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Directory / DirectMailAmerica — Narrow
DirectMailAmerica — Narrow
by directmailamerica.com · https://directmailamerica.com/api/mcp-narrow
Quote, preview and approve U.S. letters and postcards; edit cover sheets and inspect mailing status.
11 of 11 checks · 31 Oct 2026
Is DirectMailAmerica — Narrow MCP server safe?
- None of the hidden-instruction wordings we know were found in its tool descriptions.
- Its error messages showed no secrets or internal details.
- 18 of its 23 tools are labeled read-only; the others may change or send things.
- Overall it scored 88/100 on 31 Oct 2026.
A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.
What it can do
23 tools, in the server's own words.
get_connection_statusread-onlyVerify this mcp-narrow connection, authenticated workspace principal, environment, granted scopes and available tool permissions.
get_product_catalogread-onlyNo charge.
quote_productHold a 36-hour expanded-product quote using a workspace key, print-ready PDF and 1–100 US recipients.
send_product_quoteRelease an immutable saved physical-mail quote using an existing authenticated workspace balance and confirmed=true.
send_letterRelease the immutable quoteId from quote_letter using an existing authenticated workspace balance.
get_letter_statusread-onlyNo charge.
list_jobsread-onlyNo charge.
get_pricingread-onlyCalculate a public USD physical-mail quote from mail class, page count, recipient count, print options and optional coupon.
get_creditsread-onlyRead the authenticated workspace's existing balance in USD cents.
list_addressesread-onlyList or search the workspace address book with bounded pagination.
validate_addressread-onlyCheck and normalize U.S.
get_workspace_settingsread-onlyRead profile name, workspace name, default sender and website links for account security, member invitations and API-key management.
get_billing_historyread-onlyRead the workspace credit ledger with amounts, balances, order references and pagination.
download_job_documentread-onlyDownload an owned job's saved print PDF as an embedded private resource, including Email to Letter document recovery.
get_product_quoteread-onlyRecover an owned saved product quote, exact options, price, expiry and order state.
preview_product_quoteread-onlyDownload a saved quote's exact artwork PDF.
list_cover_sheetsread-onlyList reusable workspace cover-sheet designs and versions, plus defaultDesign matching the website's Reset defaults button.
save_cover_sheetCreate or update a reusable workspace cover sheet: name, heading, message, sans/serif font, heading/body sizes and alignment.
render_cover_sheetread-onlyRender a one-page letter-size cover-sheet PDF with design, sender and recipient.
convert_postcard_imageread-onlyConvert imageBase64 (maximum 25 MiB decoded) to print-ready PDF using the website's fitting, orientation and resolution checks.
preview_letterread-onlyRender/inspect the exact letter or small postcard PDF and calculate its current price without sending, reserving credits or uploading artwork.
quote_letterCreate a saved 30-minute standard-letter or Express-postcard quote and exact PDF proof without charging or sending.
get_letter_quoteread-onlyRead a saved standard-mail quote, its exact PDF and send outcome.
Test results
Safe mode: only tools labeled read-only were run. How the test works
- !Ready for the newest MCP versionnote
1 warning
- !Uses an older MCP version (2025-11-25). It works today, but it isn't on the July 2026 version (2026-07-28) yet.
- !Every tool is describednote
18 warnings
- !quote_product: Inputs with no description: productId, filename, from, recipients, paper, color, electronicReturnReceipt, returnEnvelope
- !send_product_quote: Inputs with no description: id, confirmed
- !send_letter: Inputs with no description: mailClass, certified, electronicReturnReceipt, doubleSided, filename, from, recipients
- !get_letter_status: Inputs with no description: id
- !list_jobs: Inputs with no description: limit
- !get_pricing: Inputs with no description: mailClass, pageCount, recipientCount, certified, electronicReturnReceipt, color
- !list_addresses: Inputs with no description: limit, before, search
- !validate_address: Inputs with no description: address
- and 10 more
- !Follows MCP best practices (not scored yet)note
1 tip (not scored)
- !The tool list is about 74 KB (roughly 18k tokens). AI apps send it with every message, so it takes that much of the AI's memory before any work starts.
- ✓ConnectsConnected in 477 mspass
- ✓Lists its toolsFound 23 toolspass
- ✓Tools are labeled safe or dangerousEvery tool has a safety labelpass
- ✓No known hidden instructionsNone of the hidden-instruction wordings we know were found in tool descriptions. New wordings can get past this check.pass
- ✓Tools work with good inputspass
All good
- ✓get_connection_status: Worked (193 ms)
- ✓get_product_catalog: Worked (104 ms)
- –get_letter_status: Needs you to sign in, so it was not tested (not counted against the server)
- –list_jobs: Needs you to sign in, so it was not tested (not counted against the server)
- ✓get_pricing: Worked (197 ms)
- –get_credits: Needs you to sign in, so it was not tested (not counted against the server)
- –list_addresses: Needs you to sign in, so it was not tested (not counted against the server)
- –validate_address: Needs you to sign in, so it was not tested (not counted against the server)
- and 15 more
- ✓Bad inputs give a clean errorpass
All good
- –get_letter_status: Needs you to sign in, so bad inputs were not tested
- –list_jobs: Needs you to sign in, so bad inputs were not tested
- ✓get_pricing: Refused wrong type for "mailClass" with a clear error
- –list_addresses: Needs you to sign in, so bad inputs were not tested
- –validate_address: Needs you to sign in, so bad inputs were not tested
- –get_billing_history: Needs you to sign in, so bad inputs were not tested
- –download_job_document: Needs you to sign in, so bad inputs were not tested
- –get_product_quote: Needs you to sign in, so bad inputs were not tested
- and 3 more
- ✓Fast enoughpass
All good
- ✓Connecting took 477 ms
- ✓Listing tools took 112 ms
- ✓Average tool answer: 165 ms
- ✓get_pricing: Slowest tool: get_pricing (197 ms)
- ✓No secrets leakedChecked 45 error messages: no secrets or internal detailspass
- –Tools work togetherNo tool's answer could be fed into another tool, so there were no chains to test (not counted either way)not tested
Test it yourself
Free and open source. Same checks, same score.
npx qamcp-cli https://directmailamerica.com/api/mcp-narrowShow this score on GitHub
Free for every server in the directory. Paste this into your README: the badge shows the score from our latest test.
[](https://qamcp.dev/s/com-directmailamerica-mcp-narrow.html)Score over time
- 31 Oct 202688
One test so far. New tests will show here.
Reviews
Coming soon: reviews from people who use DirectMailAmerica — Narrow, signed in with GitHub, one per person. Reviews never change the score.
QAmcp Monitor (coming soon) tests it every hour and emails you when it goes down, the score drops, a tool changes or a secret leaks. You'll also be able to claim this page and get a verified owner mark. Founding price: $19/month for life for the first 50 teams.
Have a concern, or want it removed? Ask us and we'll take it off the list. How the directory works