# Middleman > Middleman helps buyers and suppliers turn incomplete industrial intent into evidence-backed, permissioned work. Middleman is a beta product focused on industrial automation spares. Public research and product copy do not prove live supply, price, traction, authority, or completed transactions. Public agent interfaces are read-only and cannot contact suppliers or make commitments. ## Core pages - [Product](https://middlemantechnologies.com/): Public product overview and human-controlled onboarding route. - [Middleman for agents](https://middlemantechnologies.com/agents): Bring your existing agent and source systems. - [Company onboarding](https://middlemantechnologies.com/get-started): New company, existing account and resume paths. - [Skill catalogue](https://middlemantechnologies.com/agents/skills): Buyer, supplier, get-started and setup-check workflows with copyable prompts and Markdown downloads. - [Vision](https://middlemantechnologies.com/vision): Long-term mission and current proof boundary. - [Pricing](https://middlemantechnologies.com/pricing): Monthly Intelligence credits plus success fees earned only on agreed completed outcomes. - [Insights](https://middlemantechnologies.com/insights): Source-backed industrial sourcing and agent-evaluation articles. ## Published insights - [How to make supplier-feed retries safe](https://middlemantechnologies.com/insights/design-supplier-feed-ingestion-for-replay): Supplier APIs time out, pages move and jobs retry. A trustworthy ingestion system can replay the same delivery without creating false stock, while preserving genuine price and availability changes as new evidence. - [The connected-machine RFQ needs a data schedule](https://middlemantechnologies.com/insights/the-connected-machine-rfq-needs-a-data-schedule): The EU Data Act gives users of connected products new access and sharing rights. Buyers still need to specify the data, interface, retention, permissions and acceptance test before they award the equipment contract. - [The listing trap: why industrial buyers lose time on stock that does not exist](https://middlemantechnologies.com/insights/a-listing-is-a-lead-not-supply): A product page is useful evidence of a possible route. It is not proof of present stock, usable condition or authority to sell. Here is how to turn a stale listing into a decision without letting it become a false promise. - [Before you search: write the requirement a supplier can answer](https://middlemantechnologies.com/insights/resolve-the-object-before-you-search): The fastest obsolete-part search often begins away from the search box. A useful requirement resolves the object, operating context, failure, deadline and substitution authority before it asks the market for an answer. - [Seven metrics for an industrial sourcing pilot that is meant to survive contact with reality](https://middlemantechnologies.com/insights/seven-metrics-for-an-industrial-sourcing-pilot): Logins, searches and messages can make a pilot look busy without making sourcing better. Measure whether requirements become answerable, routes become credible and operators reach better decisions without losing control. - [How to evaluate an industrial sourcing agent before it contacts the market](https://middlemantechnologies.com/insights/the-evidence-ladder-for-industrial-sourcing): A polished answer is not evidence that an agent can source safely. The useful test is an end-to-end benchmark built from messy requirements, decaying supply claims, tool use, authority boundaries and the decision an operator actually has to make. ## Agent interfaces - [OpenAPI](https://middlemantechnologies.com/openapi.json): Public read-only HTTP API. - [First canonical product](https://middlemantechnologies.com/api/v1/products/siemens/6ES7214-1AG40-0XB0): Supplier-independent identity for the first Market 1 product. - [Observed market data](https://middlemantechnologies.com/api/v1/products/siemens/6ES7214-1AG40-0XB0/offers?country=ES¤cy=eur): Timestamped evidence only; never a firm quote or reservation. Access is bearer-gated during private beta and becomes public only after supplier rights are approved. - [API catalog](https://middlemantechnologies.com/.well-known/api-catalog): RFC 9727 discovery. - [MCP server card](https://middlemantechnologies.com/.well-known/mcp/server-card.json): Public read-only MCP tools. - [A2A Agent Card](https://middlemantechnologies.com/.well-known/agent-card.json): Public read-only A2A 1.0 service. - [Agent authentication](https://middlemantechnologies.com/auth.md): WorkOS service-auth registration for a bounded delegated-identity check. - [Agent Skills](https://middlemantechnologies.com/.well-known/agent-skills/index.json): Integrity-addressed usage guidance. - [Capability catalog](https://middlemantechnologies.com/.well-known/ai-catalog.json): ARD discovery manifest. Send `Accept: text/markdown` when fetching Product, Vision, Pricing, Insights, or an Insight article to receive Markdown instead of HTML.