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MCP server · Data

Postbox

by · github.com/seanrobmerriam/postbox

A persistent, lease-based message queue for AI Agents with HTTP, gRPC, and MCP interfaces backed by SQLite.

Unclaimed artificial-intelligencegrpcgrpc-clientgrpc-gatewaygrpc-servermcpmcp-protocolmcp-serversmcp-toolsmessage-brokermessage-drivenmessage-passingmessage-queuemesssage-serializationrest-api
InstallView source
34Low

Scored a month ago · breakdown

About Postbox

Postbox is an MCP server published by seanrobmerriam in the Data category: a persistent, lease-based message queue for AI Agents with HTTP, gRPC, and MCP interfaces backed by SQLite.

Recent commit activity is the strongest signal that reported issues will get attention.

Install

From source
git clone https://github.com/seanrobmerriam/postbox

This server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.

Tools (11)

check_inboxPeek at visible messages without claiming

Parameters not published.

claim_messageClaim the next visible message under a lease

Parameters not published.

commit_messageCommit a claimed message (requires a checkpoint token)

Parameters not published.

fanout_messageAtomically send one message to multiple mailboxes

Parameters not published.

list_dead_lettersList DLQ records for a mailbox (filterable by reason)

Parameters not published.

list_mailboxesCursor-paginated list of all mailboxes

Parameters not published.

mailbox_statsPer-mailbox counters and oldest-pending timestamp

Parameters not published.

purge_dead_lettersOperator-triggered DLQ purge before a timestamp

Parameters not published.

release_messageRelease with transient or permanent failure classification

Parameters not published.

replay_dead_letterRe-inject a dead-lettered message with `attempt_count` reset

Parameters not published.

send_messageEnqueue a message; supports `priority`, `delay_ms`, `ttl_ms`

Parameters not published.

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Security checks

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Questions

About Postbox

How do I install Postbox?

No package has been published for this server, so install it from source: clone the repository and follow its README.

Is Postbox safe to use with an AI agent?

Its trust score is 34 out of 100 (low). Conduid hasn't run static security checks on this repository yet, so review the source yourself before granting it credentials. It has no ConduID identity yet, so agent calls to it are not receipted.

Is Postbox still maintained?

Yes — the last commit was 3 months ago. The repository has 0 stars and 0 forks.