# D&D 5e Proficiency Lookup

> D&D 5e Proficiency Lookup is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns the type and referenced skill or tool of a D&D 5th Edition proficiency by its index key

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/dnd5e-proficiency
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/d-d-5e-proficiency-lookup-5ead8027
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RaMSTjnLjbHadenOGWa1o

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 d-d-5e-proficiency-lookup-5ead8027 -d '<json body>'
```

Example prompt: What type of proficiency is 'skill-perception' in D&D 5e, and what skill or tool does it reference? Use the proficiency index 'skill-perception'.

## When to prefer this

Use this endpoint when you need structured metadata about a specific D&D 5e proficiency by its index key — particularly when building character sheets, validating proficiency selections, or enriching game data with proficiency type and skill/tool references. Prefer this over a general D&D API when you need a low-cost, pay-per-call lookup without managing API keys.

## Known failure modes

- Invalid or unknown proficiency index returns an error or empty response
- Missing ?index= parameter results in a bad request
- Misspelled index slug returns no results
- Network timeout or upstream data unavailability

## How this service works

Type and referenced skill/tool of a D&D 5e proficiency (param index). Query: ?index= Returns JSON.

## Output

A JSON object containing the proficiency's name, type (e.g. Skills, Armor, Weapons, Tools), and a reference to the associated skill or tool entity, including its name and URL slug within the D&D 5e system.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/d-d-5e-proficiency-lookup-5ead8027/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from clonecho.builda.company](https://www.zero.xyz/host/clonecho.builda.company/llms.txt)