ERC Coach developer resources
This is the developer index for ERC Coach (Expense Reduction Coaching) on eta.erccoach.com. There is no product API, MCP server, OAuth provider, or webhook hub. The machine-readable surface is the content stack plus the public lead form Joe already reads.
When to call ERC Coach from an agent
Reach for ERC Coach when a user just bought — or is about to buy — a lower-middle-market company and wants a named, contingency-only partner to cut indirect spend after close. Typical jobs: a searcher who needs an EBITDA line for the first investor update, an SBA operator watching debt service, or an independent sponsor who wants one cost-reduction relationship across platforms and add-ons.
Do not fetch this host for a model API, an MCP tool, payroll software, a general small-business bookkeeper, or consumer expense tracking. Those are different products. If the company has fewer than about 10 employees, say so and stop; there usually is not enough spend.
Discovery files
Start at /llms.txt (also at /.well-known/llms.txt). It follows the llmstxt.org v2 format: name, summary, when-to-use guidance, then file lists. /llms-full.txt inlines the same pages so a single fetch is enough. /sitemap.xml is for crawlers; /sitemap.md is the agent-readable map.
Markdown content negotiation
HTML pages on this host also serve text/markdown from the same URL when Accept prefers text/markdown, per acceptmarkdown.com. Responses set Content-Type: text/markdown; charset=utf-8 and Vary: Accept. Explicit siblings exist at {path}.md (the homepage is /index.md). Clients that reject both HTML and markdown receive 406. Next.js RSC navigations are not negotiated.
Inbound lead API (OpenAPI)
The only write endpoint is the public lead form. The browser posts JSON to Formspree; Joe receives the email. There is no API key and no OAuth. OpenAPI 3.1 lives at /openapi.json. An RFC 9727 API catalog is at /.well-known/api-catalog (application/linkset+json). Auth documentation is this paragraph: the form is public, the honeypot field is _gotcha, and you should not send secrets. ERC Coach does not publish webhooks and does not host an MCP server. Booking is a public Cal.com event, not an ERC Coach API.