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AI · alternatives · 2026

24 alternatives to Anvil SDK

The Next.js of AI backends

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 2 we have checked on their own sites, 2 of them free or with a free tier.

  1. 1
    Anvil▲175

    Run a fleet of parallel Claude Codes

    Mar 2026 · anvil.fm · its alternatives →

  2. 2
    InsForge▲622

    We built InsForge because we wanted to use pure prompts to build a production-grade app faster. In practice, AI isn’t reliable enough when generating code or configuring backend pieces like schema, RLS, auth, or functions. Postgres MCP and Supabase MCP are a good starting point, but they felt more like API wrappers for agents than something designed to guide AI safely through backend tasks. So we built our own MCP server on top of Postgres and added a set of context-engineering tools to make prompt-driven workflows more predictable. It gradually turned into a Postgres-based BaaS. Key…

    Mar 2026 · insforge.dev · its alternatives →

  3. 3

    Power your AI agents with enterprise-ready tools via MCP

    2025 · merge.dev · its alternatives →

  4. 4
    Axe API▲198

    The next-generation Rest API framework

    2023 · axe-api.com · its alternatives →

  5. 5

    Hey HN! We built Notte, a browser infrastructure and agents platform. Many of our users automate UI workflows or extract data from sites that don’t have APIs. In practice, we noticed that once an agent understands how a site works, parts of the task can often run without a browser by interacting with the same network requests the site uses. So we built Anything API: describe a browser task, and our agent explores the site, builds a function, tests it against your description, and deploys a callable REST endpoint. No infra to manage. How the build works: - Describe the task (best results come…

    Mar 2026 · anything.notte.cc · its alternatives →

  6. 6

    Connect any API to any AI agent

    May 2026 · mcp-bridge.ai · its alternatives →

  7. 7

    5000+ MCP servers AI tools, 1 line of code

    2025 · toolsdk.ai · its alternatives →

  8. 8AF
  9. 9
    Anvil▲3

    Open-source AI coding agent with per-stage LLM routing

    May 2026 · github.com · its alternatives →

  10. 10
    Apidog▲570

    Development teams often struggle with using multiple tools like Postman and Swagger for API design, development, and testing. This fragmented approach leads to outdated API specs and chaotic collaboration. So we built Apidog: a single, unified API platform for team collaboration. It has a beautiful interface that makes it easy to create API spec, generate request data from API spec, validate responses, create mock data, orchestrate test scenarios, and publish API documentation. Apidog = Postman + Swagger + Mock + JMeter.

    2024 · apidog.com · its alternatives →

  11. 11
    BuildShip▲420

    Low-code visual backend builder, powered by AI

    2023 · buildship.com · its alternatives →

  12. 12
    mcp-usefree tier, from $25/mo▲581

    Hi HN, Luigi here. We maintain mcp-use an open-source TypeScript framework for building MCP servers and MCP Apps: https://github.com/mcp-use/mcp-use MCP is now (finally) stateless so we rewrote mcp-use v2 from scratch for the 2026-07-28 MCP spec revision: https://blog.modelcontextprotocol.io/posts/2026-07-28/ Thanks to the rebuild: - Throughput: +27% → from 8,615 to 10,982 median ops/sec - Cold launch: 2.2x faster → from 151.6 ms to 68.1 ms - Clean install: 82% smaller → from 404.6 MiB to 74.4 MiB Benchmark with methodology here:…

    2025 · manufact.com · its alternatives →

  13. 13
    Axel▲271

    Todoist for AI coding agents

    Feb 2026 · axel.build · its alternatives →

  14. 14

    Build and enrich B2B lists by chatting to your agent

    Aug 2026 · anysite.io · its alternatives →

  15. 15

    Very excited to share Anvil. I built Anvil to take back control when working with parallel coding agents. It comes with one click worktree isolation, and first class spec support. Claude Code and similar coding TUIs are very eager to get into writing code, even before their human baby sitter fully understands the implication of what they are about to build. The core insight with Anvil is that it is much easier to write high quality code which matches the author's intent after iterating on an external plan with your agent. Align on the architecture, implementation, and verification strategy…

    Mar 2026 · github.com · its alternatives →

  16. 16
    Kastrafree tier, from $19.99/mo▲332

    Hi HN, Fernando and I built Kastra. Kastra intercepts AI agent tool calls and evaluates them against deterministic policies before they execute. We built this product to control pre- and post-inference workloads. This is aimed at developers using coding agents like Claude Code, Codex, Cursor, and OpenClaw. Kastra pushes an allow, hold, and deny decision before the action runs. You can build these policies in plain English from the web app. The interception engine evaluates the tools, targets, and parameters of every action at sub 1ms at a scale of billions of interceptions per day. We also…

    Jul 2026 · kastra.ai · its alternatives →

  17. 17

    Hi HN! I’m Tony, co-founder of Inngest. I wanted to share AgentKit, our Typescript multi-agent library we’ve been cooking and testing with some early users in prod for months. Although OpenAI’s Agents SDK has been launched since, we think an Agent framework should offer more deterministic and flexible routing, work with multiple model providers, embrace MCP (for rich tooling), and support the unstoppable and growing community of TypeScript AI developers by enabling a smooth transition to production use cases. This is why we are building AgentKit, and we’re really excited about it for a few…

    2025 · github.com · its alternatives →

  18. 18

    Vibe-code MCP-ready tools for any AI Agent

    2025 · its alternatives →

  19. 19

    Turn any API into an MCP server for AI agents

    Jun 2026 · apitomcp.ai · its alternatives →

  20. 20

    New tools for building agents and tools

    2025 · openai.com · its alternatives →

  21. 21

    Open-source foundation of ToolJet AI - the enterprise app generation platform for internal tools, dashboards, business applications, workflows and AI agents. Build visually, from a prompt, or from Claude Code, Codex and Cursor over MCP 🚀 - Release v2.0.0 · ToolJet/ToolJet

    2023 · github.com · its alternatives →

  22. 22WM
  23. 23
    Anvil▲80

    A better way to build Python web apps

    2023 · anvil.works · its alternatives →

  24. 24AT

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →