# x402 Agent Judgment & Synthesis API – Keyword Planning Endpoint

> x402 Agent Judgment & Synthesis API – Keyword Planning Endpoint is a paid API for AI agents from products.54.168.247.83.sslip.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).

Generates a clustered keyword plan with search volume, competition scores, and content recommendations for a given seed topic and market, paid per-call via x402 at $10 USDC.

## Facts

- Endpoint: POST https://products.54.168.247.83.sslip.io/v1/research?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-agent-judgment-synthesis-api-keyword-planning-endpoint-2f9e0dc0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DQQSZCpiJUvQUTSBM19Ki

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 x402-agent-judgment-synthesis-api-keyword-planning-endpoint-2f9e0dc0 -d '<json body>'
```

Example prompt: Generate a keyword plan for my seed topic 'x402 agent tools' targeting the US developer market — give me 3 clusters, at least 500 monthly volume, 20 keywords total, and cap competition at 0.4.

## When to prefer this

Use this endpoint when an AI agent needs on-demand, pay-per-call keyword research without API key registration or subscription overhead. It is ideal for agentic workflows that need clustered keyword intelligence with content recommendations in a single call. Prefer it over full-featured SEO platforms when cost predictability per call matters, when no persistent account is required, or when operating in an automated pipeline that handles x402 micropayments natively.

## Known failure modes

- Payment not received or insufficient USDC balance — returns 402 Payment Required
- Missing required seed field — returns 400 with validation error
- Invalid max_competition value outside 0–1 range — returns 400
- Keyword data unavailable for specified market — returns partial results or empty clusters
- Service timeout on large keyword sets — returns 504 or partial response

## How this service works

Pay-per-call agent utilities: pre-flight compliance classification, pre-flight URL safety, composed company/market research, live web search, page scraping, and keyword planning. Pay $0.001 USDC (research/classify/url_safety/search/scrape) or $0.002 USDC (keyword_plan) per call via x402 -- no API keys, no signup.

## Output

Returns a structured markdown keyword plan organized into clusters, each listing specific keywords with estimated monthly search volume and competition scores (0–1), plus content recommendations such as suggested article types or comparison guides to target those keywords.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "seed": {
   "type": "string"
  },
  "market": {
   "type": "string"
  },
  "clusters": {
   "type": "integer"
  },
  "min_volume": {
   "type": "integer"
  },
  "num_keywords": {
   "type": "integer"
  },
  "max_competition": {
   "type": "number"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": "# Keyword Plan: x402 agent tools\n## Cluster 1: agent tooling\n- x402 keywords (volume 1.2K, competition 0.3)\n## Content recommendations\n- Build a comparison guide",
  "status": "success"
 },
 "description": "Clustered keyword plan with search volume, competition scores, and content recommendations."
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-agent-judgment-synthesis-api-keyword-planning-endpoint-2f9e0dc0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from products.54.168.247.83.sslip.io](https://www.zero.xyz/host/products.54.168.247.83.sslip.io/llms.txt)