MCP Server

Fabric Marketplace

io.github.Fabric-Protocol/fabric
Business & Operations Commerce & Retail Public & reachable MCP 2026-07-28

What this MCP does

Provides marketplace identities and metadata for discovering, negotiating, and trading inventory through the Fabric marketplace.

fabric_create_identity
Create a new Fabric participant identity (node) and receive an API key + 500 free credits. This creates a new participant identity; it is not a credential refresh tool. Do not use this if the participant already has a node. Reuse the current API key/header, use fabric_login_session when headers are unavailable, or use recovery if the API key is lost. No authentication required. Returns the node profile, API key, initial credit grant, and setup guidance. After creation, immediately persist node.id + api_key, configure recovery_public_key, and configure event_webhook_url or polling.
Input schema
{'type': 'object', 'required': ['confirm_new_identity', 'display_name'], 'properties': {'email': {'type': ['string', 'null'], 'description': 'Optional email for account recovery.'}, 'display_name': {'type': 'string', 'description': 'Display name for the new node.'}, 'referral_code': {'type': ['string', 'null'], 'description': 'Optional referral code from another node.'}, 'recovery_public_key': {'type': ['string', 'null'], 'description': 'Ed25519 public key for account recovery. SPKI PEM is recommended; raw 32-byte hex is also accepted for compatibility. Strongly recommended for autonomous recovery. Also verify email as a backup lane.'}, 'confirm_new_identity': {'enum': [True], 'type': 'boolean', 'description': 'Required safety confirmation. Set confirm_new_identity=true only when you intend to create a brand-new Fabric participant identity and no existing node should be reused.'}}, 'additionalProperties': False}
fabric_get_categories
Get the full category registry with IDs, slugs, names, descriptions, and examples. No authentication required. Use category IDs when creating units/requests.
Read only Idempotent
Input schema
{'type': 'object', 'properties': {}, 'additionalProperties': False}
fabric_get_meta
Get Fabric service metadata: current legal version, API version, category/docs/legal URLs. No authentication required. Call this before bootstrap to discover the service.
Read only Idempotent
Input schema
{'type': 'object', 'properties': {}, 'additionalProperties': False}
fabric_get_regions
Get supported region codes for search filters and scope fields. No authentication required. Returns ISO 3166-1/2 codes (e.g. "US", "US-CA").
Read only Idempotent
Input schema
{'type': 'object', 'properties': {}, 'additionalProperties': False}
fabric_login_session
Create a short-lived MCP session token from an API key. Use this when your MCP runtime cannot reliably set Authorization headers. No authentication required.
Input schema
{'type': 'object', 'required': ['api_key'], 'properties': {'api_key': {'type': 'string', 'description': 'Fabric API key from bootstrap or key management.'}}, 'additionalProperties': False}
fabric_recovery_complete
Complete account recovery by providing either the Ed25519 signature for a pubkey challenge or the 6-digit email recovery code. Returns a new API key. No authentication required.
Input schema
{'type': 'object', 'required': ['challenge_id'], 'properties': {'code': {'type': 'string', 'description': 'For email recovery: the 6-digit code emailed to the verified account address.'}, 'signature': {'type': 'string', 'description': 'For pubkey recovery: Ed25519 signature of the challenge (hex or base64). Sign the challenge bytes with the private key corresponding to your recovery_public_key.'}, 'challenge_id': {'type': 'string', 'description': 'The challenge_id returned by fabric_recovery_start.'}}, 'additionalProperties': False}
fabric_recovery_start
Start account recovery if you lost your API key. Use method=pubkey with node_id to receive a nonce you sign with your Ed25519 recovery key, or use method=email with a verified email address to receive a 6-digit recovery code. No authentication required.
Input schema
{'type': 'object', 'required': ['method'], 'properties': {'email': {'type': 'string', 'description': 'Required for method=email. Must match a verified email already on the node.'}, 'method': {'enum': ['pubkey', 'email'], 'type': 'string', 'description': 'Recovery method. Use pubkey for Ed25519 challenge/response or email for a verified-email recovery code.'}, 'node_id': {'type': 'string', 'description': 'Required for method=pubkey. Your node ID (UUID from the original bootstrap response).'}}, 'additionalProperties': False}
Added
fabric_get_regions
Sept. 17, 2026, 12:41 p.m.
Added
fabric_get_categories
Sept. 17, 2026, 12:41 p.m.
Added
fabric_recovery_complete
Sept. 17, 2026, 12:41 p.m.
Added
fabric_recovery_start
Sept. 17, 2026, 12:41 p.m.
Added
fabric_login_session
Sept. 17, 2026, 12:41 p.m.
Added
fabric_create_identity
Sept. 17, 2026, 12:41 p.m.
Added
fabric_get_meta
Sept. 17, 2026, 12:41 p.m.