nowfound

Alternatives

Products that do what x402 Schema Gate does

Signed acceptance receipts for AI-generated JSON

  1. 1VJ

    2020 · github.com

  2. 2
    P402.io102

    Route, verify, and settle paid API calls with clear traces

    Jan 2026

  3. 3

    Real-time database schemas for AI-IDEs via MCP protocol

    2025

  4. 4

    Prompt injection and token savings - #1 in benchmarks

    Jul 2026 · constellationgate.ai

  5. 5
    x402119

    An open protocol for internet-native payments from Coinbase

    2025

  6. 6

    Data APIs for AI agents & developers — free to start

    Feb 2026

  7. 7

    Turn any bank statement PDF into Excel, CSV or JSON with AI

    May 2026

  8. 8
    Agihalo68

    LLM Router for A.I Agent & Saas with x402

    Jan 2026

  9. 9

    Real-time compliance & security validation for AI coding

    Dec 2025

  10. 10

    New Age. Instant. <$1 Verification.

    2025

  11. 11

    Signed receipts for every AI agent transaction

    10d ago · gatecoreai.com

  12. 12

    The CI gate that says no to unapproved AI code

    18d ago · linebreakapp.com

  13. 13

    See where your LLM budget really goes

    26d ago · 2229577636392.gumroad.com

  14. 14AA

    Hey HN — builder here. Context on what this is: FanStake lets music artists launch their own token on a bonding curve (x*y=k, same mechanic as pump.fun) in about 60 seconds. Fans buy in early, price rises with demand, sell anytime on-chain. 1% platform fee, artists get 10% of supply at launch. Runs on Solana mainnet. The unusual part: an AI agent (Claude-based, running inside a tool called OpenClaw) did most of the development. I'd give direction, it would write the Rust&#x2F;Anchor program, debug the IDL, build the Next.js frontend, deploy to Vercel. Zero to mainnet in roughly 72 hours. The…

    Feb 2026 · fanstake.app

  15. 15OS
  16. 16

    One key for AI, identity verify, and utility APIs

    11d ago · mapleflow.io

  17. 17
    x4021

    Self-funding AI agents via HTTP 402 - no cards, no accounts

    20d ago · x402-ai-agent.space

  18. 18SO

    hello everyone, my first post! AA here, founder of ⌘ Langbase.com — we are a developer platform for building and scaling serverless AI memory agents. I know surveys can be boring, but this one’s different—it’s interactive! That's very much intentional. My team and I have been up for the last 21 hours putting together this report. This was a looot of work, so I hope y'all like it. Introducing … State of AI Agents 2024 report On Langbase, we processed 184 billion tokens and handled 786 million AI agent runs from 36K developers. From all that data plus insights from 3.4K builders who filled out…

    2024 · langbase.com

  19. 19ES

    Are you spending hundreds of dollars a month on AI coding costs? I built European Swallow AI, an API that uses reasoning models (Claude, Deepseek) for thinking and cheaper specialized coding models (Qwen, Grok) to write code, so you can save token costs while still getting high quality code. With an OpenAI formatted endpoint you can try European Swallow in Cursor, Typing Mind, Xibe AI and your own custom apps. During testing, European Swallow scored 80.5% on Big Code Bench and over 90% on the HumanEval+. It averaged $2.60 per million tokens compared with the $15 per million output tokens of…

    Oct 2025 · europeanswallowai.com

  20. 20GZ

    I made an API mocking tool that imports a schema, populates fake data, then runs a local server. This is helpful for testing APIs or advanced prototyping. A demo video is here: https:&#x2F;&#x2F;www.loom.com&#x2F;share&#x2F;abad2cdf325e4e0b9addea1e14406166?... There’s two fun things about this tool 1. the complete lack of configs and schema annotations. i.e. you don’t need to learn faker-js. You just need your existing GraphQL schema and to to swap out the server URL in your frontend code. 2. the depth. Your fake objects have relationships to other fake objects. And in proxy mode, real…

    2023 · github.com

  21. 21

    Verify your AI gateway. Prove you’re getting the real model.

    Aug 2026 · xtokenchecker.com

  22. 22
    Tracea2

    Verify any AI agent Identity, legal proof & x402 payments

    30d ago · tracea.online

  23. 23

    Check your website against the EU's AI disclosure rules

    9d ago · swornmark.com

  24. 24IB

    Hi all, I wanted a robust way to keep track of my receipts without needing to keep them in a box and so i found paperless - but the existing paperless ai projects didn't really convert my receipts to usable data. so I created a fork of nutlope's receipthero (actually it's a complete rewrite, the only thing that remains over is the system prompt) The goal of this project is to be a one stop shop for automatically detecting tagged docs and converting them to json using schema definitions - that includes invoices, .... i can't think of any others right now, maybe you can? If you do please make…

    Feb 2026

Ranked by how close each launch is in meaning, then by votes. Refine with a description →