Connection check
verified live · 20h ago
mailbox
Physical mail API for AI agents. Send letters, certified mail. Sandbox + live keys via MCP.
Tools
19
GitHub stars
—
Installs / wk
—
Licence
—
Transport
streamable-http
Last checked
20h ago
Tools & capabilities
19 toolsRead from the running server on 20h ago.
advance_test_outbound_mail
mail_id*
Advance a test_mode outbound mail record one lifecycle step and queue the matching webhook. submitted becomes ready with simulated pages/envelope photos; ready becomes mailed with… Advance a test_mode outbound mail record one lifecycle step and queue the matching webhook. submitted becomes ready with simulated pages/envelope photos; ready becomes mailed with carrier, dispatch method, receipt photo, and tracking when the selected service includes tracking; mailed becomes delivered.
cancel_outbound_mail
can modify data
mail_id*
Cancel a queued outbound mail job before facility printing starts. If the mail was funded with prepaid credits, eligible credits are returned to the member ledger. Safe to retry: a… Cancel a queued outbound mail job before facility printing starts. If the mail was funded with prepaid credits, eligible credits are returned to the member ledger. Safe to retry: already-cancelled mail returns cancelled status without creating a duplicate refund. In chat, report cancellation status, returned credits, updated balance, and whether it had already been cancelled. If a transient error occurs, poll the mail status and credits before retrying.
create_test_outbound_mail
colormetadatamail_classpage_countagent_notesrecipient_zip
+5
Create a sandbox outbound mail record without uploading a real document. The record is always test_mode=true, cost_cents=0, includes estimated_live_cost_cents and cost_breakdown, a… Create a sandbox outbound mail record without uploading a real document. The record is always test_mode=true, cost_cents=0, includes estimated_live_cost_cents and cost_breakdown, and queues a mail.submitted webhook. USPS First-Class Mail has a published $2.00 one-page baseline. Extra pages add configured printing plus any postage increase from weight. If an account's normal first-page formula is lower, cost_breakdown.first_class_baseline_adjustment_cents itemizes the difference separately from carrier postage. Color pages cost $0.70/page total by default before handling and postage: $0.40/page base B&W printing plus a $0.30/page additive color upgrade. In cost_breakdown, color_printing_per_page_cents is the total color-page printing price (70 cents by default), while color_surcharge_per_page_cents is the additive upgrade only (30 cents by default). Account-specific pricing can override these defaults; cost_breakdown is authoritative. FedEx and UPS estimates use the same configured origin and destination zone/region logic as production; FedEx Overnight adds a fixed $18.00 after the otherwise-calculated carrier baseline and reports service_adjustment_cents: 1800. Use with a sandbox key to rehearse outbound workflows before sending real physical mail.
get_facility_messages
read-only
limitbefore
Read the message thread with Austin HQ. Facility routing is automatic. Returns messages in reverse chronological order with sender role (member, facility, agent). Supports cursor-b… Read the message thread with Austin HQ. Facility routing is automatic. Returns messages in reverse chronological order with sender role (member, facility, agent). Supports cursor-based pagination. Automatically marks facility messages as read.
get_inbound_mail
read-only
includesigned_urlsinbound_mail_id*
Get one forwarded inbound mail item with compact draft_context by default. Use this before drafting an outbound reply when you need sender context, reply contact candidates, deadli… Get one forwarded inbound mail item with compact draft_context by default. Use this before drafting an outbound reply when you need sender context, reply contact candidates, deadline clues, source files, and thread linkage in one stable payload.
get_mailbox
read-only
Get your agent's real mailing address beta endpoint when the account has explicit beta access: street address + mailbox number for approved accounts. For generally available inboun… Get your agent's real mailing address beta endpoint when the account has explicit beta access: street address + mailbox number for approved accounts. For generally available inbound context, use list_inbound_forwarding_addresses instead; that returns a private intake alias for scans, PDFs, photos, provider notices, and notes from addresses the operator already uses.
get_mailbox_md
read-only
Get the renter's MAILBOX.md standing instructions for this agent. Returns the full instruction text, version number, content hash, and last update timestamp. Call this on startup a… Get the renter's MAILBOX.md standing instructions for this agent. Returns the full instruction text, version number, content hash, and last update timestamp. Call this on startup and cache the version — you must pass it to send_outbound_mail for sync verification.
get_outbound_mail
read-only
mail_id*
Get full details of an outbound mail job including recipient address, mail class, page count, cost breakdown, current status, failure metadata, document metadata, and fulfillment p… Get full details of an outbound mail job including recipient address, mail class, page count, cost breakdown, current status, failure metadata, document metadata, and fulfillment photos. Legacy plaintext records may include direct document URLs; encrypted source documents are retrieved through the REST document endpoint with document.read scope.
get_postal_thread
read-only
includethread_id*
Get one physical-mail thread with optional timeline events. Use this to explain how a generated outbound mail piece relates back to prior inbound scans and review decisions. Get one physical-mail thread with optional timeline events. Use this to explain how a generated outbound mail piece relates back to prior inbound scans and review decisions.
get_usage
read-only
period_endperiod_start
Get usage summary, billing events, and prepaid credit balance for a time period. Returns itemized events (scans, forwards, mail sends) with costs, period totals, and credits. Defau… Get usage summary, billing events, and prepaid credit balance for a time period. Returns itemized events (scans, forwards, mail sends) with costs, period totals, and credits. Defaults to the current billing period if no dates are specified. Use this in Cursor/MCP chat when the human asks how many mailbox.bot credits are left; answer with the prepaid balance and explain that only the signed-in human can add funds.
list_facility_conversations
read-only
limitoffset
List your Austin HQ conversation with its unread message count and last message preview. Facility routing is automatic. List your Austin HQ conversation with its unread message count and last message preview. Facility routing is automatic.
list_inbound_forwarding_addresses
read-only
List the renter’s private inbound forwarding aliases on forward.mailbox.bot. These are the unique intake email addresses an operator, assistant, provider, or external agent can for… List the renter’s private inbound forwarding aliases on forward.mailbox.bot. These are the unique intake email addresses an operator, assistant, provider, or external agent can forward scans, PDFs, photos, provider notices, notes, and other context-aware documents to so mailbox.bot can build OCR-backed inbound context. Forwarding/emailing attachments here initiates OCR/extraction; this tool discovers the address and does not upload files directly into OCR. The alias is member-scoped, so live and sandbox agent keys for the same member resolve to the same intake address.
list_inbound_mail
read-only
limitoffsetstatusincludecategorythread_id
List forwarded inbound mail items captured from private forwarding aliases. Default output includes compact draft_context so an LLM or external agent can reason about OCR context,… List forwarded inbound mail items captured from private forwarding aliases. Default output includes compact draft_context so an LLM or external agent can reason about OCR context, reply contact candidates, deadlines, and thread linkage before generating outbound mail.
list_outbound_mail
read-only
qlimitoffsetstatustest_modecreated_after
+1
List outbound mail jobs with status tracking. Returns mail ID, recipient, mail class, status, cost, timestamps, and failure metadata. Filter by status, created_at date range, or se… List outbound mail jobs with status tracking. Returns mail ID, recipient, mail class, status, cost, timestamps, and failure metadata. Filter by status, created_at date range, or search recipient/address/tracking/agent notes.
list_postal_threads
read-only
limitoffsetstatusincludecategory
List physical-mail threads that group inbound mail context, human review, and outbound sends. Use this to understand which inbound items and outbound documents belong to the same b… List physical-mail threads that group inbound mail context, human review, and outbound sends. Use this to understand which inbound items and outbound documents belong to the same business workflow.
propose_mailbox_md_edit
reason*suggested_content*
Propose changes to the renter's MAILBOX.md instructions with reasoning. The renter will see your suggestion in their dashboard and can accept, reject, or modify it. Use this when y… Propose changes to the renter's MAILBOX.md instructions with reasoning. The renter will see your suggestion in their dashboard and can accept, reject, or modify it. Use this when you observe patterns that could be codified into standing instructions.
send_facility_message
body*package_idaction_request_id
Send a message to the Austin HQ operator managing your mailbox. Facility routing is automatic. Messages appear in the shared conversation visible to you, the renter, and the facili… Send a message to the Austin HQ operator managing your mailbox. Facility routing is automatic. Messages appear in the shared conversation visible to you, the renter, and the facility. Optionally link the message to a specific package or action request for context.
send_outbound_mail
can modify data
colorduplexdry_runmetadatamail_classpackage_id
+24
Submit a document for printing and postal mailing by the facility. Supported formats: PDF, DOCX, JPG, PNG, TXT, CSV. The document is stored securely and printed by the facility ope… Submit a document for printing and postal mailing by the facility. Supported formats: PDF, DOCX, JPG, PNG, TXT, CSV. The document is stored securely and printed by the facility operator. USPS First-Class Mail has a published $2.00 one-page baseline. Extra pages add configured printing plus any postage increase from weight. If an account's normal first-page formula is lower, cost_breakdown.first_class_baseline_adjustment_cents itemizes the difference separately from carrier postage. Published default pricing for other classes is $2.50 handling + $0.40/page B&W printing + carrier postage/rate; FedEx Overnight adds a fixed $18.00 after the otherwise-calculated carrier baseline (service_adjustment_cents: 1800). Color pages cost $0.70/page total by default before handling and postage: $0.40/page base B&W printing plus a $0.30/page additive color upgrade. In cost_breakdown, color_printing_per_page_cents is the total color-page printing price (70 cents by default), while color_surcharge_per_page_cents is the additive upgrade only (30 cents by default). Account-specific pricing can override these defaults; cost_breakdown is authoritative. IMPORTANT: With a production key (sk_agent_), this spends the human member's prepaid mailbox.bot credits. Agents never access Stripe, card data, or Auto-Fill settings. If the signed-in human separately enabled Agent Auto-Fill, an eligible live order may trigger a bounded server-managed reload. Use dry_run=true to preview required credits before committing, or requires_approval=true to defer the credit debit until human approval. Sandbox keys (sk_agent_test_) skip credit debits and facility fulfillment. Responses include human_review with send-to address, return address, mail class, document details, preview URL when available, cost, safeguards, and next step; show that to the human before live funded sends. tracking_number is required for priority, certified, certified_return_receipt, FedEx, and UPS mail classes. USPS first_class does not include carrier tracking by default; tracking_number may be null. Optionally attach the outbound mail to inbound context with inbound_capture_id and postal_mail_thread_id so lineage stays explicit. Explicit Business mail runs are REST-only.
update_webhook
enabledevent_typeswebhook_url