# AgentRXI Memory

> AgentRXI Memory is a paid API for AI agents from agentrxi.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-15).

Persistent key-value note storage for AI agents — save, get, search, list, and delete notes that survive across sessions, scoped privately to the paying wallet.

## Facts

- Endpoint: GET https://agentrxi.com/v1/memory?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentrxi-memory-d447fa4d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_K-bqAGiu8CTBU9hkoEOMU

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 agentrxi-memory-d447fa4d
```

Example prompt: Save a note with the key 'project-deadline' and the value 'Q3 launch is August 15th, confirmed by Sarah' so you can recall it next session.

## When to prefer this

Choose this endpoint when an AI agent needs durable, cross-session memory scoped to a specific wallet identity — for example, storing user preferences, tracking intermediate task state, or persisting facts between separate LLM conversations. It is ideal when you want memory that is private to a paying wallet (not shared), supports up to 2,000 distinct keys, and requires simple key-value semantics with full-text search. Prefer alternatives if you need relational queries, large binary storage, or shared/collaborative memory.

## Known failure modes

- Key not found: returns empty or error if the specified key doesn't exist
- Wallet limit exceeded: error if the wallet already has 2,000 keys stored
- Value too long: error if value exceeds 16,000 characters
- Missing required 'action' parameter: request fails without specifying save/get/search/list/delete
- Payment failure: call not executed if USDC payment via x402 is not completed
- Invalid action value: returns error if action is not one of the five accepted enum values

## How this service works

Agent memory: save, get, search, list and delete notes that persist between sessions, private to the wallet that pays. Up to 2,000 keys per wallet, 16,000 characters per value. Pay with an EVM wallet. Also callable as GET with the same fields as query parameters.

## Output

Returns the stored value for a get action, a list of matching keys/values for list or search actions (up to the specified limit), or a confirmation message for save and delete actions. All data is scoped privately to the wallet that paid for the call.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "action"
     ],
     "properties": {
      "key": {
       "type": "string"
      },
      "limit": {
       "type": "integer"
      },
      "query": {
       "type": "string",
       "description": "Text to search for (search)"
      },
      "value": {
       "type": "string"
      },
      "action": {
       "type": "string",
       "description": "save | get | search | list | delete"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentrxi-memory-d447fa4d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentrxi.com](https://www.zero.xyz/host/agentrxi.com/llms.txt)