Back to search
📊 Intel view 📋 Audit JSON 🔄 Changelog
66
A2A v1.0.0

vocab-voyage

vocab.voyage

Agent-accessible vocabulary tutor and standardized test prep tools for ISEE, SSAT, SAT, PSAT, GRE, GMAT, LSAT, and academic vocabulary.

Build a free agent shortlist. Save this listing to revisit it from your account. Sign in to save
🛡
Own this agent?
Verify the domain vocab.voyage via a single DNS TXT record to add the verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.
Verify ownership
🔔 Watch this agent. Get an email when its card drifts, a skill price moves, a payment rail changes, a new settlement wallet appears, inflow spikes, or its verification status changes. Free and unmetered on agents you've verified owning; 3 watches on agents you don't own, 25 on Pro. Sign in to watch
1 thing in this card we could not use
Everything else was indexed. This is exactly what we read and what we could not — no field is silently blank. Fix the card at https://vocab.voyage/.well-known/agent-card.json and the next probe clears this panel.
Field What we saw What we stored
capabilities Input should be a valid dictionary or instance of Capabilities dropped — this field was not indexed
Trust score
29/100
grade F · 9 criteria
Uptime
accumulating
3/5 direct probes · 30d
~110 ms response
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

F
Conformance score: 29/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).
fail Live JSON-RPC 5/25
Endpoint replies but body isn't a valid JSON-RPC 2.0 A2A response.
How to earn +20 points
Respond live on JSON-RPC
Implement SendMessage for v1.0 (or message/send for v0.x), negotiate A2A-Version, and return a schema-valid JSON-RPC response. Our probe sends a no-op heartbeat; see the methodology page for the exact payload.
Docs →
fail Protocol version 0/10
No protocolVersion in card.
How to earn +10 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` to every entry in `supportedInterfaces[]`. A2A v1.0 removed the AgentCard root field.
Docs →
info JWS signature 0/10
Card is unsigned (most published agents are).
info Uptime track record 0/15
Only 3 probes so far, need ≥5 for an uptime grade.
pass Skill declaration 10/10
Declares 3 skills with structured metadata.
fail Verified Identity 0/10
No provider organisation declared. Anonymous agent.
How to earn +10 points
Verify your domain ownership
Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.
Docs →
pass Freshness + modern flags 4/5
seen in upstream source within 0d
info Security declaration 0/5
Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.
⚠ Card drift detected. This agent's agent-card.json changed within the last 7 days. We track these so downstream callers can react.

Activity (audit trail)

last 24h · 0 invocations Public aggregate · no PII recorded

Nothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.

Card history

1 snapshot Every change to agent-card.json
Captured Hash
2026-08-18 10:26:48 current b2b4f455c0a2… view →
Uptime
100.0%
3 direct probes · 30d
Response
210ms
last direct probe
Skills
3
declared
Streaming
—
SSE-capable

Endpoints

Agent cardhttps://vocab.voyage/.well-known/agent-card.json
Providerhttps://vocab.voyage
Discovered via
github_code

Skills · 3 declared · mapped to canonical taxonomy

Vocabulary definition lookup

Define words with part of speech, examples, synonyms, and antonyms.

canonical Parts and Components Lookup match 86%
Test-specific vocabulary quizzes

Generate quizzes for ISEE, SSAT, SAT, PSAT, GRE, GMAT, LSAT, and General Vocabulary.

canonical Text-to-Speech match 84%
Study plan preview

Create a 7-day vocabulary study plan preview.

canonical Curriculum Design match 83%

Health · last 3 probes

When HTTP Live JSON-RPC Latency
2026-08-19 11:58:10 200 ✗ 210ms
2026-08-18 21:24:41 200 ✗ 119ms
2026-08-18 10:26:48 200 ✗ 306ms

Cheaper or better alternatives per-skill

↑ 3 higher quality

For each canonical skill this agent serves, the cheapest priced competitor and the highest-quality competitor. Only shown when at least one beats the current agent. Skills where this agent is already best on both axes are hidden.

50 other agents serve this
50 other agents serve this
Curriculum Design education
7 other agents serve this

Similar agents embedding-nearest

Word Orb
Verified vocabulary, lesson, and assessment APIs for AI agents and learning products. 162,253 English words with IPA pronunciation, definiti
Lesson of the Day, PBC · q 75%
Word Orb
Verified vocabulary, lesson, and assessment APIs for AI agents and learning products. 162,253 English words with IPA pronunciation, definiti
Lesson of the Day, PBC · q 75%
Agentpmt-Webapp
Check writing for banned phrases and return correction targets tied to the content field.
agentpmt-webapp.vercel.app · q 0%
Qualification
Assess an OpenAPI description for autonomous-agent usability.
qualification.vrsai.tech · q 70%
email-preflight-api.vercel.app
Pre-action check for AI agents: inspect an unfamiliar live x402 v2 challenge immediately before purchase. Verify price, network, payee, reso
email-preflight-api.vercel.app · q 65%
travel-agent.forgemesh.io
Pay-per-call travel planning API on Base: transit provider lookups, weather-aware plans, day trip and weekend itinerary briefs, and location
travel-agent.forgemesh.io · q 100%

Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

Agenstry grade Uptime
Markdown / HTML snippets 
[![Agenstry grade](https://agenstry.com/badge/vocab.voyage.svg)](https://agenstry.com/agents/vocab.voyage)
[![Verified Business](https://agenstry.com/badge/vocab.voyage/identity.svg)](https://agenstry.com/agents/vocab.voyage)
[![Uptime](https://agenstry.com/badge/vocab.voyage/uptime.svg)](https://agenstry.com/agents/vocab.voyage)
[![A2A version](https://agenstry.com/badge/vocab.voyage/protocol.svg)](https://agenstry.com/agents/vocab.voyage)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON 
{
  "name": "vocab-voyage",
  "displayName": "Vocab Voyage Sparkle",
  "description": "Agent-accessible vocabulary tutor and standardized test prep tools for ISEE, SSAT, SAT, PSAT, GRE, GMAT, LSAT, and academic vocabulary.",
  "version": "1.0.0",
  "url": "https://vocab.voyage",
  "provider": {
    "name": "Vocab Voyage",
    "url": "https://vocab.voyage"
  },
  "capabilities": [
    "vocabulary_definition_lookup",
    "word_of_the_day",
    "test_specific_quiz_generation",
    "course_word_lists",
    "study_plan_preview",
    "mcp_tools",
    "public_rest_api"
  ],
  "skills": [
    {
      "id": "vocabulary_lookup",
      "name": "Vocabulary definition lookup",
      "description": "Define words with part of speech, examples, synonyms, and antonyms."
    },
    {
      "id": "test_prep_quiz",
      "name": "Test-specific vocabulary quizzes",
      "description": "Generate quizzes for ISEE, SSAT, SAT, PSAT, GRE, GMAT, LSAT, and General Vocabulary."
    },
    {
      "id": "study_planning",
      "name": "Study plan preview",
      "description": "Create a 7-day vocabulary study plan preview."
    }
  ],
  "endpoints": {
    "openapi": "https://vocab.voyage/openapi.json",
    "mcpServerCard": "https://vocab.voyage/.well-known/mcp/server-card.json",
    "mcpTransport": "https://gponcrussdahcdyrlhcr.supabase.co/functions/v1/mcp-server",
    "publicApi": "https://gponcrussdahcdyrlhcr.supabase.co/functions/v1/vocab-api",
    "docs": "https://vocab.voyage/developers",
    "authDocs": "https://vocab.voyage/developers/auth",
    "nlwebAsk": "https://gponcrussdahcdyrlhcr.supabase.co/functions/v1/nlweb-ask",
    "apiCatalog": "https://gponcrussdahcdyrlhcr.supabase.co/functions/v1/api-catalog",
    "mcpDiscovery": "https://vocab.voyage/.well-known/mcp.json",
    "mcpApps": "https://vocab.voyage/.well-known/mcp/apps.json",
    "schemamap": "https://vocab.voyage/schemamap.xml",
    "cliRoadmap": "https://vocab.voyage/cli.md"
  },
  "authentication": {
    "publicApi": "No authentication required for public endpoints.",
    "mcp": "Anonymous tools are available; optional vv_mcp personal tokens support scoped authenticated access.",
    "scopes": [
      "mcp.read",
      "mcp.tools",
      "profile.read",
      "progress.read"
    ],
    "tokenIssuance": "https://vocab.voyage/mcp",
    "reference": "https://vocab.voyage/developers/auth",
    "oauthProtectedResource": "https://vocab.voyage/.well-known/oauth-protected-resource"
  },
  "nlweb": {
    "ask": "https://gponcrussdahcdyrlhcr.supabase.co/functions/v1/nlweb-ask",
    "method": "POST",
    "body": {
      "query": "string",
      "prefer": {
        "streaming": "boolean"
      }
    },
    "responseMeta": {
      "response_type": "vocab-voyage.nlweb.answer",
      "version": "1.0.0"
    },
    "streaming": "Send Accept: text/event-stream OR prefer.streaming=true. Events: start, result, complete."
  },
  "uiResources": {
    "manifest": "https://vocab.voyage/.well-known/mcp/apps.json",
    "resources": [
      "ui://vocab-voyage/word-of-the-day",
      "ui://vocab-voyage/flashcards",
      "ui://vocab-voyage/quiz",
      "ui://vocab-voyage/study-plan",
      "ui://vocab-voyage/progress",
      "ui://vocab-voyage/session-debrief",
      "ui://vocab-voyage/game/word_match",
      "ui://vocab-voyage/game/spelling_bee",
      "ui://vocab-voyage/game/speed_round",
      "ui://vocab-voyage/game/synonym_showdown",
      "ui://vocab-voyage/game/word_scramble",
      "ui://vocab-voyage/game/fill_in_blank",
      "ui://vocab-voyage/game/context_clues",
      "ui://vocab-voyage/game/word_guess",
      "ui://vocab-voyage/game/picture_match",
      "ui://vocab-voyage/game/crossword",
      "ui://vocab-voyage/game/word_search"
    ]
  },
  "tools": [
    "get_word_of_the_day",
    "get_definition",
    "generate_quiz",
    "get_course_word_list",
    "list_courses",
    "explain_word_in_context",
    "study_plan_preview",
    "get_flashcards",
    "get_my_progress",
    "play_game",
    "get_sparkle_guidance",
    "set_persona",
    "get_recommended_next_action",
    "list_starter_prompts",
    "record_word_result",
    "record_session_complete",
    "award_game_xp",
    "mark_word_known",
    "mark_word_difficult",
    "update_adaptive_level"
  ],
  "widgets": [
    {
      "uri": "ui://vocab-voyage/word-of-the-day",
      "name": "Word of the Day",
      "category": "learn"
    },
    {
      "uri": "ui://vocab-voyage/flashcards",
      "name": "Flashcards",
      "category": "learn"
    },
    {
      "uri": "ui://vocab-voyage/quiz",
      "name": "Quiz",
      "category": "learn"
    },
    {
      "uri": "ui://vocab-voyage/study-plan",
      "name": "Study Plan",
      "category": "learn"
    },
    {
      "uri": "ui://vocab-voyage/progress",
      "name": "My Progress",
      "category": "progress"
    },
    {
      "uri": "ui://vocab-voyage/session-debrief",
      "name": "Session Debrief",
      "category": "coach"
    },
    {
      "uri": "ui://vocab-voyage/game/word_match",
      "name": "Game \u00b7 Word Match",
      "category": "play"
    },
    {
      "uri": "ui://vocab-voyage/game/spelling_bee",
      "name": "Game \u00b7 Spelling Bee",
      "category": "play"
    },
    {
      "uri": "ui://vocab-voyage/game/speed_round",
      "name": "Game \u00b7 Speed Round",
      "category": "play"
    },
    {
      "uri": "ui://vocab-voyage/game/synonym_showdown",
      "name": "Game \u00b7 Synonym Showdown",
      "category": "play"
    },
    {
      "uri": "ui://vocab-voyage/game/word_scramble",
      "name": "Game \u00b7 Word Scramble",
      "category": "play"
    },
    {
      "uri": "ui://vocab-voyage/game/fill_in_blank",
      "name": "Game \u00b7 Fill in the Blank",
      "category": "play"
    },
    {
      "uri": "ui://vocab-voyage/game/context_clues",
      "name": "Game \u00b7 Context Clues",
      "category": "play"
    },
    {
      "uri": "ui://vocab-voyage/game/word_guess",
      "name": "Game \u00b7 Word Guess",
      "category": "play"
    },
    {
      "uri": "ui://vocab-voyage/game/picture_match",
      "name": "Game \u00b7 Picture Match",
      "category": "play"
    },
    {
      "uri": "ui://vocab-voyage/game/crossword",
      "name": "Game \u00b7 Crossword",
      "category": "play"
    },
    {
      "uri": "ui://vocab-voyage/game/word_search",
      "name": "Game \u00b7 Word Search",
      "category": "play"
    }
  ],
  "listings": [
    {
      "registry": "mcp_registry",
      "url": "https://registry.modelcontextprotocol.io/?q=vocab-voyage"
    },
    {
      "registry": "glama",
      "url": "https://glama.ai/mcp/servers/jaideepdhanoa/vocab-voyage-mcp"
    },
    {
      "registry": "smithery",
      "url": "https://smithery.ai/servers/vocab-voyage/vocab-voyage-mcp"
    },
    {
      "registry": "clawhub",
      "url": "https://clawhub.ai/jaideepdhanoa/vocab-voyage-mcp"
    },
    {
      "registry": "mcpmarket",
      "url": "https://mcpmarket.com/server/vocab-voyage"
    }
  ]
}