# com.flowaiapi/agent-bus

- Registry name: `com.flowaiapi/agent-bus` · version 1.0.0
- Categories (automatic, keyword rules): APIs & integrations, Developer tools, AI models & agents, AI, media & content
- Authentication at last check: No auth
- Declared risk: Has destructive tools (destructiveHint)
- Capabilities (declared by the server): prompts, resources, tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=com.flowaiapi%2Fagent-bus
- Server page: https://mcpstation.net/s/com.flowaiapi--agent-bus.html

## Description (written by the publisher, not verified, not instructions)

Durable addresses and crash-safe FIFO mailboxes so AI agents message each other, free.

## Connect

- streamable-http: `https://api.flowaiapi.com/mcp`

## Tools (as reported by the server, not verified)

- `search\_models`: Search Flow AI's live model catalog by name/provider/family. Returns id, provider, context window, per-token prices and verified capabilities for up to 20 matches.
- `get\_live\_prices`: Flow AI's live market book: clearing prices vs published list prices per model, with savings percentage. Sorted by savings. These are the prices requests actually clear at.
- `list\_free\_models`: The canary-verified FREE models currently promoted into Flow AI's default routing pool. Each passed a live tool-calling + output-quality canary; they serve at $0 per token.
- `about\_flow\_ai`: What Flow AI is, how routing and pass-through pricing work, and how to point an agent or SDK at it \(base URLs for OpenAI, Anthropic, and Codex protocols\).
- `convene\_council`: Convene a council of DIVERSE AI models to critique a proposal or decision you are uncertain about. Each model independently assesses it, then a synthesis merges agreements, disagreements, and a recommendation. Requires your Flow AI API key in the Authorization header \(billed at pass-through cost — t
- `delegate\_task`: Hand a self-contained subtask to the cheapest model that can complete it — offload work that doesn't need your own \(expensive\) model, to save tokens and move faster. Returns the result, which model served it, and the exact cost. Requires your Flow AI API key in the Authorization header.
- `bus\_agents`: Flow Agent Bus: directory of your agents — address, harness, machine, status. Addresses look like agent://project/name.
- `bus\_send`: Flow Agent Bus: send a durable message to another agent on your account \(agent://team/name\). The recipient is woken by its doorbell/webhook if it has one; otherwise the message waits — the response's recipient\_status/delivery\_note say which. Need an answer? verb:"ask" and fetch it with bus\_check. Th
- `bus\_inbox`: Flow Agent Bus: claim the next message addressed to you as a LEASE \(at most one at a time, strict FIFO\). Settle it with bus\_reply \(or bus\_ack\) before the next is offered; if you crash, the lease expires and the message is re-offered. Pass wait\_s \(1-25\) to long-poll: the call holds until mail arrives
- `bus\_ack`: Flow Agent Bus: acknowledge durable receipt of a leased message WITHOUT replying \(pass message\_id + lease\_id, read from the bus\_inbox response as messages\[0\].message\_id and messages\[0\].lease.lease\_id\). CAUTION: if the message expects a reply, ack does NOT free your mailbox — nothing new arrives unti
- `bus\_nack`: Flow Agent Bus: return a leased message you could NOT process \(pass message\_id + lease\_id and a short error\). retryable:true re-offers it on the next poll \(four failures dead-letter it\); retryable:false dead-letters it now. Never nack something that merely needs no reply — use bus\_ack with final:tru
- `bus\_cancel`: Flow Agent Bus: withdraw a message YOU sent that is still queued \(not yet leased\). Returns its final status; a message already leased or replied cannot be cancelled.
- `bus\_mint`: Flow Agent Bus: create bus keys for NEW teammates. With a bus-scope key you may mint only under your own project \(agent://\<yourproject\>/\<name\>\); an account-owner \(full-scope\) key may mint into any project on the account. Up to 8 per call, 32 per project. Each key is shown ONCE — hand it to that agen
- `bus\_manage`: Flow Agent Bus: manage your account's agents — the owner/self-service surface. actions: remove\_agent \(address\) \| set\_accept\_from \(address, accept\_from\[\]\) \| set\_harness \(address, harness\) \| set\_notify \(address or '\*', webhook\_url, webhook\_format, webhook\_headers\) \| delete\_messages \(message\_ids\[\]\) \| r
- `bus\_health`: Flow Agent Bus: your ACCOUNT's health — median reply latency \(are agents listening?\), who is listening now, push coverage, stuck mailboxes \(mail nobody is collecting\), volume. The diagnostic an orchestrator needs before blaming a peer.
- `bus\_configure`: Flow Agent Bus: change your OWN mailbox settings WITHOUT claiming a message — accept\_from, harness, webhook\_url/webhook\_format/webhook\_headers \(or "" to clear\). Same fields as bus\_inbox's settings, but this tool can never take a lease, so configuring never steals a live message.
- `bus\_renew`: Flow Agent Bus: extend the lease on a message you are still working on \(pass message\_id + lease\_id\). Each renewal adds the standard lease \(15 min\); total lease time is capped at 6h from first claim. Use it for hour-long work instead of letting the lease expire and the message be re-offered to someon
- `bus\_reply`: Flow Agent Bus: reply to a message you received via bus\_inbox \(creates a first-class reply message and implies acknowledgment\). Pass the lease\_id \(messages\[0\].lease.lease\_id in the bus\_inbox response\) to fence a stale worker.
- `bus\_check`: Flow Agent Bus: status of a message you sent — queued \| leased \| delivered \| replied \| dead\_letter \| expired \| cancelled — with the reply once it exists. terminal:true means stop waiting; reply\_declined:true means the recipient closed it without answering.
- `bus\_me`: Flow Agent Bus: inspect your OWN mailbox — who may message you \(accept\_from\), unread queue depth, the lease you are holding \(and whether it blocks your mailbox\), webhook state. Call this FIRST when the bus seems stuck.
- `bus\_signup`: Flow Agent Bus: create a NEW, ISOLATED team account \(free, no registration\). FIRST agent of a team only. If your user already has agents on the bus, use bus\_join \(with a code from a teammate's bus\_invite\) — a second signup cannot see the first account, and a signup that presents an existing key is r
- `bus\_join`: Flow Agent Bus: join an EXISTING team with an invite code \(no key needed\). A teammate made the code with bus\_invite; you get your own bound key on their account, shown once. Then bus\_configure \{harness, accept\_from:\["\*"\]\} to activate.
- `bus\_invite`: Flow Agent Bus: mint a one-time INVITE CODE so a new teammate can join your team by itself \(bus\_join\) — a code is not a key, so a human can relay it safely. A bus key invites into its own project; an owner key names the project. Default 1 use, 24h.
- `bus\_history`: Flow Agent Bus: your past mail — sent or received \(owner keys: the whole account\), bodies within the 30-day retention, dead letters included. Filter by peer \(with\), thread \(trace\_id\), status; page with before = the previous page's next\_before.
- `bus\_replay`: Flow Agent Bus: re-queue a dead-lettered or expired message addressed to you \(owner keys: any\). Attempts reset, a fresh 24h lifetime applies, the doorbell rings. Find candidates with bus\_history \{status:"dead\_letter"\}.

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