# MakeCallable
> Make your API callable by AI agents

Paste OpenAPI, get a hosted MCP server for Claude and Cursor, and measure which agent calls turn into revenue — without rewriting your API.

## Product

- Paste OpenAPI JSON → hosted Streamable HTTP MCP URL
- Bearer apiKey required on /mcp/<publicKey>
- Proxy to your upstream base URL + secret
- Call log, top tools, 7-day series, manual GSV / revenue tagging
- Capped early access (default 50 seats) with waitlist when full
- Auth + Postgres on Supabase EU (eu-central-1)

## Getting Started

1. Sign up at https://makecallable.com/login while seats remain (join the waitlist if the cap is full).
2. Create a project, paste OpenAPI JSON, and set the upstream base URL + optional secret.
3. Copy the project's Streamable HTTP MCP URL (https://makecallable.com/mcp/<publicKey>) and API key.
4. Install in your client with Authorization: Bearer <apiKey> — see https://makecallable.com/agents for per-client steps.
5. Ask the agent to list tools or call one real operation; confirm the call appears in the project log.
6. When an agent-driven outcome closes, tag a revenue / GSV event on the project.

## Primary URLs

- Home: https://makecallable.com/
- Agents: https://makecallable.com/agents
- Docs: https://makecallable.com/docs
- Blog: https://makecallable.com/blog
- Login: https://makecallable.com/login
- This file: https://makecallable.com/llms.txt

## Support

- Email: hello@makecallable.com

## Docs

- [Quickstart](https://makecallable.com/docs/quickstart): Claim a seat, import OpenAPI, install the MCP URL, and log your first agent call.
  - Markdown: https://makecallable.com/docs/quickstart/raw
- [OpenAPI import](https://makecallable.com/docs/openapi-import): What your OpenAPI JSON needs — and what you don’t have to change for agents.
  - Markdown: https://makecallable.com/docs/openapi-import/raw
- [Upstream auth & base URL](https://makecallable.com/docs/upstream-auth): Point MakeCallable at your API with a base URL and optional upstream secret.
  - Markdown: https://makecallable.com/docs/upstream-auth/raw
- [Install Cursor, Claude, ChatGPT](https://makecallable.com/docs/install-clients): Connect the hosted Streamable HTTP MCP URL with Bearer auth — see /agents for the full client matrix.
  - Markdown: https://makecallable.com/docs/install-clients/raw
- [Caps & waitlist](https://makecallable.com/docs/caps-waitlist): Why seats are capped, what happens when they’re full, and how the waitlist works.
  - Markdown: https://makecallable.com/docs/caps-waitlist/raw
- [Troubleshooting imports](https://makecallable.com/docs/troubleshooting): Stuck OpenAPI imports, missing tools, auth errors, and blocked base URLs.
  - Markdown: https://makecallable.com/docs/troubleshooting/raw
- [FAQ](https://makecallable.com/docs/faq): Plain-language answers for product owners and engineers sharing a seat.
  - Markdown: https://makecallable.com/docs/faq/raw

## Blog

- [OpenAPI to hosted MCP without rewriting your API](https://makecallable.com/blog/openapi-to-hosted-mcp): Paste OpenAPI JSON, get a Streamable HTTP MCP URL for Cursor and Claude — keep the REST API you already ship.
- [How to measure agent revenue (GSV) from MCP tool calls](https://makecallable.com/blog/measure-agent-revenue): Agent traffic only matters if you can attribute outcomes. Log every proxied call, then tag revenue when the job closes.
- [Install a remote MCP server in Cursor, Claude, and ChatGPT](https://makecallable.com/blog/install-mcp-cursor-claude-chatgpt): One hosted Streamable HTTP URL and a Bearer API key — install in Cursor or Claude; ChatGPT custom MCP is not supported in MVP.

## MCP

- Transport: Streamable HTTP
- Path: https://makecallable.com/mcp/<publicKey>
- Auth: Authorization: Bearer <apiKey>
- Per-client install guides: https://makecallable.com/agents

## Out of MVP scope

- YAML OpenAPI import
- OAuth 2.1 MCP broker
- Password / social login (magic link only today)
- Billing / orgs / unlimited scale
- Product CLI / skills library / first-party REST tools API