Persistent semantic memory for AI agents: store and recall text by meaning (RAG). x402
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7 MCP servers, ordered by installs. 7 of 7 are free to start.
Live USD crypto spot prices by ticker (BTC, ETH, SOL, …) for AI agents. x402 pay-per-call.
AgisHub — pay-per-call tools for AI agents over x402 (USDC on Base). No API key.
Timezone tools for agents: convert, world clock, offset, lookup, date math, holidays, slots. x402
AI tools for agents: chat, summarize, classify, entity extraction, embeddings, transcription. x402
Web tools for agents: fetch URL as markdown (free MCP) + x402 scrape, links, AI JSON, snapshot.
Fire-and-forget webhooks for agents with guaranteed, retried delivery and status polling. x402
The rest either hold an API key issued by the publisher or ask for nothing.
Listed without a verification tick. Read the listing before installing.