# Usito Usherbrooke — Wrapped API

> **You are on:** `https://api.beta.paywithlocus.com/api` | [llms.txt](https://beta.paywithlocus.com/llms.txt) | [docs](https://docs.paywithlocus.com)
>
> Locus runs on multiple environments -- make sure every URL you call matches your expected environment.
> | Environment | Landing | API | Docs |
> |---|---|---|---|
> | Production | paywithlocus.com | api.paywithlocus.com | docs.paywithlocus.com |
> | Beta | beta.paywithlocus.com | api.beta.paywithlocus.com | docs.paywithlocus.com |
> | Stage | stage.paywithlocus.com | api.stage.paywithlocus.com | docs.paywithlocus.com |
>
> If the API URL above doesn't match your expected environment, re-fetch this file from the correct domain.

> Look up French-Canadian word definitions, search for specific terms, and access complete conjugation tables for verbs all in one place. Browse the entire USITO dictionary by letter or explore verb conjugation models to perfect your Quebec French.

**Category:** Education | **Website:** [usito.usherbrooke.ca/](https://usito.usherbrooke.ca/) | **Docs:** [parse.bot/marketplace/a9fe9339-5d2a-48e6-aa30-40fb31812223/usito-usherbrooke-ca-api](https://parse.bot/marketplace/a9fe9339-5d2a-48e6-aa30-40fb31812223/usito-usherbrooke-ca-api)

Pay-per-use API proxy for Locus Pro. Each call burns credits from your workspace balance.

## Access

**Base URL:** `https://api.beta.paywithlocus.com/api/wrapped/credits/usito-usherbrooke/`
**Auth:** `Authorization: Bearer <LOCUS_CREDITS_SECRET_KEY>` (an `lcr_` secret key or a scoped `lcac_` agent credential)
**Required header:** `Idempotency-Key: <fresh UUID per call>`. A retry with the same key replays the stored result without a new charge.
**Response:** the provider response after any endpoint-specific normalization. `X-Locus-Credits-Charged` carries the charge and `X-Locus-Credits-Balance` the remaining balance. Insufficient credits return `402` before the provider is called.
**Pricing:** estimated costs below are USD. Locus debits the credit equivalent at your workspace rate.

Full call contract: https://docs.paywithlocus.com/api-reference/introduction

> Using a Pay With Locus wallet key (`claw_` prefix)? Wallet routes are documented separately: https://docs.paywithlocus.com/wrapped-apis/for-agents

## Endpoints

### Get all words for letter

Fetches the word index for a given letter and then retrieves the full definition for each word. Combines index lookup with entry detail in one call. Use the limit parameter to cap the number of definitions fetched — omitting it returns all words for that letter (can be slow for common letters).

**Estimated cost:** Metered

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `letter` | string | Yes | Single lowercase letter (a-z). |
| `limit` | integer | No | Max number of words to fetch definitions for. Omitting returns all words for that letter. |

```bash
curl -X POST https://api.beta.paywithlocus.com/api/wrapped/credits/usito-usherbrooke/get-all-words-for-letter \
  -H "Authorization: Bearer $LOCUS_CREDITS_SECRET_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{"letter":"<string>","limit":"<integer>"}'
```

### Get conjugation models

Fetches the complete index of verb conjugation models available in the USITO dictionary. Each model represents a conjugation pattern that multiple verbs follow. Returns model names and slugs usable with get_verb_conjugation.

**Estimated cost:** Metered

_No parameters required._

```bash
curl -X POST https://api.beta.paywithlocus.com/api/wrapped/credits/usito-usherbrooke/get-conjugation-models \
  -H "Authorization: Bearer $LOCUS_CREDITS_SECRET_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{}'
```

### Get verb conjugation

Fetches the full conjugation table HTML for a given verb. If the base slug does not have a conjugation table, automatically tries the slug with '_1' suffix. Slugs from get_conjugation_models or search_words work directly. The returned HTML contains all tenses and moods in a structured table format.

**Estimated cost:** Metered

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `slug` | string | Yes | Verb slug (e.g. 'aimer', 'être', 'avoir'). Slugs from get_conjugation_models work directly. |

```bash
curl -X POST https://api.beta.paywithlocus.com/api/wrapped/credits/usito-usherbrooke/get-verb-conjugation \
  -H "Authorization: Bearer $LOCUS_CREDITS_SECRET_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{"slug":"<string>"}'
```

### Get word entry

Fetches a word's full definition, grammatical class, phonetic transcription, and URL from its dictionary article page. The slug identifies the word uniquely and is obtained from get_word_index_by_letter or search_words.

**Estimated cost:** Metered

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `slug` | string | Yes | The word slug as returned by get_word_index_by_letter or search_words (e.g. 'abaca', 'chat_1', 'être_1'). |

```bash
curl -X POST https://api.beta.paywithlocus.com/api/wrapped/credits/usito-usherbrooke/get-word-entry \
  -H "Authorization: Bearer $LOCUS_CREDITS_SECRET_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{"slug":"<string>"}'
```

### Get word index by letter

Fetches all words/expressions starting with a given letter from the USITO dictionary index. Returns word entries with their slug, grammatical class, and gender. Pagination is handled internally — the full list for the letter is returned in one call.

**Estimated cost:** Metered

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `letter` | string | Yes | Single lowercase letter (a-z) to browse the dictionary index. |

```bash
curl -X POST https://api.beta.paywithlocus.com/api/wrapped/credits/usito-usherbrooke/get-word-index-by-letter \
  -H "Authorization: Bearer $LOCUS_CREDITS_SECRET_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{"letter":"<string>"}'
```

### Search words

Searches the USITO dictionary for words matching a query string. Returns matching entries with their slug, document type, word text, and grammatical class. Results can be used to navigate to full definitions via get_word_entry.

**Estimated cost:** Metered

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `query` | string | Yes | Search term (e.g. 'chat', 'aimer'). |

```bash
curl -X POST https://api.beta.paywithlocus.com/api/wrapped/credits/usito-usherbrooke/search-words \
  -H "Authorization: Bearer $LOCUS_CREDITS_SECRET_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{"query":"<string>"}'
```

## Next steps

- [All wrapped API providers](https://beta.paywithlocus.com/wapi/index.md): pick another provider.
- [Find and call tools](https://beta.paywithlocus.com/agent/tools.md): price ceilings, async results, and errors.
- [Credits and billing](https://beta.paywithlocus.com/agent/billing.md): what a call costs and how to add credits.
- [Agent docs index](https://beta.paywithlocus.com/agent/index.md): every Locus agent page.