HumanMirror Nexus lets an assistant discover, quote, run and verify paid third-party tools through a remote endpoint, charging credits only on verified success.
What you can do
Search the Nexus catalog for a machine-callable tool matching a task, or use Magnet as a fallback discovery when current capabilities fall short and record a capability gap if nothing matches. Get a free quote for an Outcome contract, including the verifier, selected tool and success-only credit cost. Execute an Outcome contract and re-verify its result deterministically without spending credits. Route a tool call through Nexus to a selected tool_id, with credits charged per the tool's declared cost.
When to use it
Useful when an assistant needs capabilities it lacks and should find a matching external tool, know the cost before running it, and have results checked by a deterministic verifier. Suited to outcome-based tasks where payment should only follow verified success.
Requirements
A remote streamable HTTP endpoint at humanmirror.fr, reachable over the network. A HumanMirror Nexus API key sent as a bearer token in the Authorization header is required. Nexus credits are needed for paid tool calls and Outcome execution.
Before you install
Requires an API key in the Authorization header, which is a secret. Paid operations spend Nexus credits: nexus_call charges the selected tool's declared cost, and outcome_run charges on verified success, with refunds on failure. Tool calls are routed to third-party HumanMirror tools, so task data is sent outside the assistant.
Connect Authorization token credentials. They are stored privately and never shown on public pages.
Enable the server for the chats that should use its tools.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Use with an agent
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/fr.humanmirror%2Fnexus/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.
Free quote for a verifiable HumanMirror Outcome contract. Describe the objective or provide an outcome_type; the quote returns the deterministic verifier, selected internal tool and success-only credit cost.
Execute a HumanMirror Outcome contract. Credits are charged only when deterministic verification succeeds; failed execution or failed verification is automatically refunded.
Search the HumanMirror Nexus catalog for a machine-callable tool that matches a task. This search is free and does not consume credits.
Parametersqueryrequired
magnet_resolve
Free universal fallback discovery. Call this when the agent cannot satisfy a task with its current capabilities. Magnet returns a matching HumanMirror tool or records an aggregated capability gap in the Machine Demand Graph. This tool consumes no credits.
Parametersqueryrequired
nexus_call
Route a tool call through HumanMirror Nexus. Use nexus_search first, then call the selected tool_id. Successful calls consume the number of Nexus credits declared by the selected tool.
Parametersinputrequiredoptionstool_idrequired
Version history
2
v1.3.4LatestOct 9, 2026
v1.3.3Sep 16, 2026
Score
75%
75% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
Reached in the last 30 daysRequired25 pts
Auth declaredRequired10 pts
Tools listedRequired15 pts
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
License10 pts
Declare a license in the repository or the registry entry.