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8 clients · secrets stay placeholders

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{
  "mcpServers": {
    "webhook-inbox": {
      "type": "http",
      "url": "https://inbox.kymac.co/mcp",
      "headers": {
        "Authorization": "Bearer ${WEBHOOK_INBOX_TOKEN}",
        "X-API-Key": "${X_API_KEY}"
      }
    }
  }
}

claude mcp add --transport http webhook-inbox https://inbox.kymac.co/mcp --header "Authorization: Bearer ${WEBHOOK_INBOX_TOKEN}" --header "X-API-Key: ${X_API_KEY}"

[mcp_servers.webhook-inbox]
url = "https://inbox.kymac.co/mcp"
bearer_token_env_var = "WEBHOOK_INBOX_TOKEN"
env_http_headers = { "X-API-Key" = "X_API_KEY" }

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "webhook-inbox": {
      "type": "remote",
      "url": "https://inbox.kymac.co/mcp",
      "enabled": true,
      "headers": {
        "Authorization": "Bearer {env:WEBHOOK_INBOX_TOKEN}",
        "X-API-Key": "{env:X_API_KEY}"
      }
    }
  }
}

{
  "mcpServers": {
    "webhook-inbox": {
      "type": "http",
      "url": "https://inbox.kymac.co/mcp",
      "headers": {
        "Authorization": "Bearer ${WEBHOOK_INBOX_TOKEN}",
        "X-API-Key": "${X_API_KEY}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=webhook-inbox&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vaW5ib3gua3ltYWMuY28vbWNwIiwiaGVhZGVycyI6eyJBdXRob3JpemF0aW9uIjoiQmVhcmVyICR7V0VCSE9PS19JTkJPWF9UT0tFTn0iLCJYLUFQSS1LZXkiOiIke1hfQVBJX0tFWX0ifX0%3D"
}

{
  "servers": {
    "webhook-inbox": {
      "type": "http",
      "url": "https://inbox.kymac.co/mcp",
      "headers": {
        "Authorization": "Bearer ${WEBHOOK_INBOX_TOKEN}",
        "X-API-Key": "${X_API_KEY}"
      }
    }
  }
}

{
  "mcpServers": {
    "webhook-inbox": {
      "httpUrl": "https://inbox.kymac.co/mcp",
      "headers": {
        "Authorization": "Bearer ${WEBHOOK_INBOX_TOKEN}",
        "X-API-Key": "${X_API_KEY}"
      }
    }
  }
}

extensions:
  "webhook-inbox":
    enabled: true
    name: "webhook-inbox"
    type: streamable_http
    uri: "https://inbox.kymac.co/mcp"
    headers:
      "Authorization": "Bearer ${WEBHOOK_INBOX_TOKEN}"
      "X-API-Key": "${X_API_KEY}"
    timeout: 300

Placeholders to fill from your own secret store: ${WEBHOOK_INBOX_TOKEN}, ${X_API_KEY}. The registry never accepts secret values.

Quality 85 / 100good

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-03-26; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene86 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
pass
tools.annotations15 of 15 tools declare readOnlyHint or destructiveHint
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: credit_events (idempotentHint, openWorldHint); confirm_credits (idempotentHint, openWorldHint); health (idempotentHint, openWorldHint); …
pass
tools.token_costabout 1,316 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability100 · weight 15

pass
stability.changesno tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

15 tools, about 1,316 tokens to load them all · tool set efec4ba07012 · checked 2026-10-20 16:30 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 50 / 100

no-repositoryunreachable

provenance55

liveness0

freshness85

hygiene80

+dns-namespace +website -unreachable(11 failures) ~updated-33d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://inbox.kymac.co/mcp` streamable-http	none	no (11 failures)	56%	323 ms	2025-03-26	2026-09-23

Tools (15)

`capture_inbox`	Public capture (POST /c/{id}). No API key. No debit. Not an install entry. Stores raw body + headers for list_inbox_events. Rejects revoked (410 inbox_revoked) or expired (410 inbox_expired) inboxes. Body limit 1MB.
`checkout_credits`	Stripe TEST PaymentIntent for a pack (POST /credits/checkout). Intent only — returns credits_pending; credits are not granted or spendable until confirm_credits succeeds. Requires a caller key.
`confirm_credits`	Confirm a TEST PaymentIntent with Stripe test card pm_card_visa (POST /credits/confirm). This is when credits become granted/spendable (appends credit.purchase with credits_added). TEST only.
`credit_balance`read-only	Derived prepaid balance for this caller_id (GET /credits/balance).
`credit_events`read-only	Append-only Ledger events for this caller_id (GET /credits/events): credit.grant (first_key), credit.purchase, credit.debit reason=inbox_mint, optional credit.balance_snapshot.
`health`read-only	Public readiness (GET /health): billing (test\|live\|gated) and runner_ready. No key.
`issue_key`	Mint a caller key (POST /keys). Bot install starts at GET https://inbox.kymac.co/llms.txt (sole advertised entry). Secret whi_… is returned once. Prefer Authorization: Bearer; X-API-Key is an alias. First issue grants 1 free credit (credit.grant reason=first_key). Quote cost with quote_credits before mint_inbox.
`list_credit_packs`read-only	Prepaid TEST packs (GET /credits/packs). checkout_credits is intent only; credits grant after confirm_credits.
`list_inbox_events`read-only	Owner list (GET /inbox/{id}/events). Returns captured POSTs as JSON (headers + body). Does not debit. Other callers see 404.
`mint_inbox`	Mint a capture URL (POST /inbox). Install via GET https://inbox.kymac.co/llms.txt only. Prefer Authorization: Bearer; X-API-Key is an alias. First key includes 1 free credit. Quote first with quote_credits (no debit). Debits 1 credit on success (credit.debit reason=inbox_mint, request_id=inbox id). 201 body includes id, capture_url, expires_at, credits_remaining. HTTP fails use code/message/retryable/next (error aliases message). 401 next=refresh key. 402: code=insufficient_credits, retryable=false, next=buy credits.
`quote_credits`read-only	Dry-run cost for an op without debit (GET /credits/quote?op=inbox). Returns cost, balance, and would_succeed.
`revoke_inbox`destructive	Stop further captures (DELETE /inbox/{id}). Does not refund the mint debit. Owner only.
`revoke_key`destructive	Invalidate the presented secret (POST /keys/revoke). Same id is revoked; old secret then fails 401 invalid_api_key. Prefer Authorization: Bearer; X-API-Key is an alias only. No ops file-edit.
`rotate_key`	Replace the presented secret (POST /keys/rotate). Same id/caller_id and credits. New whi_… is returned once. Old secret then fails 401 invalid_api_key. Prefer Authorization: Bearer; X-API-Key is an alias only. No ops file-edit.
`verify_key`read-only	Confirm WEBHOOK_INBOX_API_KEY or Authorization: Bearer (GET /keys/verify). X-API-Key is an alias only. Does not echo the secret.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "co.kymac.inbox/webhook-inbox",
  "title": "webhook-inbox",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://inbox.kymac.co/mcp",
      "type": "streamable-http",
      "headers": [
        {
          "name": "Authorization",
          "isSecret": true,
          "description": "Bearer whi_… from POST /keys. Env WEBHOOK_INBOX_API_KEY."
        },
        {
          "name": "X-API-Key",
          "isSecret": true,
          "description": "Alternate to Authorization. Mint via POST /keys."
        }
      ]
    }
  ],
  "version": "0.4.1",
  "websiteUrl": "https://inbox.kymac.co/llms.txt",
  "description": "Ephemeral HTTPS inbox for bots: mint URL, capture POSTs, list JSON. TEST. https://inbox.kymac.co"
}