AI API Router Directory

Helyx markets itself as a unified OpenAI-compatible API gateway for frontier models (Claude Opus 5, Claude Haiku 4.5, GPT-5.4 Nano, Gemini, Kimi, DeepSeek) claiming 50+ models behind one endpoint, with a published rate card of five active models including DeepSeek-V4 Pro at $0.400 in / $0.750 out per 1M tokens (50% off its $0.800/$1.50 list) and MiniMax M3 at $0.300/$1.200. Signup is Google or GitHub with no password, and the account is credited with $10.000000 free: $2.000000 instantly plus $8.000000 released on request. Paid top-ups are crypto-only (USDT, USDC, BTC, ETH, TRON) and every deposit is doubled ($5 pays $10 credit, $25 pays $50), with credits stated to never expire and no subscriptions or daily caps. The domain in this listing, helyx.ai, is dead - it returns a 404 DEPLOYMENT_NOT_FOUND from Vercel - and the live Helyx AI site is served from helyxai.space.

$10.000000 signup credit ($2.000000 instant, $8.000000 released on request) as stated on the helyxai.space homepage and pricing page; the $10 figure is the operator's own published grant, not a conversion.

OpenInference - open-source LLM relay with a single OpenAI-compatible endpoint (Anthropic-format root also available at https://api.openference.com/), API-key auth, automatic provider failover and a zero-data-retention option; free to start, paid plans from USD 1/mo; documented per-model on-demand USD/1M pricing on openference.com/models.

Free plan: 3-day trial with open-source models — no credit card required

VSLLM (Weiyun Model Open Platform) is a commercial AI API relay gateway that aggregates multiple large models. It is OpenAI-compatible and features a daily auto-refreshing free quota for new sign-ups. Claims to offer highly competitive, transparent pricing based on actual token usage.

Free subscription auto-refreshes daily without claiming: ~20 API calls + ~100K tokens/day (non-cumulative, reset next day) ~ $3/mo at $1/1M tokens; also GitHub-star and daily check-in reward activities.

Qoder - AI coding IDE (Agent/Quest modes) with credit-based plans; Free tier (2-week Pro trial with 300 credits, limited completions/NES, BYOK); Pro/Pro+/Ultra; Credit Pack; per-model cost varies by tier multiplier (Auto approx 1.0x, Ultimate approx 1.6x, Performance approx 1.1x, Efficient approx 0.3x now free for paid, Lite free); context options 200K/400K/1M.

Plan quota approx subscription value (approx USD 0.01/credit). qoder.com/pricing headline shows Pro at 4,000 credits incl. a 2,000 first-purchase bonus; docs base is 2,000 credits/mo.

ClinePass — Cline's flat $9.99/month subscription giving 2-5x the usage (vs standard API rates) on a curated set of open-weight coding models from Z.ai, Moonshot AI, DeepSeek, MiniMax, MiMo, and Qwen. No separate provider accounts or API keys needed; usable with other agents via the ClinePass API key. Separate from Cline's pay-as-you-go provider.

Flat monthly quota (2-5x API rate); not a per-token credit system.

Tencent CodeBuddy (CN) — Tencent's AI coding tool (IDE, plugin, CLI) backed by the TokenHub LLM platform. Proxies open-weight models from Z.ai, Moonshot, MiniMax, and DeepSeek under a monthly Token Plan (credit-based). Compatible with Claude Code, Codex CLI, Cline, Cursor, OpenCode, Kilo Code, etc. Note: pricing/model data below is from the documented Tencent Cloud Token Plan pages; CN endpoint specifics (copilot.tencent.com) were not separately fetchable, so this reflects the TokenHub plan as documented.

Credits are the unified billing unit; per-model deduction coefficients apply with DeepSeek peak/off-peak pricing (off-peak = half peak). No clean 1 credit = $X mapping documented, so no creditValueUsd.

Featherless AI provides serverless access to LLMs and agent runtimes. It offers subscription-based 'Chat' plans with unlimited tokens and credit-based 'Developer' plans for API usage. Details were checked against the provider's own page at featherless.ai.

Free tier available — no credit card required

FreeInference (freeinference.org) is an OpenAI- and Anthropic-compatible inference API offering frontier open models free of charge to the research community, with no credit card required at signup. It is presented as built at Harvard SEAS (MadSys Lab) and lists NVIDIA and Harvard SEAS as sponsors. The quota is described only as a "generous quota for research and prototyping"; no numeric limit is published, and the /pricing and /limits paths both return 404. The site carries a banner warning that GLM, Minimax and Kimi will be discontinued on Oct 1, and on Aug 11, 2026 it announced that new account onboarding is paused because the service is at capacity.

No free tier stated on official pages (checked 2026-09-16): freeinference.org offers a free account with a "Generous quota for research and prototyping" but publishes no dollar or token figure, and freeinference.org/pricing returns 404.

Hailuo AI is MiniMax's browser-based video and image generator, currently centred on the MiniMax H3 family. The generator form exposes 2K output, 5-second clips, an Omni Reference field accepting up to 12 reference images and a 21:9 aspect ratio option. Official pages state that new users receive free credits on sign-up, and a homepage banner advertises 3,000 free credits for downloading the companion MiniMax Design app; Hailuo also runs a survey task that awards credits. No per-credit or per-second price list was retrievable from the official pages.

Official homepage states new users receive free credits and a banner advertises 3,000 free credits with the MiniMax Design download, but no USD value or per-credit rate is published, so no dollar figure is set (checked 2026-09-16).

LLM Gateway is a unified AI API router that allows access to over 200 models from multiple providers. It features a 'Hosted Free' plan where free models are accessible with a 5 requests per 10 minutes limit when no credits are available in the account.

No public free-tier information found in the source reference; treat free-tier availability as unverified rather than confirmed absent.

LiteRouter is an AI API aggregator that provides access to hundreds of models from various providers via a single OpenAI-compatible interface. It supports free models with specific daily limits and pay-as-you-go billing for premium variants.

No public free-tier information found in the source reference; treat free-tier availability as unverified rather than confirmed absent.

MegaNova AI is a comprehensive AI API aggregator and infrastructure provider, offering access to 200+ models including GPT-5.6, Claude 4, and proprietary Manta models. It features a tiered free quota system based on account status and spend, plus OpenAI-compatible serverless and dedicated GPU endpoints.

No public free-tier information found in the source reference; treat free-tier availability as unverified rather than confirmed absent.

MiniMax China (minimaxi.com) is the domestic-facing platform for MiniMax's foundation models. It mirrors the global platform's model offering and OpenAI-compatible API but optimizes for mainland China compliance and billing workflows.

No public free-tier information found (researched 2026-08-29).

MiniMax's open platform prices large language models per token with a published input-length threshold: MiniMax-M3 is $0.30 per 1M input tokens and $1.20 per 1M output tokens for prompts up to 512K input tokens, described as a permanent 50% discount off $0.60 / $2.40, and doubles to $0.60 / $2.40 above 512K. M2.7 is $0.30 / $1.20 with prompt-cache reads at $0.06 and writes at $0.375 per 1M tokens; a Priority service tier costs 1.5x standard. The same account also bills video, speech and image work separately, for example H3 video at $0.08 per second in 768P, speech-2.8-hd TTS at $100 per 1M characters and image-01 at $0.0035 per image.

No free tier or free credit stated on official pages (checked 2026-09-16); the documented entry points are prepaid Credits (1,000 credits = $1, packages from $5) and Token Plans from $22 per month.

Naga.ac is a unified AI aggregator providing access to over 240 models via one OpenAI-compatible API. It offers a free tier with 100 requests per day and a pay-as-you-go model with competitive rates, occasionally lower than direct provider pricing for select models.

No public free-tier information found in the source reference; treat free-tier availability as unverified rather than confirmed absent.

TGhan (Xiao Yu Yun API) is a feature-rich AI API relay providing unified access to over 30 LLM providers including OpenAI, Claude, and Grok. It offers professional features like empty-response compensation, transparent usage logs, and multi-protocol support optimized for high stability.

Confirmed paid-only via direct /api/pricing check: 49 models, all paid (fixed-price quota_type=1 or per-token model_ratio>0); zero free-price entries. Top-up is via third-party redemption codes.

UnoRouter is a unified AI API platform providing access to hundreds of models through a single intelligent endpoint. It is fully OpenAI-compatible and supports various clients including coding agents, character chat, and CLI tools. Features both pay-as-you-go and subscription plans with credit bonuses.

No public free-tier information found in the source reference; treat free-tier availability as unverified rather than confirmed absent.