> ## Documentation index
> Fetch the complete documentation index at: https://docs.leadity.io/llms.txt
> Use this file to discover all available pages before exploring further.

# List credit history

> Read the credit ledger: every purchase, spend, refund and expiry.

Answers one page of every movement of the account's balance, newest first, 25 to a page: purchases, scrapes and validations with their refunds, expiries and bonuses. delta is signed: negative left the balance, positive came back to it. A new entry shifts older ones to later pages.

`GET https://api.leadity.io/v1/billing/history`

- Scope: `read`
- Spends credits: no
- MCP tool: `list_credit_history`

## Headers

- `Authorization`, string, required. Bearer, a space, then an API key: Bearer lk_api_... An MCP key is refused here with wrong_key_kind.

## Query parameters

- `page`, integer, optional. The page to read, from 1. Default 1. 1 to 10,000. Default `1`.

## Example request

```bash cURL
curl "https://api.leadity.io/v1/billing/history?page=1" \
  -H "Authorization: Bearer $LEADITY_API_KEY"
```

```javascript Node.js
const response = await fetch("https://api.leadity.io/v1/billing/history?page=1", {
  headers: {
    Authorization: `Bearer ${process.env.LEADITY_API_KEY}`,
  },
});

const data = await response.json();
console.log(data);
```

```python Python
import os

import requests

response = requests.get(
    "https://api.leadity.io/v1/billing/history",
    params={"page": 1},
    headers={
        "Authorization": f"Bearer {os.environ['LEADITY_API_KEY']}",
    },
)

print(response.json())
```

## Response

- `balance`, integer, required. The balance now, in credits.
- `entries`, object[], required.
  - `id`, string, required. The entry's id.
  - `date`, string, required. When the balance moved. An ISO 8601 timestamp in UTC.
  - `kind`, string, required. What moved it: purchase, scrape, validation, refund, dispute, bonus, adjustment or expired. New kinds may appear.
  - `title`, string, required. The line as the app prints it: the scrape's name, the pack, or what happened.
  - `note`, string | null, required. A second line when there is one, e.g. what a purchase cost.
  - `delta`, integer, required. Credits, signed: negative left the balance, positive came back to it.
  - `scrapeId`, string | null, required. The scrape this entry belongs to, when it belongs to one.
  - `validationId`, string | null, required. The validation run this entry belongs to, when it belongs to one.
- `page`, integer, required.
- `pageCount`, integer, required.
- `total`, integer, required. Entries across every page.

## Example response

```json 200
{
  "balance": 4820,
  "entries": [
    {
      "id": "Zp4Kq8rT2m",
      "date": "2026-10-03T16:40:02.000Z",
      "kind": "scrape",
      "title": "TX roofers, mobiles",
      "note": "reserve",
      "delta": -1000,
      "scrapeId": "Vb7nW3xQ9k",
      "validationId": null
    }
  ],
  "page": 1,
  "pageCount": 3,
  "total": 61
}
```

## Errors

Every refusal answers `{ error, message }` with the status below. The full list is on the [Errors](https://docs.leadity.io/errors) page.

| Code | Status | Meaning | Extra fields |
| --- | --- | --- | --- |
| `unauthorized` | 401 | The API key is missing, malformed, revoked or expired. | - |
| `wrong_key_kind` | 401 | This key opens the other surface: an API key works on the HTTP API, an MCP key on the MCP server. | - |
| `account_suspended` | 403 | The account is suspended. | - |
| `email_not_verified` | 403 | The account's email address is not verified yet. | - |
| `invalid_body` | 400 | The request does not match the operation's schema. | `issues`: The problems found, each with path (the field as a dotted path, led by the part of the request it travels in: path, query or body, such as body.items.1) and message (what is wrong there). |
| `rate_limited` | 429 | Too many requests. Wait for the Retry-After seconds and try again. | `retryAfterSeconds`: The seconds to wait, the same number as the Retry-After header. |
| `try_again` | 503 | Leadity could not answer just now. Retry in a moment, with the same Idempotency-Key on a spending call. | `retryAfterSeconds`: When a request with this Idempotency-Key is still being processed: the seconds to wait before retrying with the same key, as the Retry-After header says. |
| `internal_error` | 500 | Something failed on our side. Nothing was charged twice. | `body`: On the MCP server, when Leadity answered in a shape the tool does not publish: that answer as it came. |