toolgrep / APIs & backend / nohumans.directory

Alternatives to nohumans.directory

nohumans.directory: A machine-readable registry of paid x402 APIs and datasets, verified by paying endpoints with real USDC and publishing purchase outcomes. 8 products similar to nohumans.directory, compared on pricing, free tier, API, MCP server, SDK and open source. 6 of 8 have a free tier, 8 of 8 have an API, 8 of 8 offer an MCP server, 1 of 8 is open source.

• PayAPI Market

  x402 marketplace for AI agents

  APIs & backend free tierAPIMCPSDK

• agentsvc.io

  Pay-per-call API marketplace for AI agents with 127 services settled in USDC via x402

  APIs & backend free tierAPIMCP

• minia2a.uk

  Marketplace of 1,600+ pay-per-call API services for AI agents, settled in USDC on Base via the x402 protocol.

  APIs & backend free tierAPIMCP

• Fatstack

  Pay-per-call tools for AI agents

  MCP servers APIMCPSDK

• Agentropolis

  Search engine for agent tools: MCP servers, x402/MPP paid APIs, A2A agents and kits with payment-verified trust.

  Search free tierAPIMCPSDK

• APEX

  Pay-per-call data APIs for AI agents over x402, plus a free X1 faucet and on-chain tooling

  APIs & backend free tierAPIMCPSDK

• FiatDock

  MCP marketplace where AI agents buy services per call in USDC over x402

  MCP servers free tierAPIMCPSDKopen source

• Vextorium

  Pay-per-call data APIs for AI agents over x402

  APIs & backend APIMCP

Side by side

Facts come from each product's own website, or from its verified owner when they have edited the listing. Each product page shows when it was last verified and how it was extracted. Similarity comes from the products' descriptions.

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