[ PayPerQ Alternatives ]
PayPerQ (ppq.ai) lets you pay for each query with Bitcoin, Lightning, Litecoin, or Monero, and you do not need an account. It has no Tor or I2P address, so users who stay on Tor need something else.
SilentAPI vs PayPerQ
| Feature | SilentAPI | PayPerQ |
|---|---|---|
| Type | API and web chat | API and web chat |
| API | Yes. OpenAI, Anthropic, and Gemini request formats | Yes, OpenAI compatible |
| Models | 39 chat models, including GPT, Claude, Gemini, Grok, DeepSeek, Qwen, Kimi, GLM, MiniMax, and Mistral | Text, image, video, and voice models from OpenAI, Anthropic, Google, Mistral, Meta, DeepSeek, and others |
| Other services | Image, video, speech, transcription, music, embeddings, OCR, vision, moderation, and IP and email lookups | Image, video, and voice |
| Signup | Username and password. No email, no phone, no KYC | No signup required. Optional account |
| Payment | Crypto through NowPayments, or a direct Monero deposit. Payments are anonymized, so your wallet can not be tied to your account | Bitcoin, Lightning, Litecoin, Liquid, Monero, and card |
| Monero | Yes | Yes |
| Pricing | Prepaid credits (1 credit = $0.01). Pay per request, no subscription | Pay per use. Optional web app plan |
| Prompt logging | SilentAPI does not keep your prompts or outputs. Providers do not see your IP address, and they can not link a request to your account. Many models use zero data retention routes | No prompt logs. Usage is linked to a random ID. Encrypted hardware (TEE) option for chat |
| Tor and I2P | Yes. Website and API on Tor and I2P | No |
Sources: PayPerQ, PayPerQ privacy policy, PayPerQ TEE models.
Choose SilentAPI if
- You want private AI chat and an API on one account
- You want to pay with Monero or anonymized crypto
- You use Tor or I2P
- You want image, speech, OCR, and lookup APIs on the same balance
Choose PayPerQ if
- You want chat that runs in encrypted hardware (TEE)
- You want to pay for each query with Lightning and no account
Why people look for PayPerQ alternatives
- You want to use the service over Tor or I2P
- You want OCR, vision, moderation, and lookup APIs on the same balance
- You want several API keys with their own budgets and expiry dates
- You want automatic fallback when a model or route fails
The 7 best PayPerQ alternatives
1. SilentAPI
Best for private AI chat and API use with crypto, Monero, Tor, and I2P.
SilentAPI is the most complete private option on this list. One account gives you a private web chat and one API key for 39 chat models, plus image, video, speech, music, OCR, vision, and lookup APIs on the same balance. You sign up with a username only. Crypto payments are anonymized, so your wallet can not be tied to your account, and Monero works through direct deposits. The website, the chat, and the API all run on Tor and I2P. SilentAPI does not keep your prompts or outputs, and the model providers can not see who sent a request. A failed route falls back to the next compatible route.
2. OpenRouter
Best for the largest model catalog with card billing.
One API for hundreds of models. It needs an account and adds a 5.5% fee on card purchases and a 5% fee on crypto. No Monero.
3. NanoGPT
Best for the largest pay per use model list with no account.
Pay per use chat and API with 1,000+ models, no account, crypto and Monero payments, and an official Tor onion API.
4. Venice.ai
Best for a private consumer chat app with a free tier.
Private chat app and API. Chats stay in your browser, and requests are relayed without storage. It takes card, Bitcoin for plans, USDC wallet credits, and VVV staking, but not Monero.
5. Tinfoil
Best for open models in verifiable secure hardware, paid by card.
Private chat and an OpenAI compatible API that run open models in secure enclaves. Email or Google sign in, card only, and higher token prices than SilentAPI on shared models.
6. Duck.ai
Best for free private chat in the browser.
Free private chat by DuckDuckGo. Your IP address is removed before prompts reach the model provider. No public API.
7. Proton Lumo
Best for Proton users who want encrypted chat history.
Private chat by Proton with a no logs policy and zero access encryption. Open source models in European data centers. No public API.
How to switch from PayPerQ to SilentAPI
SilentAPI uses the OpenAI request format, and it also accepts the Anthropic and Gemini formats. In most apps you change two values: the base URL and the API key. Then change the model names to the SilentAPI model IDs from the services page.
Create one key per project, and set a monthly budget and an expiry date on each key. Credits are prepaid, so a key can never spend more than your balance.
When PayPerQ is the better choice
PayPerQ needs no account at all and runs chat in encrypted hardware (TEE). If hardware level privacy for chat matters most to you, it is a strong choice.
How we compared
We compared each service on the points that matter for private AI chat and API use: signup, payment, Monero, logging, Tor and I2P access, and model range. We read each service's own pricing, privacy, terms, and documentation pages on October 6, 2026, and we link those pages under each table.
Found a fact that is out of date? Contact us.
Questions
Is there a PayPerQ alternative on Tor?
Yes. SilentAPI has its website and API on Tor and I2P. NanoGPT also has a Tor onion API.
Do PayPerQ alternatives accept Monero?
SilentAPI accepts Monero through direct deposits. NanoGPT accepts it too.
Can I use the same code with SilentAPI?
Yes. SilentAPI uses the OpenAI request format, so you change the base URL, the key, and the model names.