Pixela vs PostNord

Pixela is a single-developer, open-source habit- and effort-tracking service: every action goes through its REST API, turning daily counts, weight logs, or commit streaks into a GitHub-contribution-style graph. Callers register with a self-chosen token via `/v1/users`, then post daily values that render back as an embeddable SVG graph or badge — no dashboard beyond the API itself. Nearly every feature is free; a handful of extras (logo placement, priority support) are reserved for Patreon backers.

PostNord's developer portal exposes REST APIs for shipment tracking, service-point lookup, pickup booking, and postal-code surcharge data across its Swedish and Danish delivery network. Every endpoint requires an x-bap-key API key issued through the portal's self-serve signup, and responses carry CORS headers for direct browser calls. A Free plan covers a meaningful daily quota per method — 500,000 tracking calls a day, for one — with a metered Customer plan billing per call once volume climbs past those limits.