Authr vs World Anvil
World Anvil is the best-in-class worldbuilding wiki, with maps, timelines and campaign tools for game masters, and public world hosting. Here is how Authr compares.
Choose World Anvil if…
…you run campaigns or want to publish your world as a public wiki.
Choose Authr if…
…you're writing a book set in that world.
Authr vs World Anvil at a glance
| Authr | World Anvil | |
|---|---|---|
| What it is | Agent-first book-writing app: manuscript, story bible and a team of AI agents in one place | Worldbuilding wiki and campaign manager |
| Platform | Web, on any computer or phone browser | Web |
| Price | Free; Pro $19/month ($190/year); Studio $49/month ($490/year) | Free; paid tiers from about $4.50/month billed yearly |
| Free plan | Yes, your first book with every writing tool | Yes |
| AI | Seven built-in agent roles plus custom ones; any external agent too | None |
| Your own AI key | No keys needed. On Pro, bring your Claude or ChatGPT | No |
| API | Yes, full REST API on Pro | Boromir API on paid tiers, keys reviewed manually |
| MCP server | Yes: work from Claude and ChatGPT on Pro | No official server (community ones exist) |
| Story bible | Codex with automatic mention tracking | 25+ article templates with auto-linking (best in class) |
| Relationship map | Yes, relationship graph | Family trees, diplomacy webs |
| Timeline | Yes | Yes, parallel timelines |
| Collaboration | 2 collaborators on Pro, 9 on Studio, unlimited beta readers | Co-authors by tier |
| Export | Word and Markdown; EPUB and print PDF on Pro | World and article exports |
World Anvil details checked 4 November 2026 from its own website where it would load. Prices change; check World Anvil for the latest. Spot something out of date? Tell us at support@authr.shop.
Where World Anvil is stronger
- Much deeper worldbuilding: layered maps, RPG statblocks, family trees, diplomacy webs.
- Public world hosting with a community, custom domains and reader monetisation.
- A very cheap paid tier and lifetime options.
Where Authr is different
- Built-in AI agents in editorial roles.
- A REST API, MCP server and webhooks on Pro, with no manual review.
- Manuscript first: parts, chapters and scenes, corkboard and plot grid, and EPUB, DOCX, PDF and Markdown export.
Questions
What's the main difference between Authr and World Anvil?
World Anvil is the best-in-class worldbuilding wiki, with maps, timelines and campaign tools for game masters, and public world hosting. Authr is manuscript first: the book, its story bible and a team of agents that write and check scenes against it.
Can I keep both?
Yes. Many writers keep their wiki in World Anvil and the manuscript in Authr, with the essentials of each character and place in Authr's codex so agents can use them.
Is Authr free?
Yes. The Free plan covers your first book with every writing tool and about 15 agent tasks a month. Pro is $19 a month and Studio $49.
Other comparisons
Try Authr next to World Anvil.
Free, with every feature. Import your draft and see what the agents make of chapter one.