# aVenture documentation

> aVenture provides research on private companies, founders, investors, funding rounds, and news through a REST API, CLI, and MCP server. Every surface requires an aVenture account (free or paid): https://aventure.vc/sign-up

## Get started

- [MCP quickstart](https://docs.aventure.vc/mcp): Connect Claude, ChatGPT, or any AI app to the hosted aVenture MCP server with a copy-paste prompt; recommended for desktop, web, and cloud AI apps. In Researchly (https://researchly.chat), choose Connect aVenture under Profile, then MCP servers.
- [CLI quickstart](https://docs.aventure.vc/cli): Install `@aventurevc/aventure-cli` (Node.js 24.18.0 or later) with a copy-paste prompt, sign in, and find a company or person by name, website, or description; recommended for terminals and coding agents.
- [API quickstart](https://docs.aventure.vc/quickstart): Create an API key, find a company or person by name, website, or description, and read its funding rounds.
- [Answer a real question](https://docs.aventure.vc/first-answer): Filter companies, open one record, and read its funding rounds in API, CLI, and MCP form.
- [Identify a company or person](https://docs.aventure.vc/lookup): Experimental. Turn a name plus URL, location, and context clues into the matching record.
- [Identify names in an article](https://docs.aventure.vc/lookup-articles): Experimental. Extract every company and person a news article names and identify each one.
- [Update records with research](https://docs.aventure.vc/research-updates): Experimental. Judge record freshness and queue single or batch research updates.
- [Call MCP tools directly](https://docs.aventure.vc/mcp-tools): Name the operation, place each input, and read tool answers from your own code or prompts.
- [Authentication](https://docs.aventure.vc/authentication): Create an API key and sign in from the CLI or an MCP client.
- [Plans and usage](https://docs.aventure.vc/plans-and-usage): What counts against your plan's allowances and how to upgrade.
- [Pagination and filtering](https://docs.aventure.vc/pagination-and-filtering): Page through results and combine filters.
- [Errors](https://docs.aventure.vc/errors): Interpret error responses, rate limits, and plan usage limits.
- [API reference](https://docs.aventure.vc/api-reference): Every endpoint, parameter, and schema.
- [API operation index](https://docs.aventure.vc/api-reference/llms.txt): Index of API operation pages.

## MCP

- [aVenture data MCP](https://mcp.aventure.vc/mcp): Connect with an MCP client over Streamable HTTP and sign in through the browser with OAuth. A client that asks for an OAuth client ID, or fails with `does not support dynamic client registration`, uses client ID `KL7mINzGk0le0QiD`. Claude Code: `claude mcp add --scope user --transport http --client-id KL7mINzGk0le0QiD --callback-port 6276 aventure https://mcp.aventure.vc/mcp`, then `/mcp` to sign in. A `401` later means the sign-in expired: reconnect the server in the client. An ordinary GET request is not supported.
- [Documentation-search MCP](https://docs.aventure.vc/_mcp/server): Optionally search this documentation through Fern's MCP server. It is separate from the aVenture data MCP.

## Packages and source

- [aVenture CLI source](https://github.com/aventurevc/aventure-cli) and [`@aventurevc/aventure-cli`](https://www.npmjs.com/package/@aventurevc/aventure-cli) on npm.
- [aVenture MCP source](https://github.com/aventurevc/aventure-mcp) and [`@aventurevc/mcp-server`](https://www.npmjs.com/package/@aventurevc/mcp-server) on npm, for running the server locally (rarely needed; most clients use the hosted server).
- [`@aventurevc/api-schemas`](https://www.npmjs.com/package/@aventurevc/api-schemas) provides TypeScript schemas and types.