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API · /dnd-api

D&D 5e API

healthy 3,653 Subscribers

The complete Dungeons & Dragons 5th-edition System Reference Document as an API — spells, monsters, classes, subclasses, races, backgrounds, equipment, magic items, conditions, features, feats, skills and the full rules reference. Look up a spell by name (e.g. Fireball → 3rd-level evocation, 150 ft, 8d6 fire) or a monster statblock (e.g. Adult Red Dragon → CR 17, AC 19, 256 HP, legendary actions), list and filter any resource type (spells by level or school, monsters by challenge rating), or fetch full detail for any of the 24 SRD categories. Backed by the open dnd5eapi.co dataset. Ideal for character builders, virtual tabletops, encounter and spell-card generators, Discord bots and homebrew tools.

#dnd #dungeons-and-dragons #5e #rpg #srd #tabletop
api.oanor.com/dnd-api
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Machine-readable spec so AI agents can integrate this API.

/api/dnd-api/openapi.json
/api/dnd-api/llms.txt

Discovery: GET /api/index.json lists every API.

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
246 ms
Server probes · 24h
Subscribers
3,653
active
Total calls
110
last 7 days
status Full status page → · 30 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 6,000 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 6,000 calls/month
  • 2 req/sec
  • Spells, monsters & all SRD
  • No credit card
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Starter

€4.40 /month

  • 90,000 calls / month
  • 8 requests / second
  • Hard cap (429 above quota, no overage)
  • 90k calls/month
  • 8 req/sec
  • Filters & full statblocks
  • Email support
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Pro

€13.40 /month

  • 450,000 calls / month
  • 20 requests / second
  • Hard cap (429 above quota, no overage)
  • 450k calls/month
  • 20 req/sec
  • Character builders & VTTs
  • Priority support
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Mega

€35.90 /month

  • 2,200,000 calls / month
  • 50 requests / second
  • Hard cap (429 above quota, no overage)
  • 2.2M calls/month
  • 50 req/sec
  • Bots & gaming platforms
  • Dedicated SLA
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Related APIs

Other APIs with overlapping tags.

D&D Encounter API

Dungeons & Dragons 5th-edition encounter-building maths as an API, computed locally and deterministically — the XP-budget and difficulty numbers a Dungeon Master balances a fight with. The budget endpoint sums the per-character XP thresholds from the DMG across the party — by party size and level, or a list of mixed levels — to give the easy, medium, hard and deadly budget for one encounter (a party of four 5th-level characters has thresholds of 1,000 / 2,000 / 3,000 / 4,400 XP), plus the total adventuring-day budget. The difficulty endpoint rates an encounter: it sums the monsters' XP, multiplies by the encounter multiplier for the number of monsters (×1.5 for two, ×2 for three to six, up to ×4 for fifteen or more), and compares the adjusted XP to the party thresholds — four 450-XP monsters against that party come to 3,600 adjusted XP, a hard fight. The carry endpoint gives the carrying capacity (Strength × 15, scaled by size), push/drag/lift and the encumbrance thresholds. Everything is computed locally and deterministically, so it is instant and private. Ideal for tabletop, virtual-tabletop, DM-tool and TTRPG app developers, encounter-builder and balance tools, and game-master education. Pure local computation — no key, no third-party service, instant. Uses the DMG tables. Live, nothing stored. 3 compute endpoints. For monster stats and spells use a D&D SRD data API.

api.oanor.com/dndencounter-api

Dice API

A fast, fully-local dice toolkit for games and simulations: roll dice notation (NdM with plus and minus modifiers, multiple dice terms like 1d8+1d6+2, and keep-highest or keep-lowest for advantage and disadvantage such as 2d20kh1), parse and validate a notation, and compute the deterministic minimum, maximum and mean of a roll. Rolls use a cryptographically secure random source. Every endpoint accepts input via the query string or the request body. Pure server-side compute, no third-party upstream, so responses are instant and always available. Ideal for tabletop and RPG tools, Discord and chat bots, virtual tabletops and game backends.

api.oanor.com/dice-api

Dice Probability API

Tabletop dice-probability maths as an API, computed locally and deterministically and exactly — the odds behind the rolls, not the rolls themselves. The advantage endpoint gives the D&D-style chances of beating a target on a d20 (or any die) rolling normally, with advantage (roll twice, keep the higher) or with disadvantage (keep the lower): needing an 11+ is 50 % normally, 75 % with advantage and 25 % with disadvantage, and it reports the average roll — advantage lifts a d20 from 10.5 to about 13.8. The pool endpoint handles success-counting systems (World of Darkness, Shadowrun): for a pool of dice that succeed on a face at or above a threshold it gives the chance per die, the expected number of successes and the exact binomial probability of getting exactly, or at least, a target number — six d10s succeeding on 7+ average 2.4 successes with a 45.6 % chance of three or more. The exploding endpoint gives the mean of an exploding ("acing", open-ended) die that re-rolls and adds on its maximum face — a d6 averages 4.2 instead of 3.5. Everything is computed locally and deterministically, so it is instant and private. Ideal for tabletop, virtual-tabletop, game-design and TTRPG app developers, odds-and-probability helpers, and game-master tools. Pure local computation — no key, no third-party service, instant. Exact maths, no simulation. Live, nothing stored. 3 compute endpoints. For random rolls use a dice-roller API.

api.oanor.com/dicepool-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for D&D 5e API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call D&D 5e API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for D&D 5e API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does D&D 5e API cost?
D&D 5e API has a free tier with 100 calls / month. Paid plans start at €4.40 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is D&D 5e API GDPR-compliant?
All requests to D&D 5e API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.

Pick an endpoint from the list on the left to see its details and try it.

Code snippets

Sign up to get an API key, then call any path under your slug.

curl https://api.oanor.com/dnd-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/dnd-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/dnd-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
    "https://api.oanor.com/dnd-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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