get_v1_pubsub_kv_bucket_key
Get returns one key's current value and revision.
Get returns one key's current value and revision. 404 when the bucket does not exist, the key was never written, or its latest revision is a delete.
| Tool | get_v1_pubsub_kv_bucket_key |
| Door | https://api.hanzo.ai/v1/mcp |
| Method | tools/call (JSON-RPC 2.0) |
| Arguments | 2, 2 required |
| Operation | GET /v1/pubsub/kv/{bucket}/{key} |
| Product | pubsub |
Arguments
| Field | Type | Required | Default | Values | Description |
|---|---|---|---|---|---|
bucket | string | yes | — | — | Bucket is the bucket, from the path. |
key | string | yes | — | — | Key is the key, from the path. |
tools/list declares a type and a description for each field and nothing further. The Required column is taken from GET /v1/pubsub/kv/{bucket}/{key}, the operation this tool dispatches to — the same declaration the REST API validates against. A — means neither the door nor that operation constrains the field.
Call it
A tools/call carries every argument in one flat object — nothing binds to a path or a query string. This call carries exactly the arguments the operation requires, so it is the smallest one that can run.
curl -X POST https://api.hanzo.ai/v1/mcp \
-H "Authorization: Bearer $HANZO_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "get_v1_pubsub_kv_bucket_key",
"arguments": {
"bucket": "<bucket>",
"key": "<key>"
}
}
}'Values are the operation's own defaults and enumerated values where it declares them, and a <placeholder> where neither source declares one. tools/list needs no credential; tools/call does — called without one the door answers HTTP 200 with a JSON-RPC result whose isError is set and whose text says what was missing. How to get a key →
The operation behind it
| Operation | Route | Product | Summary |
|---|---|---|---|
get_v1_pubsub_kv_bucket_key | GET /v1/pubsub/kv/{bucket}/{key} | pubsub | Get returns one key's current value and revision. |
The same capability over plain HTTP is in the pubsub API reference, on https://api.hanzo.ai.
All 755 tools · The door · API reference
Generated from tools/list on https://api.hanzo.ai/v1/mcp — 833 tools captured 2026-08-01, of which 755 are documented here (the operator surface is not published) (this build read the vendored copy; the door was unreachable).
How is this guide?
get_v1_pubsub_jetstream_streams_stream_consumers_name
GetConsumer returns one consumer of one org stream — its configuration and its cursor: delivered and acknowledged sequences, pending and redelivered counts.
get_v1_pubsub_kv_bucket_key_history
History returns one key's retained revisions, oldest first — every put and every delete marker up to the bucket's History depth.