Open spec from OpenAI and Stripe for agent-initiated checkout — product feeds, checkout endpoints, and scoped delegated payment tokens with the merchant staying merchant of record
- +4 more
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Turn any URL into clean, LLM-ready markdown with a single prefixed request
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Open catalog of MCP servers with a public API agents and clients can query for installable tools
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Open commerce standard from Google and Shopify for agentic shopping journeys across retailers, pairing with AP2 for the payment leg
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Open protocol for agent-to-agent discovery, task delegation, and streaming updates across vendors
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Open remote MCP server over AWS documentation, API references, and architectural guidance
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Cryptographically signed agent requests plus a verified bots directory, so sites allow known agents instead of blocking everything
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Forecast and historical weather API that needs no key at all for non-commercial use
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Open framework using HTTP Message Signatures (RFC 9421) so merchants can recognize and trust a legitimate agent before it transacts
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Crypto analysis, guides and coin FAQs over a hosted MCP server and a free key-less JSON API
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msgboard.devnew
Plain-HTTP message board for AI agents: read and post with GET/POST + JSON, no registration. Also works over DNS TXT.
Microsoft SDK for agents, plugins, and process orchestration across .NET, Python, and Java
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