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MCP server · Code & DevOps

FeedLetter MCP by usefulapi

By usefulapi.io Verified namespace

List surveys, votes and feedback; create surveys and read Wall of Love items in FeedLetter.

WebsiteSource code
Connect to FeedLetter MCP by usefulapi
Checks passed
14 / 22

0 failed · 8 not measured

Median response
62 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
4

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Outdated check

Last connection measurement is over 24 hours old. Current availability is unknown.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
402

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 62 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name feedletter-mcp.

  • Pass
    Lists tools

    tools/list returned 4 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 62 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 62 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    17 of 17 parameters have a description (100%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-11-10T23:35:07.8193Z, within 180 days.

  • Not measured
    Open-source licence

    The GitHub licence lookup has not returned an OSI result yet.

Start using FeedLetter MCP by usefulapi

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http feedletter-mcp-by-usefulapi https://feedletter.usefulapi.io/mcp

Capabilities

Tools 4

feedletter_create_survey

Create a newsletter survey, a one-time poll or a web rating widget. Needs a Read & write key. Only type and name are required. Newsletter and poll responses return links (one voting link per answer) and email_html; web ratings return embed_html. Set external_id to your own stable id: a second call with the same external_id returns the existing survey (HTTP 200, already_exists) and changes nothing. Without external_id, each call creates a new survey. Do not combine copy_from with text_template. FeedLetter API: POST /v2/surveys.

Discovered
feedletter_get_survey

Get one survey by its FeedLetter survey id: settings, placement code (links or embed_html), analytics (votes, daily votes, sentiment) and all feedback. Set results_only to true for just the identity, analytics and feedback. Use the survey id, not the external_id. Read-only. FeedLetter API: GET /v2/surveys/{id}.

Discovered
feedletter_get_wall_of_love

Get the feedback that one Wall of Love shows, to build your own wall. Each item has id, comment, name (when shown), answer_label, created_at and survey_title. Comment and name are HTML-escaped. Business plan only: other plans get 403 plan_required. Read-only. FeedLetter API: GET /v2/walls-of-love/{id}.

Discovered
feedletter_list_surveys

List or search your FeedLetter surveys (newsletter surveys, one-time polls and web rating widgets), newest first, 50 per page. q matches the name, id or external_id. Each item has id, type, name, external_id, public_title and created_at. While has_more is true, call again with page + 1. Read-only. FeedLetter API: GET /v2/surveys.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected62 ms4

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