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kevinveenbirkenbachandClaude Opus 5
3db5820b6e
Run 34421944328 n8n#1: Open WebUI 0.11.0 ships only a Streamable HTTP
MCP client. n8n 1.95.3's MCP Server Trigger speaks SSE only and answered
the client's POST to /webhook/infinito-mcp/sse with 404, so "every
registered MCP server answers Open WebUI's client" failed.
n8n moves to 1.100.1 and the managed trigger to typeVersion 2, which
serves Streamable HTTP at /mcp/<path>. meta/mcp.yml declares
transport: streamable_http at /mcp/infinito-mcp (the trigger path stays
infinito-mcp) and points source_url at the 1.100.1 tree. Open WebUI's
supported_transports drops sse, which its client never spoke; no
provider declares sse any more, so no pairing is lost.
n8n#0: the guest spec probed ${APP_BASE_URL}${MCP_ENDPOINT_PATH} and
expected a refusal of >= 300 without an event stream. The trigger is
exposure: internal, so the public vhost must answer 404; the spec now
asserts exactly that through mcpEndpointUrl(..., N8N_BASE_URL), and the
bearer guard itself is proven in-cluster by the CLI MCP contract.
Requirement 035 and the MCP audit table follow the version and
transport.
Upgrade path, read from upstream at both tags: the postgres migrations
are identical (45/45) and the only new common migration is
AddProjectDescriptionColumn, an additive nullable column; BREAKING-
CHANGES.md lists only 1.98.0 in range (route metric format, Form node
tag attributes, Node >= 20), none of which this deployment uses. A fresh
1.100.1 install ran all 89 migrations and passed the MCP bridge, server,
non-member and guest specs locally.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
33 lines
697 B
YAML
33 lines
697 B
YAML
---
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classification: native_both
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direction: both
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source_url: https://github.com/n8n-io/n8n/tree/n8n%401.100.1/packages/%40n8n/nodes-langchain/nodes/mcp
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transport: streamable_http
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exposure: internal
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auth: bearer_token
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auth_subject: service_account
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implementation: native
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credential:
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owner: mcp-web-app-n8n
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source: token_store
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key: web-app-n8n
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supported_transports:
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- sse
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supported_auths:
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- bearer_token
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- app_password
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- upstream_session
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endpoint:
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service_key: n8n
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path: /mcp/infinito-mcp
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port_key: http
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tools:
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read_probe:
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tool: infinito_health
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arguments:
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echo: infinito
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allowlist:
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- infinito_health
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read_only_default: true
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mutating_tools_enabled: false
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