Are these free APIs really free?

They all have a genuinely free way to call the API, but the terms differ: some are free indefinitely at a low rate limit, some give one-off signup credits, and some are promotions that expire. Always confirm the current terms on the provider's own pricing page before relying on one.

Why do quotas and rate limits keep changing?

Free tiers are promotional, so providers adjust or withdraw them without notice. We re-check entries periodically and record the last update date on each card. If you spot something outdated, treat the official pricing page as the source of truth.

Do I need a credit card or VPN?

It varies by provider. Some require a phone number or a linked payment method even to use the free tier; others need a VPN depending on where you are. Check the provider's signup requirements before committing.

How are the star ratings decided?

Ratings are an editorial summary, not a benchmark. Quota reflects how much you get, rate limits reflect how strict the throttling is (more stars means looser), and stability reflects how reliably the endpoint responds in practice. They are meant for quick scanning — read the description for specifics.

Free LLM APIs

Providers that let you call a large language model without paying. Some are free forever, some hand out signup credits, and some are limited-time offers — rated 0-5 on quota, rate limits and stability to help you pick quickly.

Free tiers usually come with strict limits. They are best suited to development, prototyping and testing — we do not recommend relying on them in production.

Quota, rate limit and stability ratings are subjective assessments by the site editors based on hands-on testing. They are indicative only — always check the provider's own documentation for the actual terms.

8 active entries

Free type

All Always free Limited-time Signup credit

Region

All United States

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Frequently asked questions

Are these free APIs really free?: They all have a genuinely free way to call the API, but the terms differ: some are free indefinitely at a low rate limit, some give one-off signup credits, and some are promotions that expire. Always confirm the current terms on the provider's own pricing page before relying on one.
Why do quotas and rate limits keep changing?: Free tiers are promotional, so providers adjust or withdraw them without notice. We re-check entries periodically and record the last update date on each card. If you spot something outdated, treat the official pricing page as the source of truth.
Do I need a credit card or VPN?: It varies by provider. Some require a phone number or a linked payment method even to use the free tier; others need a VPN depending on where you are. Check the provider's signup requirements before committing.
How are the star ratings decided?: Ratings are an editorial summary, not a benchmark. Quota reflects how much you get, rate limits reflect how strict the throttling is (more stars means looser), and stability reflects how reliably the endpoint responds in practice. They are meant for quick scanning — read the description for specifics.

About this directory

We collect publicly documented free tiers, signup credits and limited-time offers from LLM providers, then summarise what you get and how usable it is. It is manually curated and updated as offers change.

Unofficial directory, not affiliated with any provider listed. Free offers change frequently and may be region-restricted. Always verify the current terms on the provider's own website — the link on each card is the authoritative source.