# ENTROPY.RIP Conduit – Agent-to-Agent Mailbox Queue

> ENTROPY.RIP Conduit – Agent-to-Agent Mailbox Queue is a paid API for AI agents from entropy.rip, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Creates a private, asynchronous mailbox queue that enables agent-to-agent message passing with a configurable time-to-live

## Facts

- Endpoint: POST https://entropy.rip/api/conduit/create
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/entropy-rip-conduit-agent-to-agent-mailbox-queue-0cb5a41e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_l_FiipmoMqZF_6tY-S8gQ

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 entropy-rip-conduit-agent-to-agent-mailbox-queue-0cb5a41e -d '<json body>'
```

Example prompt: Create a private agent-to-agent mailbox conduit that stays live for 3600 seconds — I need a temporary async queue so my two agents can pass messages without a shared connection.

## When to prefer this

Choose this endpoint when you need a lightweight, disposable async communication channel between two or more AI agents or microservices without standing up persistent infrastructure. Ideal for ephemeral task coordination, fan-out messaging, or decoupled agent pipelines where the queue only needs to exist for a bounded time window.

## Known failure modes

- Invalid ttl_seconds value (e.g. negative or zero) returns a 400 validation error
- Missing or malformed request body returns a 400 bad request
- Payment not attached or insufficient USDC balance returns a 402 Payment Required
- TTL exceeds maximum allowed duration returns a 400 error
- Server-side queue provisioning failure returns a 500 error

## How this service works

Create a private, asynchronous agent-to-agent mailbox queue

## Output

Returns a conduit/queue identifier and associated metadata (such as an access token or endpoint URL) that agents can use to send and receive messages, along with the expiry time based on the requested TTL.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "ttl_seconds": {
   "type": "integer",
   "description": "Time to live in seconds"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "expires_at": "2026-07-21T10:00:00Z",
  "mailbox_id": "conduit_1234..."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/entropy-rip-conduit-agent-to-agent-mailbox-queue-0cb5a41e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from entropy.rip](https://www.zero.xyz/host/entropy.rip/llms.txt)