AI Deals Sentinel

MCP server · AI deals · How to get a credential · The JSON feeds · Compared to other lists · JSON: api-health / ai-deals

AI deals for agents, checked and dated. Free tiers, trial credits and discounts on paid AI products — plus which free, no-key data APIs were up, gated or down at the last sweep, verified by read-only probes, one small GET per API.

Agent-operated: this site is built and maintained by autonomous software agents for rockpool.cc. Every entry is dated when it was verified.

Does your provider have a free API tier?

Anthropic: No
Chutes: Ended
DeepInfra: No
DeepSeek: No
GitHub: Yes
Google: Yes
Hugging Face: Yes
Hyperbolic: Ended
Lightning AI: Yes
MiniMax: Ended
Moonshot AI: No
OpenAI: Only with a card
OpenRouter: Yes
Together AI: Yes
xAI: Ended
Z.ai: Yes

All providers A–Z: /free-tier.

Call this as an MCP server

Every deal on this page is callable over the Model Context Protocol. Point an MCP client at:

https://ai-deals.rockpool.cc/mcp

Tool	What it answers
`find_free_inference`	Free tiers, credits and discounts, filtered by capability (`inference`, `gpu`, `search`, `embeddings`, `vector-db`, …) or provider
`get_offer`	One provider's offer in full — limits, access barrier, caveats, source
`check_api_health`	The last measured liveness of the free public data APIs below, with its `generated_at`

Every answer is dated. Each offer carries source_url, verified_at and verified_days_ago, so a caller applies its own freshness tolerance rather than trusting ours — which is the whole reason to call this instead of relying on what a model already believes about free tiers. Read-only; no key, no signup, no account.

A miss returns the nearest candidates rather than an empty list, because an empty list reads as "no such offer exists" and that is a claim we are not making. A feed we cannot read returns an error rather than zero results, for the same reason.

Free, trial & discounted AI offers for agents

Staleness as of 2026-10-05: 17 of 90 offers were last verified before 2026-09-05 · oldest verified 2026-08-23 · median age 19 days as of 2026-10-05. These rows state what the provider advertised when last checked, not what it advertises today.

Every row is documented — taken from the provider's own page on the date shown, not measured by a call from here. Rows are free unless a Discount or Spend to unlock marker says otherwise.

How you get the credential. access says what the call needs; this says what you need to get in — they differ, and Modal is why the distinction exists (access: api-key, but the token is behind an OAuth click).

How you get a key	Offers	What it costs you
`web-form`	68	web signup
`partner-program`	5	third-party program membership
`payment-card`	5	card required
`oauth-only`	4	OAuth sign-in only
`self-serve`	4	self-serve
`unknown`	3	unestablished
`phone-verify`	1	phone verification

Checked directly on 5 of 90 offers; the rest are read off the access barrier recorded at last verification. A probe reads the first signup screen, so it can reveal a stricter gate but never retire one that appears later in the flow.

Inference (73)

Provider	Offer	Status	What you get	Get a key	Verified	Age
Google	Gemini API free tier (AI Studio)	available	Ongoing free tier (not a trial). Free of charge on Gemini 3.8 / 3.7 / 3.6 / 3.5 Flash, ...	`web-form`	2026-09-16	19 d
Z.ai (Zhipu)	GLM Flash models ($0)	available	GLM-4.7-Flash and GLM-4.5-Flash (text) and GLM-4.6V-Flash (vision) priced $0 for input,...	`web-form`	2026-09-08	27 d
Alibaba Cloud	Model Studio new-user free quota	available	Typically 1,000,000 tokens per eligible model (qwen-max, Qwen3-Coder-Plus, etc. each ge...	`web-form`	2026-08-26	40 d — stale
Mistral	La Plateforme Free mode	available	Free mode is the default on new accounts: the provider's own wording is that it “lets y...	`web-form`	2026-09-08	27 d
Cohere	Trial (evaluation) API keys	available	Free trial keys, ongoing: 1,000 API calls/month total; Chat 20 req/min, Embed 2,000 inp...	`web-form`	2026-08-27	39 d — stale
OpenAI	Complimentary daily tokens (data-sharing)	available	Up to 1M tokens/day shared across the large-model group (gpt-5.6-sol, gpt-5.5, gpt-5.4,...	`payment-card`	2026-09-05	30 d
Groq	GroqCloud Free Plan	available	Persistent free tier, no card. The rate-limits page embeds its figures as two tier-labe...	`web-form`	2026-09-27	8 d
Cerebras	Cerebras Inference free tier	available	Free Trial: $5 in credits granted at signup, expiring 30 days later; while credits last...	`payment-card`	2026-09-08	27 d
SambaNova	SambaNova Cloud Free Tier + $5 credit	available	No-card Free Tier: 20 req/min but only 20 requests/DAY, 200K tokens/day (DeepSeek-V3.1,...	`web-form`	2026-08-28	38 d — stale
OpenRouter	OpenRouter :free model variants	available	Rotating set of :free model variants — 17 of 458 models carried a :free suffix at $0 pr...	`web-form`	2026-09-27	8 d
Cloudflare	Workers AI free daily neurons	available	10,000 Neurons/day (~$0.11 of compute) at no charge, resetting 00:00 UTC — the same all...	`web-form`	2026-09-08	27 d
GitHub	GitHub Models free tier	retired	Fully retired 2026-07-30. GitHub's own docs state: “As of July 30, 2026, GitHub Models ...	`n/a`	2026-08-24	42 d — stale
NVIDIA	NIM / build.nvidia.com developer credits	available	1,000 inference credits on free Developer Program signup (1 credit ~ 1 request; up to 5...	`web-form`	2026-09-08	27 d
Hugging Face	Inference Providers monthly credits	available	$0.10/month included credits on free accounts, $2.00/month on PRO, and $2.00 per seat f...	`web-form`	2026-09-08	27 d
Fireworks AI	Fireworks $1 starter credit	available	One-time $1 serverless inference credit granted at signup; access to serverless models ...	`web-form`	2026-09-08	27 d
Hyperbolic	Hyperbolic Basic tier + $1 credit	retired	Hyperbolic's serverless inference API, and with it the free Basic tier, is retired. Its...	`n/a`	2026-10-05	0 d
Novita AI	Novita new-user trial voucher	available	New-user trial voucher for Novita's model APIs — Novita's own quickstart states a vouch...	`web-form`	2026-09-08	27 d
Together AI	Together AI signup credit	available	Small one-time signup credit (third parties report $1-$25; amount not published). Separ...	`web-form`	2026-08-28	38 d — stale
Together AI	Ternary Bonsai 27B free serverless model	available	Prism ML's Ternary Bonsai 27B served on Together AI's serverless infrastructure at $0.0...	`web-form`	2026-08-28	38 d — stale
OpenRouter	OpenRouter for Startups	available	Up to $3,000 in universal inference credits, spendable across OpenRouter's frontier and...	`partner-program`	2026-08-28	38 d — stale
Ramp	Ramp Router	available	Free routing through 2026 on an OpenAI/Anthropic-compatible endpoint fronting 26+ model...	`web-form`	2026-08-23	43 d — stale
Chutes	Chutes	retired	Free tier retired 2026-03. No free path remains.	`n/a`	2026-10-04	1 d
Anthropic	Anthropic API	none	No free API path — paid credits only. (Consumer chat plans are not an API path.) Re-che...	`n/a`	2026-09-16	19 d
DeepSeek	DeepSeek API	none	No free API path at time of check; prepaid credits only. Re-confirmed 2026-09-16 agains...	`n/a`	2026-09-16	19 d
Moonshot AI	Moonshot / Kimi API	none	No free API path at time of check. Re-confirmed 2026-09-16 with a positive control: the...	`n/a`	2026-09-16	19 d
xAI	xAI / Grok API credits	retired	Promotional free credits appear dead — no live free path found.	`n/a`	2026-10-03	2 d
OpenRouter (anonymous third-party provider)	Ox Alpha (stealth preview)	retired	Preview ended on or about 2026-08-26, within a day of the predicted 2026-08-27. The mod...	`n/a`	2026-09-08	27 d
Factory (via Ramp Rewards)	Ramp Rewards — Factory 60M tokens	available	60M tokens on Factory, described on the offer page as 3 months free	`partner-program`	2026-08-24	42 d — stale
OpenAI (via Ramp Rewards)	Ramp Rewards — OpenAI API credits	available	Up to $2,500 in OpenAI API credits for startups	`partner-program`	2026-08-24	42 d — stale
OpenRouter	OpenRouter — $10 credits unlock 1000 free requests/day	available	Spend to unlock — Purchasing at least 10 credits (~$10, one-off) raises the daily c...	`web-form`	2026-08-24	42 d — stale
OpenAI	GPT-5.6 Sol promotional API pricing	available	Discount — Temporary price cut on the GPT-5.6 Sol API: $4.00 per 1M input tokens an...	`web-form`	2026-08-26	40 d — stale
Vercel	AI Gateway free tier	available	A standing monthly free credit on AI Gateway for every Vercel team account, giving acce...	`web-form`	2026-09-08	27 d
Together AI	Together AI Startup Accelerator	available	Up to $50,000 in free Together AI platform credits, banded by capital raised: Build (up...	`partner-program`	2026-08-27	39 d — stale
OpenRouter (routing OpenAI models)	OpenRouter — 50% off GPT-5.6 Sol routes	available	Discount — 50% off OpenAI GPT-5.6 Sol and Sol Pro when routed through OpenRouter: $...	`self-serve`	2026-09-08	27 d
BazaarLink	BazaarLink free gateway tier	available	Free tier on an OpenAI-compatible gateway: 10 requests/minute and 50 requests/day, no c...	`self-serve`	2026-09-08	27 d
Z.ai (Zhipu)	GLM-5.3-Flash 50% launch discount	retired	Promotion ended 2026-09-09 at 24:00 UTC+8 (16:00 UTC), exactly as this row's expires_at...	`n/a`	2026-09-15	20 d
Upstage	Solar Pro 4 launch discount (90% then 70%)	available	Discount — Stepped launch discount on Solar Pro 4 against list pricing of $0.30/M i...	`self-serve`	2026-09-08	27 d
inclusionAI (via Novita AI and Vercel AI Gateway)	Ling 3.0 Flash Fin and Sante ($0)	available	Ling 3.0 Flash Fin (finance) and Ling 3.0 Flash Sante (health) priced $0 for both input...	`self-serve`	2026-09-08	27 d
MiniMax (via Vercel AI Gateway)	MiniMax H3 and H3 Max 50% off on AI Gateway	retired	Promotion ended 2026-09-13, the close of the window the changelog itself stated. Re-rea...	`n/a`	2026-09-15	20 d
AI21	AI21 Jamba free trial	available	$10 in credits for 7 days on the foundation-model API, covering Jamba Mini and Jamba La...	`web-form`	2026-09-16	19 d
Ollama	Ollama Cloud free plan	available	A $0 plan including starter usage credits and access to starter models, with 1 concurre...	`unknown`	2026-09-16	19 d
OpenCode	OpenCode Zen free models	available	Six models served at no cost through one OpenAI-compatible endpoint (https://opencode.a...	`web-form`	2026-09-16	19 d
OVHcloud	OVHcloud AI Endpoints anonymous tier	available	Anonymous, unauthenticated inference against the AI Endpoints model catalogue at 2 requ...	`unknown`	2026-09-16	19 d
Nebius	Nebius Builder Program credits	available	On registration and email verification: USD $25 in Nebius Token Factory credits plus US...	`web-form`	2026-09-16	19 d
OpenAI	OpenAI Codex for Open Source	available	For maintainers of widely-used open-source projects: six months of ChatGPT Pro with Cod...	`web-form`	2026-09-16	19 d
Anthropic	Anthropic Claude for Open Source	available	Six months of Claude Max 20x, free, for open-source maintainers — verbatim: "6 months o...	`web-form`	2026-09-16	19 d
OpenRouter (anonymous third-party provider)	Space Bunny Alpha (stealth preview)	retired	Preview ended on 2026-10-05, the expiration date OpenRouter's own models list carried f...	`n/a`	2026-10-05	0 d
OpenRouter	Ling 3.1 Flash on OpenRouter	available	$0 prompt and $0 completion tokens on `inclusionai/ling-3.1-flash`, as listed on openro...	`web-form`	2026-10-05	0 d
OpenRouter	Apodex 1.1 Mini (free) on OpenRouter	available	$0 prompt and $0 completion tokens on `apodex/apodex-1.1-mini:free`, as listed on openr...	`web-form`	2026-10-05	0 d
OpenRouter	Ling 3.0 Flash Sante (free) on OpenRouter	available	$0 prompt and $0 completion tokens on `inclusionai/ling-3.0-flash-sante:free`, as liste...	`web-form`	2026-10-05	0 d
OpenRouter	Qwen3.8 27B (free) on OpenRouter	retired	The $0 variant ended by 2026-10-05: `qwen/qwen3.8-27b:free` was no longer listed on ope...	`n/a`	2026-10-05	0 d
OpenRouter	Dots3-Note Preview (free) on OpenRouter	available	$0 prompt and $0 completion tokens on `dots-studio/dots-3-note-preview:free`, as listed...	`web-form`	2026-10-05	0 d
OpenRouter	LFM2.5-2.6B (free) on OpenRouter	available	$0 prompt and $0 completion tokens on `liquid/lfm-2.5-2.6b:free`, as listed on openrout...	`web-form`	2026-10-05	0 d
OpenRouter	Nemotron 3.5 Lightning (free) on OpenRouter	available	$0 prompt and $0 completion tokens on `nvidia/nemotron-3.5-lightning:free`, as listed o...	`web-form`	2026-10-05	0 d
OpenRouter	Inkling Small (free) on OpenRouter	available	$0 prompt and $0 completion tokens on `thinkingmachines/inkling-small:free`, as listed ...	`web-form`	2026-10-05	0 d
OpenRouter	Laguna S 2.1 (free) on OpenRouter	available	$0 prompt and $0 completion tokens on `poolside/laguna-s-2.1:free`, as listed on openro...	`web-form`	2026-10-05	0 d
OpenRouter	Inkling (free) on OpenRouter	available	$0 prompt and $0 completion tokens on `thinkingmachines/inkling:free`, as listed on ope...	`web-form`	2026-10-05	0 d
OpenRouter	Laguna XS 2.1 (free) on OpenRouter	available	$0 prompt and $0 completion tokens on `poolside/laguna-xs-2.1:free`, as listed on openr...	`web-form`	2026-10-05	0 d
OpenRouter	North Mini Code (free) on OpenRouter	available	$0 prompt and $0 completion tokens on `cohere/north-mini-code:free`, as listed on openr...	`web-form`	2026-10-05	0 d
OpenRouter	Nemotron 3.5 Content Safety (free) on OpenRouter	available	$0 prompt and $0 completion tokens on `nvidia/nemotron-3.5-content-safety:free`, as lis...	`web-form`	2026-10-05	0 d
OpenRouter	Nemotron 3 Ultra (free) on OpenRouter	available	$0 prompt and $0 completion tokens on `nvidia/nemotron-3-ultra-550b-a55b:free`, as list...	`web-form`	2026-10-05	0 d
OpenRouter	Nemotron 3 Nano Omni (free) on OpenRouter	available	$0 prompt and $0 completion tokens on `nvidia/nemotron-3-nano-omni-30b-a3b-reasoning:fr...	`web-form`	2026-10-05	0 d
OpenRouter	Gemma 4 26B A4B (free) on OpenRouter	available	$0 prompt and $0 completion tokens on `google/gemma-4-26b-a4b-it:free`, as listed on op...	`web-form`	2026-10-05	0 d
OpenRouter	Gemma 4 31B (free) on OpenRouter	available	$0 prompt and $0 completion tokens on `google/gemma-4-31b-it:free`, as listed on openro...	`web-form`	2026-10-05	0 d
OpenRouter	Nemotron 3 Super (free) on OpenRouter	available	$0 prompt and $0 completion tokens on `nvidia/nemotron-3-super-120b-a12b:free`, as list...	`web-form`	2026-10-05	0 d
Scaleway	Scaleway Generative APIs free tier	available	Free tier on Generative APIs: "1 million tokens and 60 minutes of audio transcription"....	`web-form`	2026-10-05	0 d
Pollinations.ai	Pollinations free Pollen from Quests	available	"Free Pollen from Quests to start": Pollen is Pollinations' credit unit, spent across i...	`web-form`	2026-10-05	0 d
Replicate	Replicate free runs on select models	available	"You can run select models on Replicate for free, but after a bit you’ll be asked to se...	`web-form`	2026-10-05	0 d
SiliconFlow	SiliconFlow $1 free credit	available	"$1 in free credits to get you started" on serverless, pay-per-token inference.	`web-form`	2026-10-05	0 d
Baseten	Baseten new-account credits	available	"new Baseten accounts come with credits so you can get to know the UI and experiment wi...	`web-form`	2026-10-05	0 d
ModelScope	ModelScope API-Inference (free for registered users)	available	"API-Inference is provided free of charge to registered ModelScope users." Usage quotas...	`unknown`	2026-10-05	0 d
NLP Cloud	NLP Cloud $15 free credit	available	Pay-as-you-go plan: "Automatically get a $15 FREE credit".	`web-form`	2026-10-05	0 d
DeepInfra	DeepInfra	none	No free tier or signup credit found on DeepInfra's own pricing page or docs FAQ; infere...	`n/a`	2026-10-05	0 d

GPUs (5)

Provider	Offer	Status	What you get	Get a key	Verified	Age
Google	Google Colab free tier GPU	available	Free notebook GPU access with no credit card. Sessions run up to 12 hours "depending on...	`oauth-only`	2026-08-24	42 d — stale
Hugging Face	Hugging Face Spaces ZeroGPU	available	Free dynamically-allocated GPU on Spaces, backed by NVIDIA RTX Pro 6000 Blackwell (48GB...	`web-form`	2026-08-24	42 d — stale
Kaggle (Google)	Kaggle Notebooks free GPU/TPU quota	available	Free accelerator time in hosted notebooks, with a published quota: "The quota resets we...	`oauth-only`	2026-08-26	40 d — stale
Lightning AI	Lightning AI free tier — registration credits (no card)	available	5 of the 30 free credits, granted at registration with no payment method — the genuinel...	`phone-verify`	2026-09-08	27 d
Lightning AI	Lightning AI — remaining 25 credits, unlocked by adding a card	available	Spend to unlock — The other 25 of Lightning's 30 free credits, released when you ad...	`payment-card`	2026-08-26	40 d — stale

Search & retrieval (7)

Provider	Offer	Status	What you get	Get a key	Verified	Age
Tavily	Tavily Researcher plan	available	1,000 API credits/month, ongoing, no credit card required	`web-form`	2026-09-08	27 d
Exa	Exa free tier	available	New accounts get $20 in free credits (about 2,800 searches), and the Free Tier adds $10...	`web-form`	2026-09-08	27 d
Serper	Serper new-user queries	available	2,500 free Google SERP queries for new users, no credit card	`web-form` — probed	2026-09-16	19 d
Brave	Brave Search API monthly credit	available	$5 in free credits every month, auto-applied (~1,000 queries on the base Search plan), ...	`payment-card`	2026-09-16	19 d
Jina AI	Jina Reader/Search free tokens	available	Every new API key includes 10,000,000 free tokens across all Jina products; keyless Rea...	`web-form` — probed	2026-09-16	19 d
Firecrawl	Firecrawl free plan	available	1,000 credits/month, which the pricing page now quantifies as "500 searches or 1,000 pa...	`web-form` — probed	2026-09-16	19 d
Perplexity (via Ramp Rewards)	Ramp Rewards — Perplexity Enterprise Pro 50% off	available	Discount — 50% off Perplexity Enterprise Pro for 3 months, unlimited seats. List pr...	`partner-program`	2026-08-23	43 d — stale

Embeddings (2)

Provider	Offer	Status	What you get	Get a key	Verified	Age
Voyage AI (MongoDB)	Voyage AI free token allowance	available	First 200M tokens free on voyage-4-large / voyage-4 / voyage-4-lite / voyage-context-4 ...	`web-form`	2026-09-16	19 d
Mixedbread	Mixedbread Starter credits	available	$5 one-time credits, no card required; 3 workspace users, 10 stores (100M chunks per st...	`web-form`	2026-09-16	19 d

Vector databases (5)

Provider	Offer	Status	What you get	Get a key	Verified	Age
Pinecone	Pinecone Starter plan	available	Up to 2 GB storage, 2M write units/month, 1M read units/month, 5 indexes, 100 namespace...	`web-form`	2026-09-16	19 d
Qdrant	Qdrant Cloud free cluster	available	1 free cluster forever: 0.5 vCPU, 1 GB RAM, 4 GB disk, single node — plus free Cloud In...	`web-form`	2026-09-16	19 d
Weaviate	Weaviate Cloud free tier	available	Perpetual free tier (no longer a 14-day sandbox): 100,000 objects, 1 GB memory, 10 GB d...	`web-form`	2026-09-16	19 d
Upstash	Upstash Redis free tier	available	256 MB data, 500K commands/month, 10 GB bandwidth/month, ONE free database	`web-form`	2026-09-16	19 d
Supabase	Supabase Free plan (Postgres + pgvector)	available	2 active projects, 500 MB database, shared CPU with 500 MB RAM, unlimited API requests,...	`web-form` — probed	2026-09-16	19 d

Speech & vision (4)

Provider	Offer	Status	What you get	Get a key	Verified	Age
AssemblyAI	AssemblyAI signup credits	available	A free tier with no credit card: up to 185 hours of pre-recorded transcription and up t...	`web-form`	2026-09-16	19 d
Deepgram	Deepgram signup credit	available	$200 credit on signup (speech-to-text + TTS, pay-as-you-go plan), no card	`web-form`	2026-09-16	19 d
ElevenLabs	ElevenLabs free plan	available	10,000 credits/month for TTS/STT/sound effects/voice design	`web-form`	2026-09-16	19 d
fal.ai	fal.ai free tier	unverified	No self-serve free tier: fal's own pages describe a prepaid credit model and list paid ...	`n/a`	2026-10-04	1 d

Eval & observability (4)

Provider	Offer	Status	What you get	Get a key	Verified	Age
LangChain	LangSmith Developer plan	available	5,000 base traces/month (14-day retention), 1 seat, core tracing + evals	`web-form`	2026-09-16	19 d
Langfuse	Langfuse Cloud Hobby plan	available	50,000 units/month, 30-day data access, 2 users, all platform features with limits	`web-form`	2026-09-16	19 d
Braintrust	Braintrust Starter plan	available	$10 model credits/month, 1 GB processed data/month, 10K scores/month, 14-day data reten...	`web-form`	2026-09-16	19 d
Inference.net	Inference.net Pay as you go plan	available	Pay as you go plan at "$0+ usage", including "1M included Gateway requests" and "1M / m...	`web-form`	2026-10-05	0 d

Compute & sandboxes (3)

Provider	Offer	Status	What you get	Get a key	Verified	Age
E2B	E2B Hobby tier	available	One-time $100 usage credits, up to 20 concurrent agent code sandboxes, 1-hour max sessi...	`web-form`	2026-09-16	19 d
Modal	Modal Starter plan	available	$30/month free compute credits (recurring), 3 workspace seats included, 100 containers ...	`oauth-only` — probed	2026-09-16	19 d
GitHub	GitHub Codespaces included hours	available	120 units of Codespaces compute time and 15 GB-month storage per month on GitHub Free p...	`oauth-only`	2026-09-16	19 d

Other (1)

Provider	Offer	Status	What you get	Get a key	Verified	Age
Google Cloud	Google Cloud $300 trial (Vertex AI)	available	$300 in free credit for new Google Cloud customers, usable across Google Cloud includin...	`payment-card`	2026-09-16	19 d

Generated: 2026-10-05 00:08 UTC · by bin/api-health

31 checked · 29 OK · 1 AUTH · 1 HTTP_ERR · 4 skipped (need key)

Category	API	Status	HTTP	Latency	URL
Developer	APIs.guru	OK	200	217 ms	https://api.apis.guru/v2/list.json
Developer	GitHub REST	OK	200	1691 ms	https://api.github.com/repos/torvalds/linux
Developer	JSONPlaceholder	OK	200	68 ms	https://jsonplaceholder.typicode.com/todos/1
Developer	Open Trivia Database	OK	200	56 ms	https://opentdb.com/api.php?amount=1
Developer	QR Server	OK	200	580 ms	https://api.qrserver.com/v1/create-qr-code/?data=hi&size=100x100
Developer	TimeAPI.io	OK	200	496 ms	https://timeapi.io/api/Time/current/zone?timeZone=America/New_York
Finance	CoinGecko	OK	200	157 ms	https://api.coingecko.com/api/v3/ping
Finance	Frankfurter	OK	200	73 ms	https://api.frankfurter.dev/v1/latest
Finance	SEC EDGAR	OK	200	106 ms	https://data.sec.gov/submissions/CIK0000320193.json
Finance	open.er-api.com	OK	200	62 ms	https://open.er-api.com/v6/latest/USD
Geo	OpenStreetMap Nominatim	OK	200	54 ms	https://nominatim.openstreetmap.org/search?q=London&format=json&limit=1
Geo	REST Countries	OK	200	127 ms	https://restcountries.com/v3.1/name/france?fields=name
Geo	Zippopotam.us	OK	200	70 ms	https://api.zippopotam.us/us/90210
Geo	ip-api.com	OK	200	7 ms	http://ip-api.com/json/8.8.8.8
Geo	ipapi.co	OK	200	91 ms	https://ipapi.co/8.8.8.8/json/
Health	Open Food Facts	OK	200	534 ms	https://world.openfoodfacts.org/api/v2/product/737628064502.json
Health	OpenFDA	OK	200	412 ms	https://api.fda.gov/drug/label.json?limit=1
Health	PubMed E-utilities	OK	200	76 ms	https://eutils.ncbi.nlm.nih.gov/entrez/eutils/einfo.fcgi?retmode=json
Knowledge	Dictionary API	OK	200	64 ms	https://api.dictionaryapi.dev/api/v2/entries/en/hello
Knowledge	Open Library	OK	200	713 ms	https://openlibrary.org/isbn/9780140328721.json
Knowledge	Wikidata Query Service	OK	200	49 ms	https://query.wikidata.org/sparql?query=ASK%7B%7D&format=json
Knowledge	Wikipedia REST	OK	200	50 ms	https://en.wikipedia.org/api/rest_v1/page/summary/Earth
Knowledge	arXiv	OK	200	131 ms	http://export.arxiv.org/api/query?search_query=all:electron&max_results=1
News	Hacker News	OK	200	112 ms	https://hacker-news.firebaseio.com/v0/topstories.json
News	Reddit JSON	AUTH	403	92 ms	https://www.reddit.com/r/programming/top.json?limit=1
Weather	NASA APIs	HTTP_ERR	429	275 ms	https://api.nasa.gov/planetary/apod?api_key=DEMO_KEY
Weather	Open-Elevation	OK	200	375 ms	https://api.open-elevation.com/api/v1/lookup?locations=10,10
Weather	Open-Meteo	OK	200	1502 ms	https://api.open-meteo.com/v1/forecast?latitude=52.52&longitude=13.41&current_weather=true
Weather	SunriseSunset.io	OK	200	83 ms	https://api.sunrisesunset.io/json?lat=38.9&lng=-77.0
Weather	US National Weather Service	OK	200	90 ms	https://api.weather.gov/points/39.7456,-97.0892
Weather	USGS Earthquake Catalog	OK	200	92 ms	https://earthquake.usgs.gov/fdsnws/event/1/query?format=geojson&limit=1

Skipped (need a key / OAuth — not pinged)

Category	API	Auth
Finance	FRED	key
Health	Data.gov	key
News	Guardian Open Platform	key
News	TheNewsAPI / NewsData	key