support stack · standard

Support Stack

For customer-support and CX agents: search, retrieval, speech, and connectors, with a low per-call ceiling and PII handling blocked unless the policy explicitly allows it.

Included in a subscription — see pricing View JSON All stacks

Policy profile — enforced before every spend

The guardrails.

Support Stack policy
Per-call ceiling	$0.02 USDC
Monthly budget	—
Confirm above	$0.5 USDC
Allowed rails	x402 · api_key · free
Blocked flags	pii_processing · financial_action
Attestation floor	seed

What the agent can reach

Capabilities & live candidates.

search · 4 listed
Service	Provider	Rails	Tier
Exa	exa.ai	api_key	probed
Brave Search API	brave.com	api_key	probed
SerpApi	serpapi.com	api_key	probed
Tavily	tavily.com	api_key	probed

web retrieval · 4 listed
Service	Provider	Rails	Tier
Jina AI Reader	jina.ai	api_key, free	probed
Exa	exa.ai	api_key	probed
Brave Search API	brave.com	api_key	probed
Firecrawl	firecrawl.dev	api_key	probed

speech · 0 listed
Service	Provider	Rails	Tier
no listed candidates yet

connector · 1 listed
Service	Provider	Rails	Tier
GitHub API	github.com	oauth, free	seed

Run it next to the agent

Install the stack.

Pull the signed bundle once, cache it, and run pre-flight locally. Refresh policy on an interval; report outcomes back async. No per-call round trip.

MCP · agent-native

# MCP (server: https://mcp.stackbroker.xyz)
get_stack { "slug": "support", "bundle": true }

Bundle · cache locally

curl "https://api.stackbroker.xyz/v1/stacks/support?bundle=1"