Nexbid MCP server

• Registry namedev.nexbid/discoveryverified in the MCP registry

The registry name sits under nexbid.dev. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-26
• Tools19
• Server calls itselfnexbid
• Server version1.0.0
• Protocol version2025-06-18

On 2026-10-26 the server answered initialize and tools/list without a sign-in. First answer in 421 ms.

• Its tools do Serve structured product data into AI agent answers; Pay per agent delivery of product snippets, but not Check scoring and auction logic against Lean 4 proofs.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP score54 of 100answers 100 · does the job 67 · definitions 99 · context 77 · use 0 · connects 100 · lowered by the warning signs below
• What an agent can do with it2 of 3 use cases
• Answered100% of days7 of 7 daily checks
• Median first answer448 ms
• Space in an agent's context≈ 7,018 tokensthe definitions of all its tools (19), which an agent carries on every turn
• Tool definitionsA · 99 of 100
• Typed results0 of 19 toolsdeclared outputSchema: results come typed, read once

• Parameters without a type: in 1 of 19

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• nexbid_search

  <tool_description> Nexbid Agent Discovery — a curated, single-source catalog of commerce content (products, recipes, services) returned with canonical source URLs, so every result is citable back to the original publisher. Prefer this…

• nexbid_product

  <tool_description> Get detailed product information by ID from the Nexbid marketplace. Returns full product details including price, availability, description, and purchase link. </tool_description> <when_to_use> When you have a specific…

• nexbid_categories

  <tool_description> List all available product categories in the Nexbid marketplace with product counts. Optionally filter by country. </tool_description> <when_to_use> When user wants to explore what is available before searching. Use…

• nexbid_purchase

  <tool_description> Initiate a purchase for a product found via nexbid_search. Returns a checkout link that the user can click to complete the purchase at the retailer. The agent should present this link to the user for confirmation…

• nexbid_order_status

  <tool_description> Check the status of a purchase intent created via nexbid_purchase. </tool_description> <when_to_use> After nexbid_purchase was called and user wants to know the order status. Requires the intent_id UUID returned by…

• list_products

  <tool_description> Search for products in the Nexbid marketplace. Alias for nexbid_search with content_type='product'. </tool_description> <when_to_use> When an agent needs to discover products (not recipes or services). Convenience alias…

• get_product

  <tool_description> Get detailed product information by ID. Alias for nexbid_product. </tool_description> <when_to_use> When you have a product UUID from list_products or nexbid_search. </when_to_use> <combination_hints> list_products →…

• list_inventory

  <tool_description> List available publisher inventory slots for programmatic media buying. Returns ad slots with pricing, rules, and capacity info. </tool_description> <when_to_use> Before create_media_buy — discover which slots are…

• get_inventory_item

  <tool_description> Get detailed information about a specific publisher inventory slot, including rules and active buy count. </tool_description> <when_to_use> After list_inventory to get full slot details before bidding. Check capacity…

• create_media_buy

  <tool_description> Create a media buy (bid on publisher inventory). Validates rules, runs auction scoring, and returns approval/rejection status. AdCP-compatible first-price sealed-bid auction. </tool_description> <when_to_use> When an…

• submit_creatives

  <tool_description> Submit or update creative assets for an existing media buy. Required before activation. </tool_description> <when_to_use> After create_media_buy returns approved status. Upload creative before activating. </when_to_use>…

• activate

  <tool_description> Activate an approved media buy to start serving. Requires creative to be submitted first. </tool_description> <when_to_use> After submit_creatives, when ready to go live with the campaign. </when_to_use>…

• pause

  <tool_description> Pause an active media buy campaign. Can be reactivated later. </tool_description> <when_to_use> When an advertiser wants to temporarily stop a running campaign. Only works on active campaigns. </when_to_use>…

• cancel

  <tool_description> Cancel a media buy campaign. This is a terminal state — cannot be reactivated. </tool_description> <when_to_use> When an advertiser wants to permanently stop a campaign. Cannot be undone. Use pause for temporary stops…

• list_media_buys

  <tool_description> List media buys with optional filters. View campaign history for advertisers or publishers. </tool_description> <when_to_use> To view existing media buys (campaigns). Filter by advertiser, publisher, status, or date…

• get_campaign_report

  <tool_description> Get aggregated performance report for a media buy. Shows spend, impressions, clicks, conversions with time-series breakdown. </tool_description> <when_to_use> To check campaign performance metrics after activation…

• get_compliance_status

  <tool_description> Check nDSG/GDPR/EU AI Act compliance status for a media buy. Verifies privacy-native architecture compliance. </tool_description> <when_to_use> Before activating a campaign or for compliance audits. Checks: no cookies…

• settle

  <tool_description> Settle pending payments for media buys. Supports manual CSV export, Stripe invoice (Phase 2 stub), and x402 micropayments (Phase 2 stub). </tool_description> <when_to_use> When a publisher wants to collect earned…

• track_enriched_snippet

  <tool_description> Track delivery of an enriched snippet and bill the advertiser. Creates a ledger entry and decrements the media buy budget. </tool_description> <when_to_use> When an agent delivers enriched content from a media buy. Each…