---
bezeichner: "io.fairseal/mcp-server"
art: "mcp_server"
slug: "io-fairseal-mcp-server"
paketkoordinate: "npm:@fairseal/mcp-server"
status: "aktiv"
homepage: "https://fairseal.io"
erhebungsstand: "2026-10-11T01:17:01.851Z"
namensraum: "io.fairseal"
registerseite: "https://tracevero.com/mcp/io-fairseal-mcp-server"
abgerufen_am: "2026-10-11"
zugangsdaten_erforderlich: false
ausfuehrungsort: "lokal"
dateisystem_pfadargument: false
quelloffen_einsehbar: true
roh_beschreibung: "Verifiable entropy, provably-fair games, and receipt verification for AI agents (FairSeal API)."
version: "0.2.4"
roh_umgebungsvariablen: "FAIRSEAL_API_KEY, FAIRSEAL_API_URL, FAIRSEAL_NOTARY_API_KEY, FAIRSEAL_ANCHOR_API_KEY"
roh_geheime_pflichtvariablen: ""
roh_transportarten: "stdio"
roh_pfadargumente: ""
roh_repository_url: "https://github.com/ned-del/fairseal"
roh_paketquellen: "npm"
roh_geheime_pflichtkopfzeilen: ""
roh_pfad_umgebungsvariablen: ""
roh_remote_adressen: ""
roh_remote_hosts: ""
roh_statusmeldung: ""
roh_veroeffentlicht_am: "2026-09-30"
roh_aktualisiert_am: "2026-09-30"
roh_schemafassung: "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json"
roh_bereitstellungsform: "paket"
roh_repository_quelle: "github"
roh_repository_unterordner: ""
roh_paketbezeichner: "@fairseal/mcp-server"
roh_paketversionen: "0.2.4"
roh_laufzeithinweise: ""
roh_umgebungsformate: ""
roh_umgebungsbeschreibungen: "FAIRSEAL_ANCHOR_API_KEY=Key override for Anchor API v2 only (POST /v2/anchor). Falls back to FAIRSEAL_API_KEY if not set. Key prefix: anck_. · FAIRSEAL_API_KEY=API key for gated tools (fairseal_entropy, fairseal_stats, fairseal_rng_generate, fairseal_notarize_decision, fairseal_anchor_submit). Key prefix: fsn_. Without a key these tools return 401; free tools (game reads, notarize_status, anchor_status) work without any key. x402 micropayment ($0.02 USDC on Base) is an alternative to the key for notarize/anchor. · FAIRSEAL_API_URL=Upstream API base URL (default https://api.fairseal.io). · FAIRSEAL_NOTARY_API_KEY=Key override for the notary service only (POST /v1/notarize). Falls back to FAIRSEAL_API_KEY if not set. Key prefix: fsn_."
roh_symbolformate: ""
roh_verbindungswege: "{\"packages\":[{\"registryType\":\"npm\",\"identifier\":\"@fairseal/mcp-server\",\"version\":\"0.2.4\",\"transport\":\"stdio\",\"environment\":[{\"name\":\"FAIRSEAL_API_KEY\",\"description\":\"API key for gated tools (fairseal_entropy, fairseal_stats, fairseal_rng_generate, fairseal_notarize_decision, fairseal_anchor_submit). Key prefix: fsn_. Without a key these tools return 401; free tools (game reads, notarize_status, anchor_status) work without any key. x402 micropayment ($0.02 USDC on Base) is an alternative to the key for notarize/anchor.\",\"required\":false,\"secret\":true},{\"name\":\"FAIRSEAL_API_URL\",\"description\":\"Upstream API base URL (default https://api.fairseal.io).\",\"required\":false,\"secret\":false},{\"name\":\"FAIRSEAL_NOTARY_API_KEY\",\"description\":\"Key override for the notary service only (POST /v1/notarize). Falls back to FAIRSEAL_API_KEY if not set. Key prefix: fsn_.\",\"required\":false,\"secret\":true},{\"name\":\"FAIRSEAL_ANCHOR_API_KEY\",\"description\":\"Key override for Anchor API v2 only (POST /v2/anchor). Falls back to FAIRSEAL_API_KEY if not set. Key prefix: anck_.\",\"required\":false,\"secret\":true}],\"additional_arguments_declared\":false}],\"remotes\":[]}"
---

# io.fairseal/mcp-server

## Measured values

| Property | Value | Source | Collected on | Level of trust | Raw declaration |
| --- | --- | --- | --- | --- | --- |
| Required secrets declared | false | MCP-Register | 2026-09-28T01:17:01.494Z | abgeleitet | roh_geheime_pflichtvariablen: ; roh_geheime_pflichtkopfzeilen: |
| Execution location | lokal | MCP-Register | 2026-09-28T01:17:01.494Z | abgeleitet | roh_transportarten: stdio |
| Path argument present | false | MCP-Register | 2026-09-28T01:17:01.494Z | abgeleitet | roh_pfadargumente: ; roh_pfad_umgebungsvariablen: |
| Repository URL listed | true | MCP-Register | 2026-09-28T01:17:01.494Z | abgeleitet | roh_repository_url: https://github.com/ned-del/fairseal |
| Description (raw) | Verifiable entropy, provably-fair games, and receipt verification for AI agents (FairSeal API). | MCP-Register | 2026-09-28T01:17:01.494Z | selbstauskunft |  |
| Declared version | 0.2.4 | MCP-Register | 2026-10-01T01:17:01.643Z | selbstauskunft |  |
| Environment variables (raw) | FAIRSEAL_API_KEY, FAIRSEAL_API_URL, FAIRSEAL_NOTARY_API_KEY, FAIRSEAL_ANCHOR_API_KEY | MCP-Register | 2026-10-01T01:17:01.643Z | selbstauskunft |  |
| Required secret variables (raw) |  | MCP-Register | 2026-09-28T01:17:01.494Z | selbstauskunft |  |
| Transports (raw) | stdio | MCP-Register | 2026-09-28T01:17:01.494Z | selbstauskunft |  |
| Path arguments (raw) |  | MCP-Register | 2026-09-28T01:17:01.494Z | selbstauskunft |  |
| Repository (raw) | https://github.com/ned-del/fairseal | MCP-Register | 2026-09-28T01:17:01.494Z | selbstauskunft |  |
| Package registries (raw) | npm | MCP-Register | 2026-09-28T01:17:01.494Z | selbstauskunft |  |
| Required secret headers (raw) |  | MCP-Register | 2026-09-28T01:17:01.494Z | selbstauskunft |  |
| Path environment variables (raw) |  | MCP-Register | 2026-09-28T01:17:01.494Z | selbstauskunft |  |
| Remote URLs (raw) |  | MCP-Register | 2026-09-28T01:17:01.494Z | selbstauskunft |  |
| Remote hosts (raw) |  | MCP-Register | 2026-09-28T01:17:01.494Z | selbstauskunft |  |
| Registry status message (raw) |  | MCP-Register | 2026-09-28T01:17:01.494Z | selbstauskunft |  |
| First listed in the registry (raw) | 2026-09-30 | MCP-Register | 2026-10-01T01:17:01.643Z | selbstauskunft |  |
| Last changed in the registry (raw) | 2026-09-30 | MCP-Register | 2026-10-01T01:17:01.643Z | selbstauskunft |  |
| Schema version of the raw record (raw) | https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json | MCP-Register | 2026-09-28T01:17:01.494Z | selbstauskunft |  |
| Delivery form (raw) | paket | MCP-Register | 2026-09-28T01:17:01.494Z | selbstauskunft |  |
| Repository platform (raw) | github | MCP-Register | 2026-09-28T01:17:01.494Z | selbstauskunft |  |
| Repository subfolder (raw) |  | MCP-Register | 2026-09-28T01:17:01.494Z | selbstauskunft |  |
| Package identifiers (raw) | @fairseal/mcp-server | MCP-Register | 2026-09-28T01:17:01.494Z | selbstauskunft |  |
| Package versions (raw) | 0.2.4 | MCP-Register | 2026-10-01T01:17:01.643Z | selbstauskunft |  |
| Runtime hints (raw) |  | MCP-Register | 2026-09-28T01:17:01.494Z | selbstauskunft |  |
| Environment variable formats (raw) |  | MCP-Register | 2026-09-28T01:17:01.494Z | selbstauskunft |  |
| Environment variable descriptions (raw) | FAIRSEAL_ANCHOR_API_KEY=Key override for Anchor API v2 only (POST /v2/anchor). Falls back to FAIRSEAL_API_KEY if not set. Key prefix: anck_. · FAIRSEAL_API_KEY=API key for gated tools (fairseal_entropy, fairseal_stats, fairseal_rng_generate, fairseal_notarize_decision, fairseal_anchor_submit). Key prefix: fsn_. Without a key these tools return 401; free tools (game reads, notarize_status, anchor_status) work without any key. x402 micropayment ($0.02 USDC on Base) is an alternative to the key for notarize/anchor. · FAIRSEAL_API_URL=Upstream API base URL (default https://api.fairseal.io). · FAIRSEAL_NOTARY_API_KEY=Key override for the notary service only (POST /v1/notarize). Falls back to FAIRSEAL_API_KEY if not set. Key prefix: fsn_. | MCP-Register | 2026-10-01T01:17:01.643Z | selbstauskunft |  |
| Icon formats (raw) |  | MCP-Register | 2026-09-28T01:17:01.494Z | selbstauskunft |  |
| Connection paths (source structure) | {"packages":[{"registryType":"npm","identifier":"@fairseal/mcp-server","version":"0.2.4","transport":"stdio","environment":[{"name":"FAIRSEAL_API_KEY","description":"API key for gated tools (fairseal_entropy, fairseal_stats, fairseal_rng_generate, fairseal_notarize_decision, fairseal_anchor_submit). Key prefix: fsn_. Without a key these tools return 401; free tools (game reads, notarize_status, anchor_status) work without any key. x402 micropayment ($0.02 USDC on Base) is an alternative to the key for notarize/anchor.","required":false,"secret":true},{"name":"FAIRSEAL_API_URL","description":"Upstream API base URL (default https://api.fairseal.io).","required":false,"secret":false},{"name":"FAIRSEAL_NOTARY_API_KEY","description":"Key override for the notary service only (POST /v1/notarize). Falls back to FAIRSEAL_API_KEY if not set. Key prefix: fsn_.","required":false,"secret":true},{"name":"FAIRSEAL_ANCHOR_API_KEY","description":"Key override for Anchor API v2 only (POST /v2/anchor). Falls back to FAIRSEAL_API_KEY if not set. Key prefix: anck_.","required":false,"secret":true}],"additional_arguments_declared":false}],"remotes":[]} | MCP-Register | 2026-10-01T01:17:01.643Z | selbstauskunft |  |

## Links

- Namespace: [[namensraum/io-fairseal|io.fairseal]]

---

- Registry page: <https://tracevero.com/mcp/io-fairseal-mcp-server>
- Retrieved on: 2026-10-11
