# Teppi Research Brief

> Teppi Research Brief is a paid API for AI agents from api.teppi.xyz, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-10).

Returns a research brief summarizing the recorded response data from paid x402 API calls and remote MCP server interactions tracked by Teppi

## Facts

- Endpoint: POST https://api.teppi.xyz/v1/research/brief?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/teppi-research-brief-088015a5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_D6W999gOSWxlx_Q6WsqXb

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 teppi-research-brief-088015a5 -d '<json body>'
```

Example prompt: Pull a Teppi research brief on the x402 endpoint at api.example.com — I want to see what was actually returned when it was called and what it costs.

## When to prefer this

Choose this endpoint when you need to inspect what a paid x402 API or remote MCP server actually returns before or after calling it yourself — especially useful for discovery, due diligence, or auditing recorded agent interactions in the x402 ecosystem. Prefer this over generic API documentation lookups when you want ground-truth delivery records from real paid calls rather than synthetic descriptions.

## Known failure modes

- Endpoint or topic not found in Teppi's tracked dataset — returns empty or null brief
- Payment of $0.02 USDC not processed — call rejected with 402 status
- Malformed POST body — returns validation error
- Endpoint has no recorded paid call history yet — brief may be sparse or missing fields

## How this service works

What came back for a paid agent call, written down: every x402 endpoint and remote MCP server we watch, and every call we paid for.

## Output

A JSON research brief containing recorded response data from paid calls to tracked x402 endpoints and remote MCP servers, including details about what was returned, endpoint metadata, and call history as logged by Teppi.

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/teppi-research-brief-088015a5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.teppi.xyz](https://www.zero.xyz/host/api.teppi.xyz/llms.txt)