SellerMate MCP¶
Remote MCP server (SSE + Streamable HTTP, one URL) for live Amazon Advertising - plain-English answers on wasted spend, ACOS and TACoS, plus policy-checked campaign actions with admin approvals and a full audit trail. Connect any MCP client to your Amazon Ads account through SellerMate, which holds the Amazon connection so you never touch Amazon Ads API credentials. Read-only by default; every write passes workspace guardrails (budget and bid floors, change-multiplier caps, per-currency limits) and can require a human admin approval. Used by 2,000+ brands and agencies in 20+ countries; 2026 Amazon Ads Partner Awards Technology Innovation finalist.
Server type: Remote (SSE + Streamable HTTP, same URL)
Auth: OAuth 2.1 + PKCE (browser sign-in, no API keys)
Endpoint: https://api.sellermate.ai/mcp/sse
Tools: 50+ (reporting, campaigns, targeting, negatives, automations, dayparting, DSP)
Pricing: Free on every plan
Category: Advertising / Amazon Ads
Built by: SellerMate.AI
Why This Matters for Operators¶
Amazon Ads is where ecommerce operators either compound or bleed margin, and the numbers live in a console nobody enjoys opening. SellerMate's MCP puts the same live data inside the agent that is already writing your recap: ask "which search terms burned budget with zero orders in the last 30 days" and get the actual Search Query Performance rows. The write path is the differentiator: negate wasted terms, shift budgets to winners, and launch campaigns from chat, with every action policy-checked before it runs. The guardrails are server-enforced, not prompts - an agent cannot exceed the budget, bid or change-multiplier limits your workspace sets, and admin approval gates the sensitive moves.
The grant is the security model. OAuth 2.1 with PKCE means no API key to paste or rotate, account-level access control, and no Amazon Ads API credentials anywhere in the loop. Reads are read-only by default and the server caches nothing.
Tools & Capabilities¶
| Tool | What it does |
|---|---|
get_search_term_performance |
Search terms with spend, clicks and orders - find budget burners |
add_negative_keywords |
Negate wasting terms (queued for approval) |
update_campaign |
Adjust budgets, bids and placements - policy-checked |
create_campaign |
Launch a campaign for a product |
get_sqp_report |
Search Query Performance trends |
create_dayparting |
Time-of-day budget rules to stop overnight overspend |
The full surface is 50+ tools across reporting, campaign management, targeting, negatives, automations, dayparting and DSP.
Installation¶
claude mcp add --transport sse sellermate https://api.sellermate.ai/mcp/sse
The client opens a browser window for the SellerMate sign-in on first use. Desktop, Code, Cursor, VS Code, Windsurf and Gemini CLI all take the same URL. ChatGPT connects it as a custom connector. Claude users can also one-click add it from Claude's connector directory.
Configuration¶
No keys. Sign in with a free SellerMate account connected to your Amazon account, approve the scopes, and set your workspace guardrails: budget and bid floors and ceilings, change-multiplier caps, per-currency limits, and which actions require admin approval. Every write is logged with the approving identity for the audit trail.
Business Relevance¶
Amazon marketplace operators get the fastest path from "ACOS jumped last week" to a governed fix, without exporting reports or trusting an agent with unchecked write access. Agencies get per-brand workspaces and an audit trail their clients can inspect. True TACoS math (retail plus ads performance in one view) is the number operators actually need to judge ad efficiency.
Integration with CorpusIQ¶
CorpusIQ's 40+ connectors give agents financial, commerce and marketing reads across QuickBooks, Shopify, Stripe, Google Ads and more. SellerMate adds the Amazon Ads depth: when a recap in CorpusIQ asks why margin moved, a SellerMate-connected agent can answer from live Amazon advertising data and stage governed fixes, complementing CorpusIQ's read-only visibility with policy-gated Amazon ad execution.
Limitations¶
- Amazon Ads only - no Seller Central inventory or order tools (see the two-in-one Amazon Seller Central / Amazon Ads entry in the catalog)
- Admin approvals and guardrails are configured in the SellerMate workspace, not per-agent
- OAuth sign-in requires a browser on first connect