@fairseal/mcp-server

MCPcommunity

v0.2.3FairSealMITUpdated 8d agonpm GitHub

MCP server for FairSeal — verifiable entropy, provably-fair games, and cryptographic receipt verification for AI agents (stdio transport).

Works in

ClaudeCursorCopilotGemini

Inferred from the transports this listing declares (stdio). A client not listed here hasn’t been ruled out — it just isn’t something Forge can confirm.

Automatically indexed from public sources. Not yet verified by the developer on Forge.Claim this listing →

238Downloads/wk

8d agoLast update

Reads these credentials

FAIRSEAL_API_KEYAPI keyoptional
Optional API key sent as Bearer header (live API currently requires no auth; any placeholder works).

Declared by the author in the official MCP registry. Forge does not store, broker, or ever see these values — the config below is scaffolded with placeholders you fill in locally.

Package

AuthorFairSeal

LicenseMIT

Version0.2.3

Sourcenpm+mcp-registry

npm@fairseal/mcp-server

GitHubned-del/fairseal

SBOMCycloneDX 1.6 ↓

Trust Status

B

60/100Good

✓Listed in Forge index+10/10

—Publisher identity verified+0/20

→ Publisher: run `forge publish` from the package repo to claim ownership

—Ed25519 publish signature+0/5

→ Included automatically when the publisher runs `forge publish`

—Domain verification+0/5

→ Publisher: host /.well-known/forge.json on the package homepage with { "publisher": "<github-login>" }

—npm Trusted Publishing (Sigstore)+0/5

→ Publish from GitHub Actions with --provenance so the attestation binds this package to this repo

—npm maintainer match+0/5

→ Earned once your identity is verified above and that login is an npm maintainer of this package

✓CVE scan · clean+30/30

✓Static analysis · clean+20/20

Paste into Claude Code, Cursor, or any AI assistant to fix all gaps

StatusCommunity-indexed

PublisherUnverified

SignatureUnsigned

Domain—

Provenance—

Dependencies✓ 60 resolved+ · none vulnerable

Tool surface13 tools · none privileged

Security scan✓ Cleanv0.1.3 · 1mo agoHow well does this scan work?

EvalsNone

IndexedAug 18, 2026

Verification confirms publisher identity (repo ownership), not code safety. The security scan covers known CVEs and suspicious install scripts.

Tools

13 tools · none privileged

Statically extracted from the published packagev0.1.3 · 1mo ago

Read out of the source npm actually ships, at scan time. The package was never executed. Tools registered dynamically at runtime, or hidden inside bundled or minified code, can be missed — so this is a floor on the tool surface, not a complete census of it.

Filter toolsPrivileged only

fairseal_entropyFetch raw verifiable entropy from the latest resolved VDF epoch at api.fairseal.io. Read-only. [requires FAIRSEAL_API_KEY]

Fetch raw verifiable entropy from the latest resolved VDF epoch at api.fairseal.io. Read-only. [requires FAIRSEAL_API_KEY]

No input schema was published for this tool.

fairseal_games_catalogList available provably-fair games (sicbo, dice, gacha, slots) with bet types and endpoints. Read-only.

List available provably-fair games (sicbo, dice, gacha, slots) with bet types and endpoints. Read-only.

No input schema was published for this tool.

fairseal_statsFairSeal entropy engine statistics. Read-only. [requires FAIRSEAL_API_KEY]

FairSeal entropy engine statistics. Read-only. [requires FAIRSEAL_API_KEY]

No input schema was published for this tool.

fairseal_recent_gamesList recently resolved games (useful to find game_ids to verify). Read-only.

List recently resolved games (useful to find game_ids to verify). Read-only.

No input schema was published for this tool.

fairseal_game_resultFetch the result of a game by game_id (poll until resolved). Read-only.

Fetch the result of a game by game_id (poll until resolved). Read-only.

No input schema was published for this tool.

fairseal_verify_gameVerify the fairness of a completed game. Returns VDF proof data and replay steps for independent verification. Read-only.

Verify the fairness of a completed game. Returns VDF proof data and replay steps for independent verification. Read-only.

No input schema was published for this tool.

fairseal_rng_generateRequest raw verifiable random number generation (resolves after next VDF epoch, ~5s). Returns a poll URL / game_id. [requires FAIRSEAL_API_KEY]

Request raw verifiable random number generation (resolves after next VDF epoch, ~5s). Returns a poll URL / game_id. [requires FAIRSEAL_API_KEY]

No input schema was published for this tool.

fairseal_sicbo_betPlace a three-dice Sic Bo bet. Outcomes provably fair via VDF. Resolves after next epoch (~5s); use fairseal_game_result to poll.

Place a three-dice Sic Bo bet. Outcomes provably fair via VDF. Resolves after next epoch (~5s); use fairseal_game_result to poll.

No input schema was published for this tool.

fairseal_dice_betPlace a two-dice bet (exact/over7/under7/odd/even). Resolves after next epoch (~5s).

Place a two-dice bet (exact/over7/under7/odd/even). Resolves after next epoch (~5s).

No input schema was published for this tool.

fairseal_gacha_pullPull a weighted loot box (standard or premium pool). Provably fair via VDF.

Pull a weighted loot box (standard or premium pool). Provably fair via VDF.

No input schema was published for this tool.

fairseal_slots_spinSpin the 5-reel 3-row slot machine with wild substitution. Provably fair via VDF.

Spin the 5-reel 3-row slot machine with wild substitution. Provably fair via VDF.

No input schema was published for this tool.

fairseal_anchor_submitPREVIEW STUB of the future Anchor API v2 (POST /v2/anchor). Simulates queuing a commitment hash for Merkle-batch anchoring to Base. No payment, no chain writes.

PREVIEW STUB of the future Anchor API v2 (POST /v2/anchor). Simulates queuing a commitment hash for Merkle-batch anchoring to Base. No payment, no chain writes.

No input schema was published for this tool.

fairseal_anchor_statusPREVIEW STUB of the future Anchor API v2 (GET /v2/anchor/{id}). Each poll advances the simulated lifecycle: queued → batched (Merkle proof) → anchored (simulated tx hash).

PREVIEW STUB of the future Anchor API v2 (GET /v2/anchor/{id}). Each poll advances the simulated lifecycle: queued → batched (Merkle proof) → anchored (simulated tx hash).

No input schema was published for this tool.

13 of 13 tools published a description.

Tool names and descriptions are written by the publisher and shown verbatim as inert text. They are the strings an MCP client passes to a model, so Forge scans them for prompt-injection patterns — any finding appears with the security scan above. “Privileged” is a keyword match on the tool name, not an audit of what the tool does: a benign-sounding name can still do anything.

About

MCP server for FairSeal — verifiable entropy, provably-fair games, and cryptographic receipt verification for AI agents (stdio transport).

Keywords

mcpmodel-context-protocolfairsealverifiable-randomnessvdfprovably-fairentropyai-agentsx402receipts

Alternatives

Comparing tool surfaces…

Tools exposed

13 tools · none privileged · observed 2026-09-01 by static extraction. A tool surface is what one scan read on one day, not a live capability list.

fairseal_entropy
fairseal_games_catalog
fairseal_stats
fairseal_recent_games
fairseal_game_result
fairseal_verify_game
fairseal_rng_generate
fairseal_sicbo_bet
fairseal_dice_bet
fairseal_gacha_pull
fairseal_slots_spin
fairseal_anchor_submit
fairseal_anchor_status

Linked names open Forge’s index of every entry observed exposing that tool. Browse all indexed tools.

Dependency tree

What one Forge scan resolved from npm metadata on 2026-09-01 — observed resolution, not a publisher declaration.

60 packages resolved · 2 direct · none carrying advisories Resolution stops at depth 4 and 60 packages.

zod4.5.4
@modelcontextprotocol/sdk1.30.017 dependencies
- ajv8.20.04 dependencies
  - fast-deep-equal3.1.3
  - fast-uri3.1.6
  - json-schema-traverse1.0.0
  - require-from-string2.0.2
- zod4.5.4shown above
- cors2.8.62 dependencies
  - object-assign4.1.1
  - vary1.1.2
- hono4.13.5
- jose6.2.10
- express5.2.1+26 not drawn2 dependencies
  - vary1.1.2shown above
  - content-type1.0.5
- raw-body3.0.2+4 not drawn
- ajv-formats3.0.11 dependency
  - ajv8.20.0shown above
- cross-spawn7.0.6+3 not drawn
- eventsource3.0.71 dependency
  - eventsource-parser3.1.1
- content-type1.0.5shown above
- pkce-challenge5.0.1
- @hono/node-server2.1.1
- json-schema-typed8.0.2
- eventsource-parser3.1.1shown above
- express-rate-limit8.7.0+2 not drawn
- zod-to-json-schema3.25.2

The crawl stopped at the depth-4 limit. Anything below that level was never resolved.

The crawl stopped at the 60-package limit. The rest of the tree was never resolved.

36 more resolved packages are not drawn here (display cap: 24). Every dependency carrying an advisory is drawn regardless of the cap. Full inventory (CycloneDX SBOM)

Declared but not resolved

53 declared dependencies never landed in the tree. They are missing from Forge's resolution, not from the package.

package cap reached: 48
below the depth cap: 5

http-errors ^2.0.1 — required by send@1.2.1package cap reached
mime-types ^3.0.2 — required by send@1.2.1package cap reached
ms ^2.1.3 — required by send@1.2.1package cap reached
on-finished ^2.4.1 — required by send@1.2.1package cap reached
range-parser ^1.2.1 — required by send@1.2.1package cap reached
statuses ^2.0.2 — required by send@1.2.1package cap reached
ms ^2.1.3 — required by debug@4.4.3package cap reached
debug ^4.4.0 — required by router@2.2.0package cap reached
depd ^2.0.0 — required by router@2.2.0package cap reached
is-promise ^4.0.0 — required by router@2.2.0package cap reached
parseurl ^1.3.3 — required by router@2.2.0package cap reached
path-to-regexp ^8.0.0 — required by router@2.2.0package cap reached

+41 more not listed. The counts by reason above cover all of them.

Not followed: peerDependencies. This tree covers runtime dependencies only, so anything those pull in was never resolved.