post_v1_pubsub_jetstream_streams_stream_consumers_name_next

Fetch pulls the next batch from a consumer and acknowledges it — the request/response way to consume a stream. The hand-off is at-most-once: a message returned here is acked here, so a caller that loses the response does not see it again. Workers needing at-least-once delivery consume the same consumer over the NATS port, where acks are theirs to send. An empty batch after the wait is an empty page, not an error.

Arguments

tools/list declares a type and a description for each field and nothing further. 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. Nothing above is required, so every declared argument is shown rather than a guess at which matter.

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": "post_v1_pubsub_jetstream_streams_stream_consumers_name_next",
         "arguments": {
           "batch": 0,
           "name": "<name>",
           "stream": "<stream>",
           "waitMs": 0
         }
       }
     }'

Values are the operation's own defaults and enumerated values where it declares them, and a <placeholder> where neither source declares one. batch and waitMs hold stand-ins that cannot be spelled that way — JSON gives a number, a boolean and a timestamp no placeholder form — so those values are this page's, not the API's. Neither the door nor the operation 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

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).