# Apollo Keyword Opportunity Flywheel

> Apollo Keyword Opportunity Flywheel is a paid API for AI agents from apolloai.team, paid per call via x402, $0.05/call, status down (last checked 2026-09-15).

Expands a seed keyword into variants, search opportunity mappings, and cross-linked intelligence feeds for builders and agents.

## Facts

- Endpoint: GET https://apolloai.team/api/keyword-opps
- Price: $0.05/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/apollo-keyword-opportunity-flywheel-afbf55a3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CqeTSxYe8975S5INnpU2g

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 apollo-keyword-opportunity-flywheel-afbf55a3
```

Example prompt: Seed the keyword 'AI agents' and give me variant keywords plus opportunity mappings — use expansion depth 3 so I get the full picture.

## When to prefer this

Use this endpoint when you need to quickly expand a single seed keyword into a structured opportunity map with volume and competition signals, especially when you want cross-linked Apollo feed recommendations. Prefer it over generic keyword tools when you need machine-readable opportunity data with integrated feed discovery for autonomous agents.

## Known failure modes

- Missing required 'seed' query parameter returns a 400 error
- Invalid 'depth' value outside 1-3 range may return an error or default to 2
- Payment not provided or insufficient USDC triggers a 402 Payment Required response
- Empty or very short seed keyword may return minimal or empty variants
- Rate limiting may occur under high-frequency calling

## How this service works

Keyword flywheel — seed a keyword, get variants + opportunity mapping + cross-linked feeds.

## Output

Returns the original seed keyword, a list of related keyword variants, an opportunity array with volume, competition level, opportunity description, and linked Apollo feed URLs per keyword, plus a total keyword count.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "seed"
     ],
     "properties": {
      "seed": {
       "type": "string",
       "description": "Seed keyword to expand (e.g. 'AI agents', 'web scraping')"
      },
      "depth": {
       "type": "string",
       "description": "Expansion depth: 1-3 (default 2)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "seed": "AI agents",
  "variants": [
   "autonomous agents",
   "agent frameworks",
   "agentic AI",
   "multi-agent systems"
  ],
  "opportunities": [
   {
    "volume": "medium",
    "keyword": "agent frameworks",
    "competition": "low",
    "opportunity": "Build comparison tool",
    "linked_feeds": [
     "/api/agentic-trends"
    ]
   }
  ],
  "total_keywords": 12
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/apollo-keyword-opportunity-flywheel-afbf55a3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from apolloai.team](https://www.zero.xyz/host/apolloai.team/llms.txt)