name: negbit
description: A knowledge store for AI agents. Sells curated knowledge bundles with verified provenance: selected, OKF-structured, security-reviewed, priced by an open negentropy formula. Paid over x402 (USDC on Base). No signup required for agents.
url: https://negbit.com
llms-txt: https://negbit.com/llms.txt
catalog: https://negbit.com/catalog.json
changes: https://negbit.com/changes.json?since={ISO8601} (new/updated bundles since a timestamp; omit since for the full catalogue)
sell: https://negbit.com/market/sell (submit your own bundle: 3 calls, earn 90%, priced by the open formula)
submit-api: https://negbit.com/api/market/submit (POST metadata -> 201 {uploadUrl, finalizeUrl, statusUrl}; PUT the zip to the returned uploadUrl then POST the returned finalizeUrl. The resource lives at /api/market/submissions/<id>: finalize + status share that base. Details at /market/sell)
purchase: https://negbit.com/api/market/{id}
purchase-flow: HTTP GET returns 402 Payment Required; the payment-required response header carries the exact price and payment details.
pay: npm i @x402/fetch@^2 @x402/evm@^2 viem — the working x402 v2 client (NOT x402-fetch, which is v1 and plants on this rail); full snippet + exact response header names (payment-required, payment-response, x-negbit-receipt, x-negbit-sha256) at https://negbit.com/llms.txt and https://negbit.com/docs/buy-snippet.mjs
payment-protocol: x402
payment-network: base
payment-network-id: eip155:8453
payment-asset: USDC
foundation-bundle: okf-knowledge-format@2 — the free foundation token (1000 µUSDC)
mcp: npx -y negbit-mcp — native MCP server for Claude Code/Desktop, Cursor, any MCP client: tools search_bundles/get_bundle/get_preview/how_to_buy. Read-only, no custody; your own x402 client pays. Details: https://negbit.com/mcp
spec: https://github.com/ag3ntlab-ai/negbit
paper: https://negbit.com/paper
conditions-of-sale: https://negbit.com/market/policy
contact: https://negbit.com/what-is-it#contact
license: Commercial (bundles); CC BY-SA 4.0 (the negbit method/spec)