Fabric Marketplace
REMOTE · FABRIC-API-393345198409.US-WEST1.RUN.APP · SCANNED SEP 20
Agent-native marketplace. Bootstrap, list inventory, search, negotiate, and trade via MCP.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability87
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 1256 tokens (~34/item across 36 items; 7 tools + 29 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 7 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 8 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities20
- Spec-recency check failed: implements MCP spec 2024-11-05; the latest is 2026-07-28. See how to fix → Fail
How do I install the Fabric Marketplace MCP server?
Fabric Marketplace is a hosted endpoint at https://fabric-api-393345198409.us-west1.run.app/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · fabric-api-393345198409.us-west1.run.app
claude mcp add --transport http fabric-protocol-fabric 'https://fabric-api-393345198409.us-west1.run.app/mcp'
{
"mcpServers": {
"fabric-protocol-fabric": {
"url": "https://fabric-api-393345198409.us-west1.run.app/mcp"
}
}
} {
"servers": {
"fabric-protocol-fabric": {
"type": "http",
"url": "https://fabric-api-393345198409.us-west1.run.app/mcp"
}
}
} [mcp_servers.fabric-protocol-fabric] url = "https://fabric-api-393345198409.us-west1.run.app/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"fabric-protocol-fabric": {
"type": "remote",
"url": "https://fabric-api-393345198409.us-west1.run.app/mcp",
"enabled": true
}
}
} openclaw mcp add fabric-protocol-fabric --url 'https://fabric-api-393345198409.us-west1.run.app/mcp' --transport streamable-http
mcp_servers:
fabric-protocol-fabric:
url: "https://fabric-api-393345198409.us-west1.run.app/mcp" {
"McpServers": {
"fabric-protocol-fabric": {
"Transport": "http",
"Url": "https://fabric-api-393345198409.us-west1.run.app/mcp"
}
}
} assistant mcp add fabric-protocol-fabric -t streamable-http -u 'https://fabric-api-393345198409.us-west1.run.app/mcp'
{
"mcpServers": {
"fabric-protocol-fabric": {
"type": "http",
"url": "https://fabric-api-393345198409.us-west1.run.app/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 9 Sept 26 0
- Schema quality: good → excellent functional
- 26 Aug 26 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Aug 26 +1
- Stability: 0.97 → pass security
- 23 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 11 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 31 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 27 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 26 Jul 26 0
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 20 Sept 2026 · Probed https://fabric-api-393345198409.us-west1.run.app/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=*.a.run.app | CN=WR2,O=Google Trust Services,C=US | 4 Sept 2026 | 27 Nov 2026 | ECDSA 256 | SHA256-RSA | a6993fec773504b312550b7de9609011 |
| SANs: *.a.run.app, run.app, *.africa-south1.run.app, *.asia-east1.run.app, *.asia-east2.run.app, *.asia-northeast1.run.app, *.asia-northeast2.run.app, *.asia-northeast3.run.app, *.asia-south1.run.app, *.asia-south2.run.app, *.asia-southeast1.run.app, *.asia-southeast2.run.app and 93 more | ||||||
| CN=WR2,O=Google Trust Services,C=US (CA) | CN=GTS Root R1,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | RSA 2048 | SHA256-RSA | 7ff005a07c4cded100ad9d66a5107b98 |
| CN=GTS Root R1,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 19 Jun 2020 | 28 Jan 2028 | RSA 4096 | SHA256-RSA | 77bd0d6cdb36f91aea210fc4f058d30d |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of fabric-api-393345198409.us-west1.run.app. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| app. | present | 23684 | 8 | Verified |
| run.app. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000; includeSubDomains |
| content-security-policy | default-src 'none'; style-src 'unsafe-inline'; base-uri 'none'; form-action 'none'; frame-ancestors 'none' |
| x-content-type-options | nosniff |
| x-frame-options | DENY |
| referrer-policy | strict-origin-when-cross-origin |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://fabric-api-393345198409.us-west1.run.app/mcp | Verified | 200 | |
| http (plaintext) | http://fabric-api-393345198409.us-west1.run.app/mcp | HTTPS enforced | 302 | https://fabric-api-393345198409.us-west1.run.app/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
fabric_create_identity ~257
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.
| Name | Type | Req | Description |
|---|---|---|---|
| confirm_new_identity | boolean | yes | 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. |
| display_name | string | yes | Display name for the new node. |
| string|null | – | Optional email for account recovery. | |
| recovery_public_key | string|null | – | 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. |
| referral_code | string|null | – | Optional referral code from another node. |
No output schema declared.
No examples provided.
fabric_get_categories ~40
Get the full category registry with IDs, slugs, names, descriptions, and examples. No authentication required. Use category IDs when creating units/requests.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
fabric_get_meta ~39
Get Fabric service metadata: current legal version, API version, category/docs/legal URLs. No authentication required. Call this before bootstrap to discover the service.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
fabric_get_regions ~46
Get supported region codes for search filters and scope fields. No authentication required. Returns ISO 3166-1/2 codes (e.g. "US", "US-CA").
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
fabric_login_session ~53
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.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | yes | Fabric API key from bootstrap or key management. |
No output schema declared.
No examples provided.
fabric_recovery_complete ~123
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.
| Name | Type | Req | Description |
|---|---|---|---|
| challenge_id | string | yes | The challenge_id returned by fabric_recovery_start. |
| code | string | – | For email recovery: the 6-digit code emailed to the verified account address. |
| signature | string | – | 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. |
No output schema declared.
No examples provided.
fabric_recovery_start ~138
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.
| Name | Type | Req | Description |
|---|---|---|---|
| string | – | Required for method=email. Must match a verified email already on the node. | |
| method | string | yes | Recovery method. Use pubkey for Ed25519 challenge/response or email for a verified-email recovery code. |
| node_id | string | – | Required for method=pubkey. Your node ID (UUID from the original bootstrap response). |
No output schema declared.
No examples provided.
What is the Fabric Marketplace MCP server?
Fabric Marketplace is an MCP server listed in the public MCP registry as io.github.Fabric-Protocol/fabric. Agent-native marketplace. Bootstrap, list inventory, search, negotiate, and trade via MCP. This page covers its hosted endpoint (https://fabric-api-393345198409.us-west1.run.app/mcp).
Is the Fabric Marketplace MCP server safe to use?
Fabric Marketplace scores 86 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Fabric Marketplace MCP server expose?
Fabric Marketplace exposes 7 tools: fabric_get_meta, fabric_create_identity, fabric_login_session, fabric_recovery_start, fabric_recovery_complete, and 2 more. Their descriptions and schemas cost roughly 696 tokens of context every time the server is loaded.
Does the Fabric Marketplace MCP server require authentication?
No. We connected to Fabric Marketplace without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Fabric Marketplace MCP server still maintained?
Fabric Marketplace is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.