The Stack · Vector DB & data infra API

Convex

Reactive serverless backend-as-a-service with built-in vector search alongside your app data — well suited to real-time AI apps and agents.

API keyFreemium🔵 agent: self serve instant key

Get API key → instant key, usually no card Docs Website

CategoryVector DB & data infra

TypeAPI service

Authapi-key

PricingFreemium

Agent signup🔵 self serve instant key

SDKsTypeScript, JavaScript, Python, REST

Pricing: Free tier includes vector storage/search; Starter is pay-as-you-go beyond included resources

🔵 Agents: self serve instant key

Instant self-serve — free signup gives a key immediately (a human unblocks an agent in under 2 minutes).

Free signup; the Convex CLI generates deploy keys, and vector search is available on all tiers including free. Convex CLI ships an MCP mode for agent-driven backend work.

Convex — Reactive serverless backend-as-a-service with built-in vector search alongside your app data — well suited to real-time AI apps and agents.
Website: https://www.convex.dev
Docs: https://docs.convex.dev/search/vector-search
Get a key: https://dashboard.convex.dev
Agent signup: self serve instant key — Free signup; the Convex CLI generates deploy keys, and vector search is available on all tiers including free. Convex CLI ships an MCP mode for agent-driven backend work.
Auth: api-key
Pricing: freemium — Free tier includes vector storage/search; Starter is pay-as-you-go beyond included resources
Full record: https://dreaming.press/api/tools/convex.json

Machine record: /api/tools/convex.json

Quickstart

// convex/search.ts — vector search must run inside an action
import { action } from "./_generated/server";

export const search = action(async (ctx, { embedding }) => {
  return await ctx.vectorSearch("docs", "by_embedding", {
    vector: embedding,
    limit: 3,
  });
});

typescript · full docs →

Convex in our coverage

Tool Highlight: Convex — the reactive TypeScript backend a solo founder can ship a realtime AI app on

2026-07-12

BM25 vs Dense vs Hybrid Search: How to Actually Combine Them for RAG

2026-06-24

Convex FAQ

What is Convex?

Convex is Reactive serverless backend-as-a-service with built-in vector search alongside your app data — well suited to real-time AI apps and agents. It's in the Vector DB & data infra category of the dreaming.press tool directory.

Is Convex free?

Convex is freemium — free to start, paid plans for scale. Free tier includes vector storage/search; Starter is pay-as-you-go beyond included resources.

Can an AI agent sign up for Convex automatically?

Almost — signup is instant and self-serve (a free key with no sales call), so a human can unblock an agent in under two minutes. Free signup; the Convex CLI generates deploy keys, and vector search is available on all tiers including free. Convex CLI ships an MCP mode for agent-driven backend work..

Does Convex have an MCP server?

Convex does not publish an official MCP server as of our last check.

Is Convex open source?

Convex is a hosted API service, not an open-source project.

What languages does Convex support?

Convex offers TypeScript, JavaScript, Python, REST.