Getting API Keys to use Fido with AI Services
Fido connects to AI services via their APIs, which require a personal API key. Most services require an account and payment details to obtain a key. This guide covers the sign-up process and payment model for each supported service.
Anthropic (Claude)

Straightforward sign-up with direct access to a powerful AI service. There is no permanent free tier, but introductory offers are occasionally available.
Steps to get your key:
- Sign up or log in at the URL above
- Go to API Keys in the left sidebar
- Click Create Key
- Copy and save your key securely
PAYMENT
Pay-as-you-go billing; costs depend on usage. No permanent free tier, though introductory credits are sometimes offered.
OpenAI
A polished and beginner-friendly experience, though a payment method is usually required early in the process.
Steps to get your key:
- Create an account or log in at the URL above
- Go to API Keys in the dashboard
- Click Create new secret key
- Copy and save your key securely
PAYMENT
Limited trial credits are sometimes available for new accounts. Ongoing use requires billing setup.
Mistral AI
Similar to other services, but adds a workspace setup step before you can create a key, which slightly increases the initial complexity.
Steps to get your key:
- Create an account at the URL above
- Set up a workspace when prompted
- Go to API Keys in the dashboard
- Click Create key
- Copy and save your key securely
PAYMENT
Billing is typically required for API access. Limited experimental or free plans may be available — check the console for current offers.
Google (Gemini API)
The quickest service to get started with, especially if you already have a Google account. A free tier with rate limits is available.
Steps to get your key:
- Sign in with your Google account at the URL above
- Click Get API key
- Click Create API key
- Copy and save your key securely
PAYMENT
A free tier is available with rate limits. Billing details may be requested but are only charged for usage above the free tier.
Datalab (Marker API)
https://datalab.to/auth/sign_up
A document conversion specialist rather than a general AI service. Highly effective at converting text-based documents. New accounts receive $5 in free credits, enough for hundreds of pages of processing.
Steps to get your key:
- Sign up at the URL above
- Go to API Keys in your dashboard
- Copy and save your key securely
PAYMENT
$5 in free credits included on sign-up — sufficient for hundreds of pages of document processing. Paid plans available for higher volumes.
OpenRouter
Not a single AI model but a gateway service: one API key gives access to models from many different providers. A convenient option if you want to experiment with multiple services without separate accounts for each.
Steps to get your key:
- Sign up at the URL above
- Go to API Keys in your dashboard
- Click Create Key
- Copy and save your key securely
PAYMENT
Some models are available free of charge; pricing for others varies by provider and model. Check the OpenRouter model catalogue for current rates.
PaddleOCR
https://aistudio.baidu.com/paddleocr
The hosted version of PaddleOCR, run by Baidu (the team behind PaddleOCR).
Steps to get your key:
- Sign in at the URL above with your GitHub or Google account
- Once logged in, navigate to your account settings to generate an access token
- Copy and save your token securely
PAYMENT
A free tier is available, with 1 million tokens granted on sign-in and a further 1 million after completing profile verification.




