# SYNTHORA Gravatar Email Identity Profile

> SYNTHORA Gravatar Email Identity Profile is a paid API for AI agents from gravatar-identity-profile.hergertsynthora.com, paid per call via x402, $0.008/call, status down (last checked 2026-09-15).

Looks up a public Gravatar profile (display name, avatar, verified social accounts) from an email's MD5 hash, returning a structured persona or 404 if none exists.

## Facts

- Endpoint: POST https://gravatar-identity-profile.hergertsynthora.com/service
- Price: $0.008/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synthora-gravatar-email-identity-profile-b203aae3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oGAyvT2rvYmcR2tjR1htq

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 synthora-gravatar-email-identity-profile-b203aae3 -d '<json body>'
```

Example prompt: Can you look up the public Gravatar profile for the email hash d41d8cd98f00b204e9800998ecf8427e and tell me the display name, avatar, and any verified social accounts attached to it?

## When to prefer this

Use this endpoint when you need to enrich an email address with a public Gravatar persona — display name, avatar, and verified social accounts — without requiring the raw email address (only the MD5 hash is needed, preserving some privacy). Prefer this over general social-profile APIs when Gravatar coverage is sufficient and the use case is lightweight email-to-identity enrichment at low cost.

## Known failure modes

- 404 returned when no Gravatar profile exists for the given MD5 hash
- Invalid or malformed MD5 hash input causes lookup failure
- Gravatar API rate limiting or downtime propagated as error
- Profiles set to private by the user may return limited or no data
- Incorrect MD5 hash (e.g. computed from unnormalized email) yields no results

## How this service works

Returns the public Gravatar profile (username, display name, avatar, verified social accounts) tied to an email's MD5 hash via the gravatar.com JSON endpoint, or 404 if none exists. A2A use: email-enrichment and identity-verification agents attach a public persona to an address and confirm a real human behind it.

## Output

A JSON object with ok:true and a result containing the Gravatar profile data (username, display name, avatar URL, verified linked social accounts), or a 404 response if no Gravatar profile is associated with the given email MD5 hash.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "email_md5_hash"
 ],
 "properties": {
  "email_md5_hash": {
   "type": "string",
   "description": "email_md5_hash"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synthora-gravatar-email-identity-profile-b203aae3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from gravatar-identity-profile.hergertsynthora.com](https://www.zero.xyz/host/gravatar-identity-profile.hergertsynthora.com/llms.txt)