Market around 5e Rules SDK

An open-source Dungeons & Dragons 5e SRD rules engine with formal Quint models, TypeScript reducers, character creation, progression, character sheets, combat, and an MCP server for integrating rules into applications and agent workflows.

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Prices and medians update for the tier you select.

Compare at

5e Rules SDK · Pro

No Pro plan

—

Pro-MCP server median

$37

across 6 priced MCP servers

vs Pro MCP servers

No comparison

5e Rules SDK doesn't sell Pro

ⓘ Comparisons are same provider type (MCP server) and same buyer tier (Pro). Never across tiers.

Market density

8th pctile

1 competing vendors

Comparable listings · 30d

Flat

limited data · 1 priced comparable

MCP servers · Pro median

$37/mo

6 priced · $16.25–$54.75 mid 50%

Price spectrum · Pro plans · 5 of 13 providers priced · log scale · $5 → $39/mo

MCP servers Platforms◻ shaded = middle 50% · line = median (all types)5e Rules SDK has no comparable Pro price — not plotted

Products in this market

Ranked by how closely each one matches 5e Rules SDK's job. Prices show each provider's Pro state; entry prices are labelled as such. Unpriced products still belong to the market.

MMCP servers4Ranked by similarity

5e Rules SDKthis listing

● MCP

no public price

Grimoire Spellbook Server

Market = the products most similar to this one by capability; prices are median / quartiles over its priced members, separated by provider type and buyer tier.