Marcel Inside
By buyer role
HVAC diagnostic infrastructure for software, AI agents and service teams
Four integration paths built on the same sourced corpus — REST, MCP, Harness sessions, and strict SKU provenance. Pick the surface that matches your stack, not a generic chatbot wrapper.
HVAC MCP server for AI agents
Expose manufacturer-grounded tools on mcp.askmarcel.app so Claude, ChatGPT, or your internal agent can look up codes, diagnose, and abstain when the manual does not apply.
View solutionFSM / CMMSField service & CMMS integrations
Add fault-code lookup, model/SKU resolution, and sourced REST responses to work orders — without rebuilding an OEM corpus in your CMMS.
View solutionSupport & SAVHVAC support automation
Deflect tier-1 calls and chat tickets with sourced answers, not invented part numbers. Escalate with citations your senior techs can trust.
View solutionDevelopersHVAC error code API
REST lookup for 400k+ fault codes with manufacturer references. v1 for broad search, v2 when you must cite an exact manual or abstain.
View solutionGuided diagnosticsHVAC diagnostic Harness
Run guided sessions with model/SKU context, an intervention journal, and explicit abstention when no safe check applies.
View solutionBefore you choose a use case
Same platform, two proofs
API & MCP overview
Compare REST v1/v2, MCP tools, Harness Beta, quotas, and which surface to sell to your customers.
HVAC-Bench & corpus
Measured accuracy on real fault codes — not marketing claims. See the benchmark before you commit engineering time.
Integration resources
B2B guides on abstention policy, HVAC-Bench methodology, build vs buy, and pilot outcomes.