# New Runtime Rumor Check

> New Runtime Rumor Check is a paid API for AI agents from newruntime.com, paid per call via x402, $0.4/call, status unknown (last checked 2026-10-16).

Checks a claim or rumor against social posts, official sources, and trusted authors to return a corroboration verdict

## Facts

- Endpoint: POST https://newruntime.com/agent-payments/rumor-check?utm_source=zero.xyz
- Price: $0.4/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/new-runtime-rumor-check-550b1d39
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7oEHYxGvF0TWIWzZ-6P_6

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 new-runtime-rumor-check-550b1d39 -d '<json body>'
```

Example prompt: Can you rumor-check this claim for me: 'OpenAI is about to acquire a major agent infrastructure startup this quarter' — I want to know if it's corroborated, how many independent authors are covering it, and whether there's an official source?

## When to prefer this

Use this endpoint when you need to quickly fact-check or corroborate a specific rumor or claim in the AI, software, or agent-ecosystem space — particularly when you want both a structured verdict and supporting evidence from trusted and independent authors. Prefer this over general web search when you want a synthesized corroboration signal rather than raw search results, and when the claim is about agent-shaped software, AI products, or tech industry shifts covered by New Runtime's signal network.

## Known failure modes

- Claim too short (under 10 characters) or too long (over 300 characters) — returns validation error
- Claim is too vague or ambiguous to search against known sources — may return low-confidence or empty results
- No social posts or official sources found — verdict may be 'unverified' with empty sample_posts
- Rate limiting or payment failure via x402 — returns 402 Payment Required
- Network timeout if upstream source indexing is slow

## How this service works

New Runtime tracks the systems, signals, and shifts reshaping software as agents become first-class participants in work, products, and organizations.

## Output

Returns a JSON object with a verdict (e.g. 'corroborated', 'unverified', 'false'), sample social posts supporting or refuting the claim, an official source URL if found, a list of trusted authors who covered it, and a count of independent authors who wrote about it.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "claim": {
   "type": "string",
   "maxLength": 300,
   "minLength": 10,
   "description": "The rumour or claim to check."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "type": "rumor_check_result",
  "verdict": "corroborated",
  "sample_posts": [],
  "official_source": null,
  "trusted_authors": [
   "example"
  ],
  "independent_authors": 13
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/new-runtime-rumor-check-550b1d39/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from newruntime.com](https://www.zero.xyz/host/newruntime.com/llms.txt)