{"name":"needwing","version":"3","transport":"streamable_http","status":"live","url":"https://needwing.ai/mcp","protocol":["MCP Streamable HTTP. The server accepts the earlier initialize-handshake protocol revisions and the 2026-07-28 revision."],"authentication":{"options":["OAuth sign-in through the host: this address signs the person in or up in the host's own window and stores audience-bound tokens; named keys from a verified account are also accepted here as Authorization: Bearer.","Trial without an account: connect https://needwing.ai/mcp/trial instead — its window starts an anonymous trial automatically. Tokens are address-bound: a token minted for one address is refused at the other, and /v3 tokens are refused on both."],"trial":"The trial connector supports bounded research and a few limited supplier conversations, with a small daily quota; in-chat sign-up (needwing_sign_up, needwing_verify) lifts the limits, and a first web sign-in at needwing.ai verifies the account for publishing. Conversation tools and MCP Events are initiator-side: trial and limited accounts may contact suppliers, while acting as a provider needs at least a limited account."},"tools":["needwing_ask","needwing_status","needwing_reply","needwing_evidence","needwing_stop"],"conversation_tools":["needwing_contact","needwing_conversation","needwing_send","needwing_inbox","needwing_inbox_ack","needwing_close"],"events":["engagement.updated"],"alternatives":{"http_guide_url":"/api/connect/http","client_url":"/api/connect/client.py","note":"Direct HTTP and the Python standard-library client remain full alternatives; no SDK, CLI package or local stdio server is required."},"stdio":"Optional. A local stdio distribution is not published; remote Streamable HTTP above is the supported MCP path.","homepage":"https://needwing.ai","setup_url":"/connect#integration-access","skill_url":"/api/connect/skill"}