261 pages for refuse.
Titles and paths first, then pages whose text carries it. Each row opens that page as this site last read it.
CLI client
Model Context Protocol · in the page
docs/draft/tools/inspector/cli
…K authorization error). | | `4` | Server unreachable (DNS, connection refused, timeout, `fetch failed`). | | `5` | Tool error: `tools/call` returned `isError: true`, or the tool wasn't found. | | `6`…
Configuration and flags
Model Context Protocol · in the page
docs/draft/tools/inspector/configuration
…crets are for. If the file is missing, unreadable or empty, the store refuses to read or write. | | `MCP_INSPECTOR_SECRET_KEY` | The passphrase itself. Use a generated, high-entropy value. Setting bot…
mcpdo connection client
Model Context Protocol · in the page
docs/draft/tools/inspector/mcpdo
…d on an [elicitation](#elicitation), new calls on that connection are refused until it is answered. A long call does not block other connections. ## Tasks A tool that requires task support is refuse…
Protocol eras
Model Context Protocol · in the page
docs/draft/tools/inspector/protocol-eras
…ed-http.json`. That server acknowledges your first subscription, then refuses every later listen, so subscribing to a second resource trips the badge.  | ## Docker A container image is published to GitHub Container Registry for `linux/amd64` and `linux/arm64`: ```bash t…
Security
Model Context Protocol · in the page
docs/draft/tools/inspector/security
…Binding every interface (`0.0.0.0`, `::` and equivalent spellings) is refused unless you set `DANGEROUSLY_BIND_ALL_INTERFACES=true`. Binding one specific address is allowed without that opt-in, becaus…
Web client
Model Context Protocol · in the page
docs/draft/tools/inspector/web
…cesses on your machine. Binding all interfaces (`HOST=0.0.0.0`) is **refused** unless you set `DANGEROUSLY_BIND_ALL_INTERFACES=true`. Binding a *specific* non-loopback address is allowed with no opt-…
SEP-1036: URL Mode Elicitation for secure out-of-band interactions
Model Context Protocol · in the page
seps/1036-url-mode-elicitation-for-secure-out-of-band-intera
…t are consistent with the security model. For example, a client could refuse to render a URL as a clickable hyperlink in a form mode elicitation request, reducing the likelihood of a user clicking on…
Authorization
Model Context Protocol · in the page
specification/2025-11-25/basic/authorization
…e authorization server does not support PKCE and MCP clients **MUST** refuse to proceed. * **OpenID Connect Discovery 1.0**: While the [OpenID Provider Metadata](https://openid.net/specs/openid-conne…
Authorization Security Considerations
Model Context Protocol · in the page
specification/2026-07-28/basic/authorization/security-considerations
…e authorization server does not support PKCE and MCP clients **MUST** refuse to proceed. * **OpenID Connect Discovery 1.0**: While the [OpenID Provider Metadata](https://openid.net/specs/openid-conne…
Authorization Security Considerations
Model Context Protocol · in the page
specification/draft/basic/authorization/security-considerations
…e authorization server does not support PKCE and MCP clients **MUST** refuse to proceed. * **OpenID Connect Discovery 1.0**: While the [OpenID Provider Metadata](https://openid.net/specs/openid-conne…