What it sells
The API for LLM tool use
Business model breakdown
Buyer: who owns the budget?
UnverifiedDeveloper or AI engineering lead building agents.
Workflow: what inputs become what output?
Send an OpenAI-compatible chat completion request with MCP tool refs from the registry (e.g. google-maps); OpenTools runs the tools and returns results, with no personal API keys needed.
Economics: what it saves and how it charges
Charges for tool execution; LLM tokens passed through at cost on one unified bill.
Distribution: how it reaches customers
Early-access waitlist/beta, docs and MCP registry; developer-led.
Funding history and coverage
| Round date | Stage | Amount | Investors | Source |
|---|---|---|---|---|
| — | Y Combinator Summer 2023 | — | Y Combinator | ycombinator.com |
Profiles summarize public reporting and company websites. Business-model notes are MaxBC's reading of that material, not confirmed facts; unknowns are left blank rather than guessed. Updated 2026-10-12.