# nodeproxy Agent Inbox

> nodeproxy Agent Inbox is a paid API for AI agents from nodeproxy-production.up.railway.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Creates an ephemeral one-time ingest URL that captures any externally POSTed payload (OAuth redirects, webhook callbacks, async job results) and holds it for agent polling

## Facts

- Endpoint: POST https://nodeproxy-production.up.railway.app/agent-inbox
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nodeproxy-agent-inbox-42a7b214
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Vi6TKAyZTZZZARU2ilNip

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 nodeproxy-agent-inbox-42a7b214 -d '<json body>'
```

Example prompt: Create a one-time inbox URL so I can receive the OAuth redirect from GitHub — capture whatever gets POSTed to it and hold it until I poll for the result.

## When to prefer this

Choose this endpoint when your agent needs to receive an inbound push event (OAuth redirect, webhook, async callback) but has no persistent public endpoint of its own. Ideal for ephemeral agent workflows where you need to bridge a one-time external push into a pollable event without standing up infrastructure. Prefer over persistent webhook services when you only need a single-use capture with no long-term storage requirements.

## Known failure modes

- Inbox URL expires before the external system posts to it — payload is lost
- External service sends a GET instead of POST — may not be captured correctly
- Payload exceeds size limits — request rejected
- Polling too late after TTL expiry — captured event no longer available
- Invalid or missing arguments object in request — malformed inbox creation

## How this service works

Ephemeral capture inbox for autonomous agents. Create a one-time ingest URL; anything POSTed to it (OAuth redirect, async job result, third-party webhook) is captured and held for you to poll. Bridges external pushes into pollable events for agents that have no public endpoint.

## Output

Returns an ephemeral ingest URL that external services can POST to; any payload received at that URL is captured and held, accessible via polling. Typically includes the inbox URL and a token or identifier for retrieving the captured payload.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "arguments": {
   "type": "object"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nodeproxy-agent-inbox-42a7b214/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nodeproxy-production.up.railway.app](https://www.zero.xyz/host/nodeproxy-production.up.railway.app/llms.txt)