liveuprouter — AI API router and gateway

Find the best AI API routers.
Use them all with one API key.

UPROUTER is an OpenAI- and Claude-compatible gateway: plug in your API keys from 310 routers (eg. OpenRouter, AWS Bedrock, Alibaba Cloud), then route every request with any model, through any vendor — via a single URL with failover aliases, daily spend caps and per-request compute metering you can audit line by line.

BYOK keys — AES-256-GCM encrypted
failover aliases, cheapest-first
daily caps with soft-limit headers
per-request compute metering

Open Connect Get free welcome compute

Explore the directory

gateway — first request

$ curl https://uprouter.online/api/connect/v1/chat/completions \
   -H "Authorization: Bearer upr_live_…" \
   -d '{"model": "sandbox-echo"'}'

← 200 OK · 412ms · 0.0002 compute · routed via sandbox-echo
  audit log: tokens in/out, latency, cost — per request

  {
    "id": "chatcmpl_9f2…",
    "model": "sandbox-echo",
    "routed_via": "sandbox-echo",
    "usage": { "compute": 0.0002, "tokens": "42/310" }
  }

endpoint

/api/connect/v1

auth

Bearer upr_live_…

metering

compute / request

routers 310 free-tier 215 connect 211 live up 116 models 490 free quota 215

refer a developer+50 compute

they get 10 — you get 50

// the index — expansive, community-regulatedno affiliate ordering · no pay-to-rank · uprouter.online

310 routers & providers · 490 models tracked · $4.3k free credits

// community-regulatedthe ranking is earned, never bought

Every entry answers to the community

The index is expansive; the community keeps it honest. Votes, reviews and verified corrections feed straight back into rankings and data confidence.

Vote
Upvote routers that deliver, downvote the ones that don’t — the score re-ranks the index.
Review
Evidence-based reviews with verification tags. Ratings, not vibes.
Verify
Corrections that survive review earn compute — and flip the entry to verified.

Join & start voting Earn compute for reviews →

Anyone can edit this index

Every router page has an edit button — propose corrections to descriptions, prices and free tiers. Editors review each proposal before it goes live, and accepted edits earn compute.

Propose
Open a router page, hit the edit button, and detail your proposed corrections.
Review
Editors rigorously verify every proposed correction against primary sources.
Live
Accepted edits are published instantly, and you earn compute for your work.

Browse the index → pick edit

Commercial aggregator

$ 70 entries match — showing 49–70 · sort: Free credits ↓

Commercial aggregator
unknownupdated 3d ago
nano-gpt.com
source · nano-gpt.com/pricing
overview
NanoGPT (nano-gpt.com) is a large-scale AI API aggregator providing access to 1,000+ models with strict 'list price' pay-as-you-go billing. It supports OpenAI-compatible endpoints for text, image, and video models, adding a flat 5% fee only for opt-in features like BYOK or pinned providers.
free quota
No public free-tier information found (researched 2026-08-29).
free models
Gemini 2.5 ProGPT-4oclaude-sonnet-4-6
see nano-gpt.com’s free quota / risk review →
Commercial aggregator
unknownupdated 3d ago
api.navy
source · api.navy/pricing
overview
NavyAI (api.navy) is a unified AI API gateway providing access to 150+ models through flat-rate subscription plans with daily token quotas. It offers an OpenAI-compatible interface, 'Login with Navy' OAuth for BYOP workflows, and plans ranging from a basic free tier to high-volume 'Apex' tiers.
free quota
No public free-tier information found in the source reference; treat free-tier availability as unverified rather than confirmed absent.
free models
DeepSeek V3.2Llama 3.3 70B InstructLlama 4 Maverickgemini-3.1-pro-previewgpt-5.4claude-opus-4-6
see api.navy’s free quota / risk review →
Commercial aggregator
up238msupdated 16h ago
api.nexusvai.xyz
source · nexusvai.xyz
overview
NexusVAI is a multi-model API platform providing a unified, OpenAI-compatible endpoint for frontier LLMs. It features a developer-centric playground (CancriCode) and offers pay-as-you-go access to a broad range of open and proprietary models with an emphasis on ease of integration.
free quota
No public free-tier information found (researched 2026-08-28).
free models
— none tracked
see api.nexusvai.xyz’s free quota / risk review →
Commercial aggregator
unknownupdated 3d ago
ofox.ai
source · ofox.ai/pricing
overview
OfoxAI is an enterprise AI gateway aggregating 100+ models from OpenAI, Anthropic, Google, and more. It offers official provider pricing with a 0% platform fee and includes built-in budget controls and audit logs.
free quota
No public free-tier information found in the source reference; treat free-tier availability as unverified rather than confirmed absent.
free models
DeepSeek V4 Flash Vision Expglm-5.3gemini-3.7-flashQwen3.8 Max (0902)gpt-5.6-solgrok-4.6+6
see ofox.ai’s free quota / risk review →
Commercial aggregator
up152msupdated 15h ago
orcarouter.ai
source · orcarouter.ai
overview
OrcaRouter is an LLM gateway offering zero token markup and adaptive routing across 200+ models. It is OpenAI-compatible and supports both pay-as-you-go and subscription plans with a handful of free-tier models.
free quota
Free-forever 'Hacker' plan: only $0-priced -free models and orcarouter/free endpoint are genuinely free, limited by request rate; probe showed $0 auto-grant. '1B free tokens'/voucher promos lack verifiable terms.
free models
orcarouter/freedeepseek/deepseek-v4-flash-freeqwen/qwen3.8-27b-freetencent/hy3-free
see orcarouter.ai’s free quota / risk review →
Commercial aggregator
unknownupdated 3d ago
poixe.com
source · poixe.com
overview
Poixe AI is a commercial AI API router and aggregator that provides a unified interface for multiple LLM upstreams. It features model-group specific rate limits and a dashboard for API key management, targeting developers seeking simplified access to global and Chinese models.
free quota
No public free-tier information found in the source reference; treat free-tier availability as unverified rather than confirmed absent.
free models
Qwen2.5 72B InstructDeepSeek ChatMeta-Llama-3.1-70B-InstructMistral: Mixtral 8x7B InstructMoonshotAI: Kimi K1.5Anthropic: Claude 3.5 Sonnet+2
see poixe.com’s free quota / risk review →
Commercial aggregator
up582msupdated 16h ago
ai.prox.us.ci
source · ai.prox.us.ci
overview
Prox (Aiproxy) is a closed AI API relay based on New-API, restricted to users with OAuth access from the external forum dc.hhhl.cc. It offers Stripe integration for paid top-ups and primarily serves a private community with aggregated access to frontier models.
free quota
Unknown/almost none — password signup disabled (password_register_enabled=false), check-in disabled (checkin_enabled=false), admission only via dc.hhhl.cc OAuth with Stripe (unit_price=8); no evidence of public free quota.
free models
— none tracked
see ai.prox.us.ci’s free quota / risk review →
Commercial aggregator
up121msupdated 16h ago
rrrapi.com
source · rrrapi.com
overview
RRRapi is a third-party AI API relay built on the New API (One API) framework. It provides an OpenAI-compatible endpoint that aggregates multiple upstream models, featuring a balance-based top-up model with Stripe integration for credits.
free quota
Operator's own routerpark listing title: '注册总共送110, 0.5倍率' — signup bonus totalling 110 in site credit, currency unspecified (~$15 if CNY). Claim unverified by users; otherwise a Stripe pay-as-you-go relay.
free models
— none tracked
see rrrapi.com’s free quota / risk review →
Commercial aggregator
up232msupdated 16h ago
renai.uno
source · renai.uno
overview
RenAI (renai.uno) is an OpenAI-compatible AI API gateway that aggregates multiple global and Chinese models, including OpenAI, Anthropic, Google, and DeepSeek. It operates on a balance top-up model and is designed for users needing high-compatibility access to a broad range of upstreams.
free quota
freeairouter: bonus/invite-code features disabled, no free quota seen — effectively a paid top-up relay (Claude/OpenAI compatible; veridrop median 96/100 quality).
free models
— none tracked
see renai.uno’s free quota / risk review →
Commercial aggregator
up54msupdated 15h ago
api.supxh.xin
source · api.supxh.xin
overview
SupXH (api.supxh.xin) is a generic AI API relay service providing a direct connection endpoint for various LLMs. It functions as a third-party aggregator with a minimal web presence, primarily serving as a host for OpenAI-compatible client configurations.
free quota
Live new-api relay behind free.supxh.xin free (gongyi) station; community posts report signup bonus ~7,000-8,000 quota units (unit unclear, not USD) + ~2,000/day check-in credit. Not verifiable in USD.
free models
— none tracked
see api.supxh.xin’s free quota / risk review →
Commercial aggregator
up685msupdated 16h ago
api.tghan.xyz
source · api.tghan.xyz
overview
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.
free quota
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.
free models
gemini-3-flashgemini-3.1-pro-preview-thinking[企业]gemini-2.5-pro-thinking[企业]gemini-3.1-pro-highgemini-3.7-flash-lowgemini-3.6-flash-high+27
see api.tghan.xyz’s free quota / risk review →
Commercial aggregator
unknownupdated 3d ago
tabitoken.com
source · tabitoken.com
overview
TabiToken is a unified AI API platform built on the NewAPI protocol, providing low-latency access to a wide selection of models including OpenAI, Claude, and Gemini. It features real-time usage monitoring and multi-region deployment for global access.
free quota
No public free-tier information found (researched 2026-08-29).
free models
— none tracked
see tabitoken.com’s free quota / risk review →
Commercial aggregator
unknownupdated 3d ago
theb.ai
source · theb.ai
overview
TheB.AI is a versatile AI model aggregator and chatbot platform providing access to multiple frontier models (GPT-4, Claude 3, Gemini) via a unified API. It features a pay-as-you-go model and an OpenAI-compatible gateway.
free quota
No public free-tier information found in the source reference; treat free-tier availability as unverified rather than confirmed absent.
free models
Gemini 2.5 Proclaude-sonnet-5GPT-4o
see theb.ai’s free quota / risk review →
Commercial aggregator
unknownupdated 3d ago
agent-router.gaib.ai
source · gaib.ai
overview
Token Kiosk (gaib.ai) is an AI model router and aggregator part of the GAIB AI infrastructure capital platform. it provides access to various open and proprietary models, potentially linked to compute-backed financial assets.
free quota
No public free-tier information found in the source reference; treat free-tier availability as unverified rather than confirmed absent.
free models
[次]kimi-k2.5MiniMax-01gemini-3.1-pro-preview
see agent-router.gaib.ai’s free quota / risk review →
Commercial aggregator
unknownupdated 3d ago
www.tokenreply.com
source · tokenreply.com/pricing
overview
TokenReply is a high-volume AI model aggregator offering access to advanced models (GPT-6 Astra, Claude 4.6, DeepSeek-V4 Pro) via an OpenAI-compatible gateway. It features pay-as-you-go billing with various tier-based model rates.
free quota
Free-tagged models have model- and campaign-specific daily limits; no fixed global free quota is published.
free models
— none tracked
see www.tokenreply.com’s free quota / risk review →
Commercial aggregator
unknownupdated 3d ago
tokenrouter.com
source · tokenrouter.com
overview
TokenRouter (tokenrouter.com) is an AI model API aggregator providing a unified gateway to multiple frontier LLMs. It exposes an OpenAI-compatible endpoint for integration with standard SDKs and tools.
free quota
No public free-tier information found in the source reference; treat free-tier availability as unverified rather than confirmed absent.
free models
Claude 3 HaikuDeepSeek ChatQwen-PlusMistral LargeGPT-4oGPT-4 Turbo
see tokenrouter.com’s free quota / risk review →
Commercial aggregator
down197msupdated 16h ago
api.uniexpand.com
source · api.uniexpand.com
overview
UniExpand (Knowledge PRO API) is a unified AI application infrastructure provider. It offers a powerful API management platform to connect various frontier LLMs, focusing on enterprise-ready security, millisecond response times, and multi-region deployment for global access.
free quota
Unknown (open registration, priced in CNY with Stripe payment; no clear free giveaway observed).
free models
— none tracked
see api.uniexpand.com’s free quota / risk review →
Commercial aggregator
unknownupdated 3d ago
unorouter.ai
source · unorouter.com/en
overview
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.
free quota
No public free-tier information found in the source reference; treat free-tier availability as unverified rather than confirmed absent.
free models
gemini-3.1-flash-litezai-glm-4.7MiniMax-M3mercury-2Qwen3.8 FlashNemotron 3 Nano 30B A3B+5
see unorouter.ai’s free quota / risk review →
Commercial aggregator
up446msupdated 16h ago
ai.wuqiongyun.top
source · ai.wuqiongyun.top
overview
Wuqiongyun is an anonymous Chinese AI API relay aggregating GPT, Claude, and Gemini models using the New-API panel. It specializes in reselling access with model-specific multipliers, often including 'anti-reverse' and 'kiro channel' model variants.
free quota
Directory listings (routerpark 2026-03, routerhub): invite registration quota + daily check-in credit, 600+ models; amount unpublished. Prior probe showed checkin_enabled=false — config may change.
free models
doubao-seedream-4-5-251128doubao-seedream-5-0-260128grok-imagine-imagesuno_music_openspeech-2.6-hdgpt-image-2-c+34
see ai.wuqiongyun.top’s free quota / risk review →
Commercial aggregator
up2957msupdated 16h ago
xiaolangwangyue.gettoken.dev
source · gettoken.dev/pricing
overview
Xiaolangwangyue (integrated with GetToken.dev) is an AI API aggregator platform offering highly discounted balance top-up plans and subscriptions for ChatGPT (GPT-6/5.6/5.4) and other models. It follows a 1:1 official rate deduction from a prepaid USD balance bought with CNY at significant discounts.
free quota
GetToken is a paid Codex API reseller (ChatGPT Pro 20x resources; balance plans from ¥0.15 per $1). 'First recharge offer' is a paid promo; dashboard has a 'Free trial quota' field but no public free-credit offer.
free models
— none tracked
see xiaolangwangyue.gettoken.dev’s free quota / risk review →
Commercial aggregator
up102msupdated 15h ago
zenmux.ai
source · zenmux.ai/pricing
overview
ZenMux is a commercial unified API gateway providing access to 100+ mainstream AI models. It features a unique 'LLM insurance' mechanism that compensates users for slow or failed requests. The platform aggregates models from official providers and authorized cloud partners.
free quota
Free tier: basic monitoring plus some free models; once ran limited-time free trials of Claude Opus 4.6 and similar; core is pay-as-you-go with Pro/Max/Ultra paid subscriptions. No quantifiable standing credit.
free models
moonshotai/kimi-k3-freez-ai/glm-4.7-flash-freez-ai/glm-4.6v-flash-freesapiens-ai/agnes-2.0-flashz-ai/glm-5v-turbo
see zenmux.ai’s free quota / risk review →
Commercial aggregator
unknownupdated 3d ago
b.ai
source · b.ai
overview
b.ai is an OpenAI-compatible LLM gateway (distinct from TheB.AI) focusing on unified multi-model access and privacy. It supports native crypto payments and anonymous access via the https://api.b.ai/v1 base URL.
free quota
No public free-tier information found in the source reference; treat free-tier availability as unverified rather than confirmed absent.
free models
Gemini 3.8 FlashQwen3.8 Max (0902)GPT-6 AstraClaude Fable 5.1
see b.ai’s free quota / risk review →

// about_uprouter

UPROUTER.ONLINE is an independent, developer-facing directory of AI API providers. It tracks model aggregators, official first-party APIs, free relays, subscription routers and cloud platforms in one index. Inclusion is an editorial decision made on the merits of the data — it is never sold, and no listing position can be bought.

We do the normalization once so you can compare on facts instead of marketing: prices are expressed in USD per 1M tokens, free tiers are valued at each provider’s own pay-as-you-go rates, and reliability comes from our own best-effort uptime probes rather than self-reported status pages. Every entry carries source URLs, a verification date, a data-confidence flag and a change history.

The directory is informational only and is not an endorsement of any provider. Prices and free-tier values change frequently — always confirm current terms with the provider before you purchase. The full methodology, independence and non-endorsement policies are documented in detail, and you can reach the editors via /contact for corrections, takedowns or partnership questions.

$ free AI API key — a practical guide

Everything below is written for the person who just typed free AI API key into a search box: what the key is, how to get one, what “free” really costs, and how to use more than one without managing six dashboards. It is the prose companion to the live index above, which tracks the same providers with current numbers.

What is a free AI API key?

An AI API key is the credential your program uses to call a language model. Think of it as a password for a specific service: it identifies you, authorizes the request, and is what the provider meters and bills. A free AI API key is the same object, except the usage behind it is covered by the provider rather than your credit card — at least for a while.

Under the hood, the flow is always the same. You create a key in a provider’s dashboard, you send it with each request, and the provider runs your prompt on a model and returns tokens. The free part is a policy layer on top of that plumbing: a monthly credit budget, a per-minute and per-day rate cap, or a restricted list of models marked free. None of those policies change the fact that a free key and a paid key are the same shape of string pointed at the same kind of endpoint.

The reason the distinction matters in practice is that a free key is usually metered against a budget you did not choose to spend. When the budget empties, your request stops working until you reset the period, top up, or switch models. A paid key is metered against money you explicitly put there. Everything else — the header, the JSON request, the streaming response — is identical, which is exactly why a single gateway can sit in front of both.

How to get a free AI API key in 2026

Getting a free key takes minutes. The steps are the same at nearly every provider, so you can pick whichever free tier fits your use case and follow the pattern:

Choose a provider. If you want the easiest first experience, Google AI Studio or Groq are the most forgiving. If you want the widest choice of models behind one key, OpenRouter is hard to beat. The directory above lists each option with its current free-credit value so you are not guessing.
Create an account. An email address is enough for most free tiers. A handful ask for a card on file for abuse prevention but will not charge you until you move to a paid plan — read that note before you enter it.
Generate the key. In the dashboard’s “API keys” or “credentials” page, click create. The key is shown once; copy it to a secrets manager or environment variable immediately. Do not paste it into client-side code or a public repo.
Make a test call. Send a tiny completion request to confirm the key works and the free tier is active. If the response includes a usage or rate-limit header, note the numbers — those are the real limits you are working within.
Decide where to keep it. Either point your application straight at the provider, or drop the key into a gateway like Uprouter Connect so you can add more keys, set spend caps, and fail over when a free tier throttles you.

One nuance worth internalizing: the value of a free key is not that it exists, it is that it is portable. Because every free key talks the same OpenAI- or Claude-compatible protocol, the code you write against one key will run against another with only the base URL and the credential changed. That portability is what makes it sensible to hold several free keys and route among them.

Free key vs. free credits vs. free tier

People say “free AI API key” and “free credits” interchangeably, but they are three different things, and confusing them is how a project quietly stops working at exactly the wrong moment.

The key is the credential. It has a value only in that it grants access to whatever budget is attached to your account.
Free credits are a dollar amount of usage the provider has fronted for you — a signup grant or a trial balance. They are one-time in most cases: spend them and they are gone until the provider replenishes them.
A free tier is a standing, rate-limited plan you can use month after month. It is usually the “always available” part of a free key, with credits layered on top for a burst.

When you evaluate a provider for a free key, ask three questions. First, how many credits do I get on signup, and do they ever come back? Second, what is the standing free tier — which models, and what are the per-minute and per-day caps? Third, is there a hard wall — a day when the key requires payment to keep working? The directory above values the free tier at each provider’s own pay-as-you-go rates so the “how much is this actually worth” question is answered in one comparable number.

Safety and terms: what “free” actually means

The three things a free key’s terms almost always get wrong for the user are privacy, durability, and data use. Read for all three before you build on top of a free tier.

Data and training

Many free tiers may use your prompts and completions to improve models; paid plans usually may not, or let you opt out. If your traffic contains anything you would not want a model vendor to see, this single clause can disqualify a free key for production regardless of how generous the credits are.

Durability

A free tier is a marketing surface, not a service level. Limits can be reduced, models can rotate, and free previews can end. Treat any free key as best-effort and keep at least one alternative key warm so an upstream change is a config swap, not an outage.

Responsible use

Rate limits exist for the provider’s cost and your neighbors’ latency. Hitting them aggressively, or routing shared keys across many users, is the fastest way to get a free account suspended. Meter your own calls, cache what you can, and keep a per-user or per-project cap so one caller cannot burn the shared budget.

The risk tier on each entry in the directory above is our editorial read of exactly these questions — established operator versus young relay, clear terms versus vague ones, stable history versus a history of limit changes. It is one signal among many, and it is always paired with the source so you can verify it yourself.

The most useful free AI API keys right now

A shortlist to start from, grouped by what the free tier is best for. Free tiers change often, so treat the notes as the shape of the offer, not a spec — the live index above has the current credit values, rate-limit observations, and risk tier for each.

Provider	Models	Free offer	Notes
Google AI Studio	Gemini API	Free tier with rate limits	Standard models are free to key with no card; heavy or pro models move to paid. Good first key for chat and embeddings.
Groq	Llama, Gemma, and more	Free API key, fast inference	One of the lowest-latency free keys around; per-minute and per-day rate limits apply.
OpenRouter	Hundreds of models	Free :free model routes	A router with free variants of many models marked :free, plus a credit system for paid ones.
Mistral AI	Mistral, Codestral	Free La Plateforme tier	Free-tier keys with rate limits; a paid tier unlocks higher throughput.
Hugging Face	Open models	Free inference providers	Free access to a range of open models through hosted inference, subject to per-day quotas.
Cohere	Command, Embed	Free trial key	A trial key with a usage budget for text generation, embeddings, and reranking.
Cerebras	Llama, Qwen	Free fast inference	Very high token rates on a small set of open models, free while in preview.

verify current terms with the provider before relying on a free tier in production.

Using one gateway across many free keys

The natural next step after collecting a few free keys is to stop calling each provider by its own URL. Because the keys all speak the same protocol, you can point them at a single gateway and drive them like one API. That is the job of Uprouter Connect: it takes your OpenAI- and Claude-compatible calls, routes them to whichever provider you name, and gives you one base URL and one auth scheme in exchange.

The payoff is threefold. Failover: when a free tier rate-limits you mid-request, the gateway can try the next provider on an alias instead of returning an error. Metering: every call is logged with tokens in, tokens out, latency, and compute cost, so you can see exactly how hard each free key is working. And caps: you can set a daily compute ceiling so a runaway loop cannot drain a shared budget before you notice. For anyone managing more than one free AI API key, that single point of control is usually worth the hop.

Frequently asked questions

What is a free AI API key?

A free AI API key is a credential that lets your code call a large-language-model or AI service without paying, usually within a free tier or a set of free models. You sign up with an email, the provider issues a key, and you send it with each request (typically as an Authorization header) to hit an endpoint such as /chat/completions. "Free" almost always means "free up to a limit" — a monthly credit allowance, per-minute and per-day rate caps, or a subset of free models — not unlimited usage forever.

How do I get a free AI API key in 2026?

Pick a provider that offers a free tier (Google AI Studio, Groq, Mistral, OpenRouter, Hugging Face, Cohere, Cerebras are common starting points), create an account, open the API-keys console in the dashboard, and generate a key. Copy it into your client or into a gateway. Most free keys require no credit card, though some providers ask for one to prevent abuse and refund nothing until you top up.

Are free AI API keys really free, or is there a catch?

They are free to use within the stated limits, and the catch is the limit — not a hidden fee. Typical constraints: a monthly or one-time credit budget, rate limits (requests per minute, tokens per day), a restricted set of models, and data-handling rules that differ from paid plans. The important catches to read before you rely on a free key are (1) whether free-tier data may be used for training, (2) what happens to your key when the trial budget is exhausted, and (3) whether the free tier is guaranteed or best-effort.

What is the difference between a free key, free credits, and a free tier?

A free key is the credential itself. Free credits are a dollar amount of usage the provider grants so you can run paid models at no cost until the budget runs out. A free tier is an ongoing, rate-limited free plan you can keep using. A provider may give you all three at once: a free key, a one-time credit grant, and a persistent free tier for cheaper models. Knowing which of the three you are using tells you what happens the moment the number hits zero.

Which providers have the most useful free AI API keys?

For a first key, Google AI Studio (Gemini) and Groq are the friendliest: no card for standard models and fast responses. For breadth, OpenRouter gives you one key across hundreds of models with explicit :free variants. For open-weight models at speed, Cerebras and Hugging Face are strong. The right choice depends on whether you value raw speed, model variety, or a large credit budget — the directory on this page ranks all of these by free-credit value, risk, and live status so you can compare on facts.

Is it safe to use a free AI API key for a production app?

Use a free key for prototypes, demos, and light internal tooling, but treat it as best-effort: free tiers change limits, can be throttled, and usually sit behind paid plans for production SLAs and higher throughput. Before you ship something user-facing, read the provider’s terms on data retention and training use, confirm your rate limits cover real traffic, and have a paid or gateway-based fallback. If you are juggling several free keys, route them through a single gateway so you can switch providers and meter usage in one place.

What is Uprouter Connect and how does it help with free keys?

UPROUTER CONNECT is an OpenAI- and Claude-compatible gateway. You bring your keys (the free ones from the directory, your paid ones, or a mix), and every request goes through one URL with one auth scheme. That means failover across providers when a free tier rate-limits you, per-request compute metering so you can see exactly what each call costs, and daily spend caps. The directory above maps which providers work through Connect, their free-credit values, and their risk profile, so you can start with the best free key and graduate to paid without rewriting your integration.

Start with a free key, stay on one gateway

Claim welcome compute, add the free keys from this page, and make a real gateway call in under a minute. Every provider in the index above is marked for which ones route through Connect, so you can start free and scale to paid without changing a line of application code.

Get your key Browse free tiers

Informational only — not an endorsement. Verify pricing with the provider. ToS compliance is your responsibility.

// from_the_blog

Guides on AI API routers, free tiers, pricing and reliability — written by the Uprouter editorial team, data-true and linked to the live directory.

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Use them all with one API key.

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$ free AI API key — a practical guide

What is a free AI API key?

How to get a free AI API key in 2026

Free key vs. free credits vs. free tier

Safety and terms: what “free” actually means

Data and training

Durability

Responsible use

The most useful free AI API keys right now

Using one gateway across many free keys

Frequently asked questions

What is a free AI API key?

How do I get a free AI API key in 2026?

Are free AI API keys really free, or is there a catch?

What is the difference between a free key, free credits, and a free tier?

Which providers have the most useful free AI API keys?

Is it safe to use a free AI API key for a production app?

What is Uprouter Connect and how does it help with free keys?

Start with a free key, stay on one gateway

How Uprouter Verifies Data: Our Methodology, in Plain Language

The Real Risks of Using Third-Party AI API Routers: Data & Privacy

How We Check AI API Provider Reliability (and What "Up" Really Means)

Find the best AI API routers.Use them all with one API key.

Every entry answers to the community

Anyone can edit this index

$ free AI API key — a practical guide

What is a free AI API key?

How to get a free AI API key in 2026

Free key vs. free credits vs. free tier

Safety and terms: what “free” actually means

Data and training

Durability

Responsible use

The most useful free AI API keys right now

Using one gateway across many free keys

Frequently asked questions

What is a free AI API key?

How do I get a free AI API key in 2026?

Are free AI API keys really free, or is there a catch?

What is the difference between a free key, free credits, and a free tier?

Which providers have the most useful free AI API keys?

Is it safe to use a free AI API key for a production app?

What is Uprouter Connect and how does it help with free keys?

Start with a free key, stay on one gateway

How Uprouter Verifies Data: Our Methodology, in Plain Language

The Real Risks of Using Third-Party AI API Routers: Data & Privacy

How We Check AI API Provider Reliability (and What "Up" Really Means)

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Find the best AI API routers.
Use them all with one API key.