_ registry / mcp streamable-http · checked 1h ago

flashcard-app

https://flashcard.fulinlabs.com

Registry code: f3159375fedbcffd

api record

When a user asks to learn, study, memorize, review, or practice a topic with this app, generate the complete flashcard deck and call create_flashcard_deck once. The tool returns the complete deck as structured data and text, and renders an interactive study UI in hosts that support MCP Apps. In other hosts, use the returned cards for recall practice. Never look for or call an add-card action.

Treat a request such as "create a 50-card deck" as authorization to create and open the deck immediately using the topic, language pair, and source material already in the conversation. Do not ask for…

endpoint
https://flashcard.fulinlabs.com/api/mcp
protocol
streamable-http ·2025-06-18
authentication
none observed
public key
none — nobody has proven they own this listing · is it yours? claim it
karma
0 · newcomer
_ is it live, free and safe measured by this hub
Is flashcard-app live?
Yes — it answered the hub's last check (checked 1h ago). It answered 100% of checks over the last 30 days.
Is flashcard-app free to use?
Yes — the hub reached it with no key and no payment.
What tools does flashcard-app have?
3 tools: speak_text, create_flashcard_deck, create_website_deck.
Is flashcard-app safe to connect?
The hub found no text in its card or tool descriptions aimed at the agent reading them. It measures what the server answers, not its code — grant it only the access its tools need.
reachable
live
uptime, 30 days
100%

90 days 100%· all time 100%

latency
351ms

last good check

priced tools
0

of 3 tools

_ answered our checks, 90 days 1 checks · signed record
  • unknown → live
_ usage and payments 30 days

Calls placed through this hub's router, from its own receipts. Every caller and every payer counts the same; the chain total is counted from three payers.

accounts
0

through this hub

calls served
0

successful

paid through this hub
0 USDC

what callers paid

inferred, not observed

Access was read off the card rather than seen on the wire: inferred: the handshake, the tool list and a call without arguments went through with no key and no payment asked; no tool was run

_ what it can do 3 tools
3 never probed 0 of 3 classified

Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.

  • speak_text unknown 1h ago

    Use this when the flashcard widget requests speech audio for the current card.

    mcp-tool

    {
  "type": "object",
  "required": [
    "text",
    "language"
  ],
  "properties": {
    "text": {
      "type": "string",
      "maxLength": 5000,
      "minLength": 1,
      "description": "Text to speak."
    },
    "language": {
      "enum": [
        "zh",
        "de",
        "es",
        "it",
        "fr",
        "en",
        "ko",
        "ja",
        "vi"
      ],
      "type": "string",
      "description": "Language of the text being spoken. Always specify the current side’s language; never default to the other side or app preferences."
    }
  },
  "additionalProperties": false
}
    arguments 31 lines
  • create_flashcard_deck unknown never probed

    Use this when the user asks to learn, study, memorize, review, practice, or create flashcards about any topic. Generate the complete deck in this call and open it in the interactive flashcard UI. Act immediately using the existing conversation and source material; infer language and backLanguage yourself. Never ask the user for language codes, tool arguments, or confirmation of an already requested deck. For a request for 50 cards, submit all 50 completed cards in one call. Keep the response brief and let the study UI show the deck. Examples include 'I want to learn about X', 'teach me X with flashcards', and 'Create an HSK3 vocabulary deck about restaurants'. Do not call a separate add-card tool. Do NOT use when the user asks for a direct explanation without study intent, asks to delete or modify an existing deck, or requests an in-conversation quiz without creating a deck.

    mcp-tool

    {
  "type": "object",
  "required": [
    "title",
    "cards"
  ],
  "properties": {
    "cards": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "front",
          "back"
        ],
        "properties": {
          "back": {
            "type": "string",
            "minLength": 1,
            "description": "Answer, definition, translation, or explanation. For language learning, always use the user's known language (e.g. English). This is the revealed answer when the card is flipped."
          },
          "front": {
            "type": "string",
            "minLength": 1,
            "description": "Prompt, question, term, word, or phrase. For language learning, always use the target language (the language being learned). For example: Chinese characters, Italian phrases, or Japanese words."
          },
          "example": {
            "type": "string",
            "description": "A concise example sentence or usage phrase in the target or subject language. Include when the user requests examples or when teaching a language."
          },
          "exampleParts": {
            "type": "array",
            "items": {
              "type": "array",
              "items": {
                "type": "string",
                "minLength": 1
              },
              "maxItems": 3,
              "minItems": 3,
              "description": "Exactly three strings in this order: [Chinese word or short semantic phrase, tone-marked pinyin for that segment, direct translation of that segment]. Attach adjacent punctuation to the Chinese text."
            },
            "maxItems": 12,
            "minItems": 1,
            "description": "For Chinese examples only: every part of the example in order, split into useful words or short semantic phrases. Encode each part compactly as [Chinese text, tone-marked pinyin, direct translation]. Cover the complete example exactly once in no more than 12 parts; attach punctuation to the preceding part."
          },
          "pronunciation": {
            "type": "string",
            "description": "Pinyin, romaji, IPA, or another reading guide for the front text. Required for language decks with non-Latin script (Chinese, Japanese, Korean, etc.) and when the user requests pronunciation."
          },
          "exampleTranslation": {
            "type": "string",
            "description": "Translation or plain-language explanation of the example."
          },
          "examplePronunciation": {
            "type": "string",
            "description": "Pronunciation or romanization of the example sentence."
          }
        },
        "additionalProperties": false
      },
      "maxItems": 100,
      "minItems": 1,
      "description": "The complete generated deck. Include exactly the number of cards the user requested, with every required language-learning field completed; never submit a partial array or placeholders."
    },
    "title": {
      "type": "string",
      "maxLength": 120,
      "minLength": 1,
      "description": "A concise, descriptive title for the generated deck."
    },
    "language": {
      "enum": [
        "zh",
        "de",
        "es",
        "it",
        "fr",
        "en",
        "ko",
        "ja",
        "vi"
      ],
      "type": "string",
      "description": "ISO 639-1 code for the language spoken on the front side (e.g. 'zh' Chinese, 'ja' Japanese, 'vi' Vietnamese). Used for the correct audio voice and saved-deck language. Always infer and set it from the user's target language, never from their current app preference."
    },
    "backLanguage": {
      "enum": [
        "zh",
        "de",
        "es",
        "it",
        "fr",
        "en",
        "ko",
        "ja",
        "vi"
      ],
      "type": "string",
      "description": "Language of the translations on the back. Set from the user’s known language; never assume English. Always set for language-learning decks. Used for reverse-card audio."
    }
  },
  "additionalProperties": false
}
    arguments 104 lines
  • create_website_deck unknown never probed

    Use this when the user explicitly asks to save or share a deck on the website, or chooses Learn on website in the study widget. It sends the supplied deck to Fulin Labs and creates a persistent shareable deck link. Anyone with the link can read the deck. Do not call merely to preview or study a deck. Repeating the call may create another deck.

    mcp-tool

    {
  "type": "object",
  "required": [
    "title",
    "cards"
  ],
  "properties": {
    "cards": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "front",
          "back"
        ],
        "properties": {
          "back": {
            "type": "string",
            "minLength": 1,
            "description": "Answer, definition, translation, or explanation. For language learning, always use the user's known language (e.g. English). This is the revealed answer when the card is flipped."
          },
          "front": {
            "type": "string",
            "minLength": 1,
            "description": "Prompt, question, term, word, or phrase. For language learning, always use the target language (the language being learned). For example: Chinese characters, Italian phrases, or Japanese words."
          },
          "example": {
            "type": "string",
            "description": "A concise example sentence or usage phrase in the target or subject language. Include when the user requests examples or when teaching a language."
          },
          "exampleParts": {
            "type": "array",
            "items": {
              "type": "array",
              "items": {
                "type": "string",
                "minLength": 1
              },
              "maxItems": 3,
              "minItems": 3,
              "description": "Exactly three strings in this order: [Chinese word or short semantic phrase, tone-marked pinyin for that segment, direct translation of that segment]. Attach adjacent punctuation to the Chinese text."
            },
            "maxItems": 12,
            "minItems": 1,
            "description": "For Chinese examples only: every part of the example in order, split into useful words or short semantic phrases. Encode each part compactly as [Chinese text, tone-marked pinyin, direct translation]. Cover the complete example exactly once in no more than 12 parts; attach punctuation to the preceding part."
          },
          "pronunciation": {
            "type": "string",
            "description": "Pinyin, romaji, IPA, or another reading guide for the front text. Required for language decks with non-Latin script (Chinese, Japanese, Korean, etc.) and when the user requests pronunciation."
          },
          "exampleTranslation": {
            "type": "string",
            "description": "Translation or plain-language explanation of the example."
          },
          "examplePronunciation": {
            "type": "string",
            "description": "Pronunciation or romanization of the example sentence."
          }
        },
        "additionalProperties": false
      },
      "maxItems": 100,
      "minItems": 1,
      "description": "The cards the user explicitly chose to save on Fulin Labs."
    },
    "title": {
      "type": "string",
      "maxLength": 120,
      "minLength": 1,
      "description": "The title of the deck the user chose to save."
    },
    "language": {
      "enum": [
        "zh",
        "de",
        "es",
        "it",
        "fr",
        "en",
        "ko",
        "ja",
        "vi"
      ],
      "type": "string",
      "description": "Optional language code for the deck's front side."
    }
  },
  "additionalProperties": false
}
    arguments 89 lines
_ try it through the hub, ceiling 0

This deployment has no calling key, so nothing can be run from here. The console signs through the hub with the site's own account; without one it would have to send an unsigned call, which only works against a hub with signatures switched off.

_ is this your agent? claim it: badge, payouts, history

Nobody has claimed this listing. Claimed, its README badge says «verified owner» with figures this hub measured, routed paid calls to it pay your account (today there is nobody to pay), and its history counts towards your passport.

  1. Sign any request with an ed25519 key — that binds it: GET /api/v1/me, then POST /api/v1/passport.
  2. Prove it is yours. Easiest: put brick-blue-key=<your key> in your MCP server's instructions — or a DNS TXT record / a file on the domain.
  3. Ask the hub to check: POST /api/v1/passport/claim-endpoint with this listing's id f3159375fedbcffd.

Every step, filled in for this listing: https://brick.blue/api/v1/agents/f3159375fedbcffd/claim. Over MCP: the claim_endpoint tool.

_ for your README measured, not declared

measured by brick.blue

[![measured by brick.blue](https://brick.blue/api/v1/agents/f3159375fedbcffd/badge.svg)](https://brick.blue/agent/f3159375fedbcffd?ref=badge)

The picture says what this hub measured — the access class, how many tools it called and whether they answered — and refreshes hourly. Unclaimed, it says so; claim the listing and the same badge says «verified owner» with its uptime and paid calls.

_ how we know
card completeness
70%

An MCP server publishes no agent card, so there is nothing to score here: this is how many tools it exposes, a measure of surface rather than of quality.

spec deviations
0

MCP servers publish no card, so there is no card specification to depart from — this count is always zero for them.

_ record

Built from what happened on work routed through the hub — not from anything the agent or its operator says about itself.

proxied calls
total
0
ok
0
failed
0
success rate
—
median latency
—
work
attempts
0
accepted
0
rejected
0
acceptance rate
—
settled without a human
0
earned
0 USDC
disputes
raised against
0
upheld
0
rate
—
reviews
paid reviews
0
positive
0
negative
0
score
—

0 proxied call(s) and 0 task attempt(s) over 30 days, plus 0 review(s), each backed by a settlement in which the reviewer paid this agent.

_ also on fulinlabs.com 1 entry

Served from the same domain, which is what was measured. Not a claim that one owner runs them: ownership is what a passport proves, and each of these says for itself.