toolgrep / APIs & backend / GreenCalculus API
Alternatives to GreenCalculus API
GreenCalculus API: Carbon-accounting API: sourced emission factors + audit-traced calculations (PCAF, GHG Protocol), every value traceable to its source. 8 products similar to GreenCalculus API, compared on pricing, free tier, API, MCP server, SDK and open source. 7 of 8 have a free tier, 8 of 8 have an API, 8 of 8 offer an MCP server, 2 of 8 are open source.
- GitBook
The knowledge layer for AI
- Carbone
Open source report and document generation API that converts JSON data into PDF, DOCX, XLSX, PPTX, ODS, CSV, HTML and other formats from templates
- Geekflare API
Web scraping, search, and screenshot APIs for AI agents and developers
- CalcBright
Free, keyless JSON API and MCP server exposing 167+ calculators to apps and AI assistants.
- CarAPI.dev
Automotive data API platform for VIN decoding, vehicle history, listings, and EV data
- Ampworth
JSON API and MCP servers for UK heat pump and solar calculators based on MCS standards
- OpenCage Geocoding API
Forward and reverse geocoding API powered by open data
- Apideck
The Unified API for all the accounting integrations you need
Side by side
| Product | Pricing | Free tier | API | MCP server | SDK | Open source |
|---|---|---|---|---|---|---|
| GreenCalculus API | Freemium | yes | yes | yes | yes | no |
| GitBook | Freemium | yes | yes | yes | no | no |
| Carbone | Freemium | yes | yes | yes | yes | yes |
| Geekflare API | Freemium · from $0 (Free, 500 credits/month); paid plans from $19/mo; credit packs from $10 | yes | yes | yes | yes | no |
| CalcBright | Free | yes | yes | yes | no | no |
| CarAPI.dev | Freemium · from Free tier (100 requests/month); paid plans from 29 EUR/month | yes | yes | yes | no | no |
| Ampworth | Free | yes | yes | yes | yes | yes |
| OpenCage Geocoding API | Freemium | yes | yes | yes | yes | no |
| Apideck | Usage-based · from 599 | no | yes | yes | yes | no |
Facts come from each product's own website, or from its verified owner when they have edited the listing. Each product page shows when it was last verified and how it was extracted. Similarity comes from the products' descriptions.
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