Keelvar versus Fairmarkit: two sourcing-only tools, and neither issues a purchase order

Keelvar is the deeper optimiser. It sells three named products plus an AI orchestrator: Autonomous Sourcing, Sourcing Optimizer, Rate Manager, and Kai. Sourcing Optimizer is described as advanced eSourcing and bid optimisation: model every scenario before awarding, make award decisions on the full picture, and allow suppliers to compete on more than price, with scenario modelling across cost, risk, sustainability and other constraints at any scale of event. Autonomous Sourcing covers intelligent intake, supplier recommendation, event creation, multi-round bidding, bid evaluation with Kai recommending an award, and reporting. E-auctions are supported in several formats, with the FAQ naming Dutch, English and reverse. That is the deepest scenario-modelling and bid-optimisation capability in this whole category, and the right fit where awarding is genuinely a multi-constraint problem: freight and logistics tenders, multi-plant or multi-lane awards, categories trading cost against risk, capacity and incumbency.

Fairmarkit is the more open and the more upstream. It markets a set of named agents, an Intake Agent, a Supplier Discovery Agent, an RFx Execution Agent and an Evaluation Agent, plus Performance and Compliance, a Supplier Portal and a component called KIT. It covers intake described as capturing compliant and complete requirements at the point of request, RFx at scale from complex to single events, auctions within RFx workflows with public documentation guides for English or classic, Dutch and Japanese formats, side-by-side response analysis with scenario-based award modelling, supplier discovery, a Supplier Network and a Supplier Portal. Its documentation is the strongest in this group and a real reason to shortlist it. Two public sites: buyer documentation with release notes and auction guides, and a developer portal documenting Buyer Public and Supplier Public APIs with API-key authentication, around twenty resource groups, HTTP verbs across GET, POST, PUT, PATCH and DELETE, and a webhooks guide naming concrete events such as request created, RFQ awarded, bid awarded and bid lost. Named integrations are specific rather than vague: SAP S/4 HANA, SAP ECC, SAP Ariba, Oracle and Oracle Cloud ERP, Workday Financials, plus Coupa, ServiceNow, Zip, Amazon Business, SpendHQ, Candex and Supplier.io. Security posture is published: SaaS on Amazon Web Services, SOC 2 compliant and ISO 27001 certified.

The Fairmarkit classification is the closest call in this category and worth being explicit about. It ships an Intake Agent, the same wedge Zip uses, and its developer API exposes a Purchase Orders resource plus sample integration flows named PR intercept and PR create, meaning it reads and writes requisition and purchase order objects in the customer ERP or procure-to-pay system. That is integration plumbing, not a claim to be the system of record: no marketing page claims purchase order issuance or invoice matching. The honest statement is intake plus agentic sourcing, with requisition, purchase order and invoice remaining in your ERP or suite.

Keelvar is the thin record in this pairing, and the cause is disclosure rather than blocking. No Keelvar site refused access. But its integrations page names no specific system at all, referring only to upstream systems, downstream systems and integrating with your procurement tech stack, and it makes no API claim whatsoever. There is no public documentation site. No page states cloud or SaaS in so many words, so even the deployment model is formally unknown despite it plainly being a web platform, and no trust or security page was found. For a product aimed at large enterprises with complex supply chains, naming no integration and publishing no API claim is a real diligence gap, and it is the single biggest practical objection to shortlisting Keelvar blind. One honest note: the one occurrence of Excel on Keelvar pages is Excel as the thing Keelvar replaces, which is not an integration.