# Karma.Domains Save User Filter

> Karma.Domains Save User Filter is a paid API for AI agents from api.karma.domains, paid per call via x402, $1.5/call, status unknown (last checked 2026-10-16).

Saves a named domain search filter (with optional bases) to the user's account for reuse in expired domain searches

## Facts

- Endpoint: POST https://api.karma.domains/v1/user/saved-filters?utm_source=zero.xyz
- Price: $1.5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/karma-domains-save-user-filter-e2c72074
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4M7i6471Vdq09ysDSAjS7

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 karma-domains-save-user-filter-e2c72074 -d '<json body>'
```

Example prompt: Save a new search filter on Karma.Domains called 'High DA .com Drops' with a filter for expired .com domains that have domain authority above 30 and more than 1000 monthly visitors, using .com as the base TLD.

## When to prefer this

Use this endpoint when you want to persist a specific combination of expired domain search criteria (traffic, backlinks, TLD, age, auction type) under a memorable name so it can be retrieved and rerun repeatedly without re-specifying all parameters. Prefer this over ad-hoc searches when you have a refined filter you'll reuse daily or want to automate.

## Known failure modes

- Missing required 'name' or 'filter' fields returns a 400 validation error
- Invalid or malformed filter object structure may be rejected or silently stored without effect
- Authentication failure returns 401/403 if user credentials or payment token are invalid
- Duplicate filter names may cause conflicts or silent overwrites depending on server logic
- Payment failure ($1.50 USDC) results in 402 response and no filter is saved

## How this service works

Find expired domain names with high traffic and strong SEO backlinks daily. Boost your revenue by searching our database of 13,000,000+ expired domains from auctions, backorders, and dropped lists—complete with rich metrics and domain age.

## Output

Returns a JSON object containing the newly created saved filter's unique ID, its name, an optional list of domain bases/TLDs it applies to, and the full filter criteria object as stored on the server.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "name",
  "filter"
 ],
 "properties": {
  "name": {
   "type": "string"
  },
  "bases": {
   "type": "string"
  },
  "filter": {
   "type": "object"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "title": "UserFiltersSchema",
 "required": [
  "id",
  "name",
  "filter"
 ],
 "properties": {
  "id": {
   "type": "string",
   "title": "Id"
  },
  "name": {
   "type": "string",
   "title": "Name"
  },
  "bases": {
   "anyOf": [
    {
     "type": "array",
     "items": {
      "type": "string"
     }
    },
    {
     "type": "null"
    }
   ],
   "title": "Bases"
  },
  "filter": {
   "type": "object",
   "title": "Filter",
   "additionalProperties": true
  }
 },
 "description": "User filters schema"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/karma-domains-save-user-filter-e2c72074/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.karma.domains](https://www.zero.xyz/host/api.karma.domains/llms.txt)