# Saylor Innovations D&D 5e Rules Lookup

> Saylor Innovations D&D 5e Rules Lookup is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).

Looks up D&D 5th Edition SRD rules content including spells, monsters, classes, races, equipment, magic items, and conditions by name or category

## Facts

- Endpoint: GET https://saylorinnovations.com/api/dnd/spells/fireball?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/saylor-innovations-d-d-5e-rules-lookup-02bc2e7f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ONT5WPcgMX7HPUmb3cyi2

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability saylor-innovations-d-d-5e-rules-lookup-02bc2e7f
```

Example prompt: What are the full rules and stats for the Fireball spell in D&D 5e — damage dice, range, components, everything from the SRD?

## When to prefer this

Choose this endpoint when you need quick, structured access to D&D 5th Edition SRD rules content — spells, monsters, classes, items, or conditions — without maintaining your own rules database. Ideal for tabletop RPG assistants, character builders, encounter planners, or game masters needing rules references mid-session. Best when you need the open SRD 5.1 content specifically; if you need content from non-SRD sourcebooks, this endpoint will not have it.

## Known failure modes

- Resource not found in SRD (found: false) — non-SRD content like many monsters from official supplements are not included
- Misspelled or ambiguous resource names may return no results
- Content not in the SRD 5.1 open license (e.g. proprietary WotC-only content) will not be available
- Rate limiting or payment failures at $0.001 USDC per call via x402 protocol

## How this service works

D&D 5e Rules Lookup: spells, monsters, classes, items (SRD) — Games

## Output

Returns a JSON object indicating whether the requested resource was found (found: boolean), the name of the resource, its category (spell, monster, class, item, condition, etc.), and full details such as stat blocks, descriptions, damage dice, ranges, components, spell levels, saving throws, and other relevant rules text from the D&D 5e SRD 5.1.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "POST",
      "PUT",
      "PATCH",
      "DELETE",
      "HEAD"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "required": [
      "found"
     ],
     "properties": {
      "name": {
       "type": "string"
      },
      "found": {
       "type": "boolean"
      },
      "category": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/saylor-innovations-d-d-5e-rules-lookup-02bc2e7f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)