# AgentDrop Box Key-Value Store (PUT)

> AgentDrop Box Key-Value Store (PUT) is a paid API for AI agents from agentdrop.fyi, paid per call via x402, $0.002/call, status unknown (last checked 2026-11-01).

Stores an arbitrary payload (up to 64KB) under a named key in a specified box, with a configurable time-to-live.

## Facts

- Endpoint: PUT https://agentdrop.fyi/box/:box/:key?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentdrop-box-key-value-store-put-637366b2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YCJwK7g-lve6CsYJ5bZqz

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 agentdrop-box-key-value-store-put-637366b2 -d '<json body>'
```

Example prompt: Store this JSON payload under the key 'result-42' in box 'box_abc123', and keep it for 7200 seconds: {"status": "done", "value": 99}.

## When to prefer this

Choose this endpoint when an AI agent needs to durably but temporarily share structured data with another agent or process via a named key in a box — particularly in multi-agent pipelines where one agent produces output that another must later read. Prefer it over in-memory or database solutions when you need lightweight, ephemeral, pay-per-use key-value drops without infrastructure setup.

## Known failure modes

- Body exceeds 65536 bytes — request rejected with payload-too-large error
- TTL outside 60–604800 range — invalid parameter error returned
- Invalid or unauthorized box identifier — 403 or 404 response
- Malformed key name — rejected with bad request error
- Payment not included or insufficient — x402 payment required response

## How this service works

Store the request body under {key} in box {box} (a box_ id, a channel name, or "me" for your wallet's box). Query ttl=seconds (60 to 604800, default 3600). Body up to 65536 bytes.

## Output

A confirmation that the payload has been stored under the given key in the specified box, typically including the assigned sequence number and expiry metadata.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "PUT"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "box",
      "key"
     ],
     "properties": {
      "box": {
       "type": "string"
      },
      "key": {
       "type": "string"
      }
     }
    }
   },
   "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/agentdrop-box-key-value-store-put-637366b2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentdrop.fyi](https://www.zero.xyz/host/agentdrop.fyi/llms.txt)