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The Remote StreamNative MCP Server exposes a wide catalog of tools. Clients can opt into specific capabilities at connection time by setting HTTP headers. This page summarizes the supported flags and feature names.

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Header reference

  • X-MCP-Readonly — set to true when the client only needs read access. The remote server enforces read-only semantics for supported tools and skips operations that mutate resources.
  • X-MCP-Features — provide a comma-separated list of feature identifiers to narrow the tool catalog. When omitted, the server enables discovery for the default feature set, including Pulsar Functions and Orca agents as tools.

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Available feature identifiers

Use these values inside the X-MCP-Features header， can use , to passing multiple tools.

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Combination feature sets

  • all — enables every available capability across StreamNative Cloud, Pulsar, and Kafka.

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Kafka tooling

  • all-kafka
  • kafka-admin
  • kafka-client
  • kafka-admin-topics
  • kafka-admin-partitions
  • kafka-admin-groups
  • kafka-admin-schema-registry
  • kafka-admin-connect

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Pulsar tooling

  • all-pulsar
  • pulsar-admin
  • pulsar-client
  • pulsar-admin-brokers
  • pulsar-admin-broker-stats
  • pulsar-admin-clusters
  • pulsar-admin-functions
  • pulsar-admin-functions-worker
  • pulsar-admin-namespaces
  • pulsar-admin-namespace-policy
  • pulsar-admin-isolation-policy
  • pulsar-admin-packages
  • pulsar-admin-resource-quotas
  • pulsar-admin-schemas
  • pulsar-admin-subscriptions
  • pulsar-admin-tenants
  • pulsar-admin-topics
  • pulsar-admin-sinks
  • pulsar-admin-sources
  • pulsar-admin-topic-policy

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StreamNative Cloud tooling

  • agents-as-tools
  • pulsar-functions-as-tools

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Usage tips

  • Start with a minimal feature list to reduce token usage and improve tool selection accuracy.
  • Add agents-as-tools or pulsar-functions-as-tools only when remote MCP clients should call Orca agents or Pulsar Functions directly.
  • Combine feature groups as needed. For example, X-MCP-Features: streamnative-cloud,pulsar-admin,agents-as-tools enables cloud context utilities, Pulsar administration, and agent tooling while leaving Kafka features disabled.
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