# Tomba Author Finder

> Tomba Author Finder is a paid API for AI agents from Tomba API at mpp.orthogonal.com, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-11).

Find the email address of a blog post author given the article's URL.

## Facts

- Endpoint: GET https://mpp.orthogonal.com/tomba/v1/author-finder?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Provider: Tomba API
- Docs: https://api.tomba.io
- Website: https://api.tomba.io
- Tags: email, verification, finder, data
- Canonical page: https://www.zero.xyz/c/tomba-api-tomba-author-finder-5351c914
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-wzuLc14AiScJtkPwtDF-

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 tomba-api-tomba-author-finder-5351c914
```

Example prompt: Can you find the email address of the author who wrote this article: https://techcrunch.com/2024/01/15/the-future-of-ai-agents/ ?

## When to prefer this

Use this endpoint when you have a specific blog post or article URL and need to find the author's email address for outreach, journalism, PR, or lead generation purposes. It is more targeted than a domain-level email search because it resolves to the individual author of a specific piece of content.

## Known failure modes

- Article URL not found or inaccessible — no author data returned
- Author email not publicly discoverable — empty or null result
- Malformed or non-blog URL provided — validation error
- Rate limit exceeded — HTTP 429 response
- Invalid or expired API credentials — HTTP 401 response

## How this service works

Find the email address of a blog post author from the article URL.

## Output

Returns the email address and possibly additional profile information (name, social links) for the author of the given blog post or article URL.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tomba-api-tomba-author-finder-5351c914/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mpp.orthogonal.com](https://www.zero.xyz/host/mpp.orthogonal.com/llms.txt)