MCP Server for Z.AI - A Model Context Protocol server that provides AI capabilities
FerryCat is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
What it does
Contract-driven cross-host AI agent handoff & review bus over MCP and SQLite WAL
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user ferrycat-mcp '--' npx -y ferrycat
# 2 — ask your agent for something these tools do
# dispatch_contract, poll_next_task, fulfill_contract and 5 more
FerryCat costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. This one runs on your machine: your client starts FerryCat as a process under your own user, with your files and your network, so the tool surface below is what it can do to your computer rather than to a server somewhere else. Its scan result is on the Security tab — read the surface before you approve it.
This is a public server: you run it yourself and this marketplace is not in the path. You need Node.js — the current LTS (24) is the safe choice; npx comes with it. Claude Code registers it in one command; --scope user makes it available in every project. The '--' is in quotes so that PowerShell passes it on.
claude mcp add --scope user ferrycat-mcp '--' npx -y ferrycatReconnect, or start a new session, and the tools appear in the model’s tool list.
One config entry your client uses to start the process locally. A local server runs with your file system and your network, which is why it is priced without metering.
8 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
Read from its source code. A server that builds its tool list when it starts can list more tools than this.
Dispatch a task or code review contract to another local AI agent host via the shared SQLite WAL mesh. ### Purpose Registers a new contract in SUBMITTED status with full-file SHA-256 fingerprint snapshots of all target files, establishing an immutable baseline for cross-host verification. ###…
No parameter schema on file.
Atomically claim the oldest pending SUBMITTED contract assigned to this agent and verify local file fingerprints. ### Purpose Retrieves and claims next available contract work for the current agent, transitioning it from SUBMITTED to CLAIMED. ### Usage Guidelines - When to use: Call periodically…
No parameter schema on file.
No parameter schema on file.
Strictly read-only query of contracts, execution progress, outputs, diagnostic counters, and failure causes. ### Purpose Provides comprehensive observability into the multi-agent mesh state without acquiring database locks or mutating rows. ### Usage Guidelines - When to use: - Check whether a…
No parameter schema on file.
Hand a CLAIMED contract back to the queue tail as SUBMITTED with a fresh queue window. ### Purpose Allows an agent holding a claimed task to safely release ownership back to the queue without failing or aborting the task. ### Usage Guidelines - When to use: Use when your agent claimed a task by…
No parameter schema on file.
Heartbeat renewal for long-running execution: restarts the active execution window of a CLAIMED contract. ### Purpose Prevents execution timeout during deep reasoning, extensive test execution, or complex multi-step refactoring by resetting the execution clock. ### Usage Guidelines - When to…
No parameter schema on file.
Explicitly mark a CLAIMED contract as terminal FAILED with a mandatory failure reason. ### Purpose Immediately terminates a claimed task that cannot be completed, recording actionable diagnostic reasons and freeing the requester from waiting for the execution TTL to expire. ### Usage Guidelines…
No parameter schema on file.
Read-only pre-flight consistency check (ADR-0004): audits on-disk pointer files against the baseline SHA-256 snapshot. ### Purpose Enables agents or automated scripts to verify that on-disk files match the contract's dispatched baseline before calling fulfill_contract, preventing accidental…
No parameter schema on file.
- Every tool, no call limit
- No card, and mcprush charges nothing for it
- Source published under MIT
- Runs on your machine — nothing of it reaches our gateway
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install FerryCat or to call it, at any volume.
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
| Term | Level | What it prices | Points |
|---|---|---|---|
| capability-exposure | moderate | capability blast radius (moderate) — client exposure if the model is manipulated | −3 |
| verification-discount | repo | publisher verification (public source) — no provenance, but the source is public and inspectable | −1 |
| coverage-honesty | source | inspection depth (source) — how much of the target the scan could see | −0 |
What the scan could actually read
A grade is only as meaningful as its coverage, so the scanner publishes its own depth before it publishes its result.
Tools were statically extracted from the published source (8 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command "npx -y <package>".
Capability — what it could do if the model were manipulated
Tags derived from each tool’s schema and the implementation, not from what the tool calls itself. moderate is the level these add up to.
| Tool | Capability tags | Why the tag was assigned |
|---|---|---|
| dispatch_contract | no tags | |
| poll_next_task | no tags | |
| fulfill_contract | no tags | |
| inspect_mesh_state | no tags | |
| release_contract | no tags | |
| extend_ttl | no tags | |
| fail_contract | no tags | |
| verify_contract | no tags |
Toxic-flow graph
The lethal trifecta, checked as a graph rather than as a checklist: untrusted input, a sensitive source and an external sink have to meet before there is a path worth worrying about.
The public result for this release does not print the flow graph, so there is nothing to show here. That is not the same as "no paths were found": what the scan did read is above, under coverage.
Supply chain and provenance
This is the first scan of this surface here, so there is nothing yet to compare it against.
Every result on this tab comes from one deterministic pass over the published package — offline, rule by rule, and auditable line by line above. Same methodology version, same bytes, same score.
Release history
Always latest — the install command names no version, so it installs the newest release when it runs; the current release on file is 0.5.0. Pin a release below and the command asks for exactly that one.
No release note was published with this version.
- The version this listing was on when mcprush began following its releases. The registry was not asked when it shipped, so this row carries no date.
One review per account, from a signed-in account that does not publish this listing. Nothing else is asked — you can say what you think before you install it. Publishers can reply once per review, and a review can be edited or deleted by whoever wrote it.
Any signed-in account that does not publish FerryCat can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes a signed-in account that does not publish it, and nothing else.