Coding & AI APIs

36 tools · Coding agents, IDEs, model APIs. Open a tool to see its limits and source.

AI Coding

7 in table view →

Bolt.new

AI app builder with public and private projects, hosting and databases

Catch: Bolt branding on websites; 10 MB upload limit.

Gemini CLI

Terminal coding agent with Google login

Catch: Not stated by vendor

GitHub CopilotNo card

Copilot Free: entry-level models, code completions, chat and agent mode

Catch: Exact free usage is not published; no flex allotment or extra credit purchase on Free.

Google Antigravity

Agentic IDE, unlimited tab completions

Catch: Basic weekly rate limits.

LovableNo card

Free plan with daily credits

Catch: Daily credit cap; credits are not refundable.

v0

Free tier with monthly credits

Catch: 7 messages per day limit.

Windsurf

Free plan with prompt credits and unlimited tab

Catch: Quota is described only as light; frontier models need Pro.

AI Agents

12 in table view →

Aider

Open-source AI pair programming in your terminal (Apache 2.0)

Catch: No hosted plan; you pay your own model API costs unless you run a local model.

Botpress

Free plan: 100 conversations, 3 AI agents, 3 seats

Catch: Only 100 conversations, with no top-ups on the Free plan.

Cline

Open-source coding agent for VS Code and CLI, free for individual developers

Catch: Free software, but you pay your own model inference costs.

CrewAI

Basic plan: visual editor, AI copilot, GitHub integration

Catch: Capped at 50 workflow executions a month; enterprise connectors are not included.

Cursor

Free plan with Cursor Agent, limited agent and chat requests

Catch: Exact usage limits are not published; cloud agents, automations and AI code reviews are paid-plan only.

Dify

Sandbox cloud plan with 200 message credits; free open-source Community edition

Catch: The 200 message credits are for trying it out; after that you use your own API key. The self-hosted Community edition must comply with the Dify Open Source License.

Flowise

Free cloud plan for building AI agents visually; open source

Catch: Only 100 predictions a month on cloud Free; community support only.

Hark

Hark Pro personal AI assistant with all features

Catch: The free usage amount is not stated; paid plans ($20 and $100 a month) add 2x and 10x usage, with no extra features.

Kilo Code

Free and open-source coding agent for VS Code, JetBrains and CLI

Catch: Model usage is billed separately.

Langflow

Open-source visual builder for agents and MCP servers, plus a free cloud account

Catch: Free cloud limits are not stated by vendor.

OpenHands

Free local open-source agent, plus a free Individual cloud plan

Catch: You pay for model usage (your key or at-cost).

Roomote

Self-hosted cloud coding agent, free for up to 10 users

Catch: You run and pay for hosting and inference; the hosted Cloud version is a 7-day trial only.

AI APIs

10 in table view →

Cloudflare Workers AI

10,000 Neurons/day free

Catch: Requests fail with an error past the daily cap (resets 00:00 UTC); some models need a paid billing method.

Cohere

Trial API key for evaluation

Catch: Trial keys are rate limited and may not be used for production or commercial purposes.

Google AI Studio

Free tier for Gemini API in AI Studio

Catch: Free-tier content is used to improve Google products; newest models such as Gemini 4 Argon are not available.

Groq

Free API plan for open models such as gpt-oss-120b, Qwen and Whisper

Catch: Low per-model rate limits.

Hugging Face

Hub hosting, Spaces on free CPU, limited inference credits

Catch: Not stated by vendor

LM Studio

Free desktop app to run local LLMs

Catch: Not stated by vendor

Mistral La Plateforme

Free experiment tier for API

Catch: Not stated by vendor

NVIDIA NIM

Free serverless API endpoints for open models (e.g. Nemotron, DeepSeek, Kimi) for prototyping

Catch: Not for production use; production requires an NVIDIA AI Enterprise license (from $4,500 per GPU per year).

Ollama

Free local model runner

Catch: Starter models only; more cloud models need added credits.

OpenRouter

Chat and API access to 25+ free models from 4 free providers

Catch: No budgets, spend controls or prompt caching on Free.

Dev Tools

7 in table view →

ClerkNo card

User auth and sign-in UI, unlimited apps, 50,000 monthly retained users per app

Catch: Not stated by vendor

Docker

Docker Personal free

Catch: Not stated by vendor

FirecrawlNo card

Web scraping and search API, 1,000 credits a month

Catch: Low rate limits.

LangfuseNo card

LLM tracing, evals and prompt management, 50k units a month

Catch: Only 30 days of data access.

Postman

Free API client for individuals

Catch: Only 50 AI credits a month.

Sentry

Developer: free error monitoring for 1 user

Catch: Limited to one user.

Warp

Free terminal with limited AI requests

Catch: Free AI usage amount is not given.