applications with self-healing and confidence scoring.
Also: Agents, Workflow automationMore widely used
131k
Active
Contact sales
2019
#4
Shift-Left API Developer tools
Generates REST, SOAP and GraphQL test suites from specs and requirements, runs them in CI pipelines, and adds performance and security probes.
Also: SecurityCan run on your servers
137
Active
Free plan
2024
#5
APIMart Developer tools
Unified gateway providing discounted access to multiple AI models through a single OpenAI-compatible API.
CheaperMore widely used
7.3k
Active
From $0.01 per use
#6
TestMu AI (Formerly LambdaTest)Developer tools
Runs manual and automated Selenium, Playwright, Cypress and Appium tests on cloud browsers and real mobile devices, with test agents for generating tests.
Also: AgentsMore widely used
370k
Active
From $17/mo
2017
#7
GitHub Developer tools
Hosts Git repositories with pull requests, code review, issue tracking and Actions pipelines for building, testing and deploying code.
Also: Workflow automation, Code generationMore widely used
42M
From $4/user/mo
2007
#8
TokenFerry Developer tools
Unified gateway providing OpenAI-compatible access to multiple AI models including Claude, GPT, and Chinese LLMs with automatic fallback routing.
More widely used
414 linking domains
Active
From $10 once
#9
Cursor Developer tools
AI coding agent that writes code, runs tasks, and reviews pull requests autonomously or with human direction.
More widely used
314k
Active
From $8/mo
2023
#10
Cloudflare Security MCP · open
Proxies website traffic through a global network for CDN caching, DNS, DDoS protection and a web firewall, plus Workers serverless code and zero-trust access.
Also: AgentsMore widely used
4.9M
Active
From $20/mo
2009

← Free LLM API application, key testing and tool setup: the full card All Developer tools tools →

How this list is made: the words Free LLM API application, key testing and tool setup is described with (what it does, for whom, what it is used for) are matched against every tool in the Atlas. A tool on the same shelf, or doing the same kind of work, counts for a little more. Nothing here is paid for.