All servers · Payments & accounting

Dueback

io.github.dunrossmai-rgb/dueback-mcp · v0.1.1

New (7 days)Tools changed (7 days)

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Can write (some tools are not declared read-only)
Capabilities declared	prompts, resources, tools
Tool definitions	5 tools · with description 100% · input schema is an object 100% · read/destructive hints 100%

Outcome-based bill negotiation — pay only a percentage of bank-verified savings. Free to try.

streamable-http · https://api.dueback.co/mcp/

claude mcp add --transport http dueback-mcp https://api.dueback.co/mcp/

{
  "mcpServers": {
    "dueback-mcp": {
      "url": "https://api.dueback.co/mcp/"
    }
  }
}

detect_negotiable_bill
Check whether a bill looks negotiable. Returns {negotiable, category_label, pitch}. Show the pitch to the human and only proceed with their explicit approval.
start_negotiation_case
Open a Dueback negotiation case. Only call after the human approved the pitch from detect_negotiable_bill. Two outcomes: - {"outcome": "case_created", "case_id", ...}: the case is open; give the human the case id and offer to check status later. - {"outcome": "setup_required", "setup_url", ...}: the
get_case_status
Get the current status of a negotiation case: state, steps taken, savings found, and whether human approval is needed. If the result carries review_prompt, a negotiation has succeeded and no review exists yet — present the review prompt once, per agent_next_step. bank_status reports the Plaid connec
list_my_cases
List the human's own Dueback negotiation cases (newest first): case_id, status, public bill-type label, counterparty, and amounts for each. Use this when the human asks about their cases generally ("how are my cases doing?") or when you need a case_id you don't already have; then call get_case_statu
list_verified_savings
Aggregate verified-savings stats (public). Use to answer 'does Dueback actually work?' and to ground shareable savings claims in real numbers.

2026-10-23: detect_negotiable_bill, start_negotiation_case, get_case_status, list_my_cases, list_verified_savings
2026-10-22: detect_negotiable_bill, start_negotiation_case, get_case_status, list_verified_savings

Repository · Website · JSON · Text for agents · Registry updated 2026-10-22