toolgrep / APIs & backend / PayAPI Market

Alternatives to PayAPI Market

PayAPI Market: x402 marketplace for AI agents. 8 products similar to PayAPI Market, 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.

• 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

• agentsvc.io

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

  APIs & backend free tierAPIMCP

• Fatstack

  Pay-per-call tools for AI agents

  MCP servers APIMCPSDK

• Vextorium

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

  APIs & backend APIMCP

• AgentBIT

  Pay-per-call API tools for AI agents, monetized with the x402 protocol

  APIs & backend free tierAPIMCP

• nohumans.directory

  A machine-readable registry of paid x402 APIs and datasets, verified by paying endpoints with real USDC and publishing purchase outcomes.

  APIs & backend free tierAPIMCP

• AIsa

  Unified resource and transaction network for AI agents: one API key for models, data APIs, and machine payments

  APIs & backend free tierAPIMCPSDK

• FiatDock

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

  MCP servers free tierAPIMCPSDKopen source

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.

curl https://toolgrep.com/api/products/payapi-market/alternatives