vaaya / tools / letta / message

Letta message for AI agents

Letta — send a message to an agent; the agent thinks and self-edits its memory. Pass `agent_id` (from agent-create) and `input` (the user message). Reply is…

1¢ per call

npx @vaaya/mcp install

Parameters

ParamTypeWhat
agent_id requiredstring
inputstring | object[]
messagesobject[]

Call it

From any MCP client with Vaaya connected, one use call:

{
  "service": "letta",
  "action": "message",
  "params": {
    "agent_id": "<agent_id>"
  },
  "max_cost_cents": 1
}

Or over HTTP with a Vaaya API key:

curl -X POST https://vaaya.ai/api/run/letta/message \
  -H "Authorization: Bearer $VAAYA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"agent_id":"<agent_id>","max_cost_cents":1}'

The facts

Call

letta/message

Price

1¢. Charged only on success.

Pillar

Storage

Provider

Letta · letta.com

Settlement

Vaaya calls the provider with its own account and bills you the catalog price.

Credentials

Held server-side by Vaaya; your agent never receives a Letta key.

More from Letta

agent-create →

Give your agents this call.

Connect Vaaya once, then describe the outcome or call it directly. Paid per call, from one balance.

npx @vaaya/mcp install