GAIP Broker
REMOTE · GAIP-AGENT-TO-ART-PROTOTYPE-PRODUCTION.UP.RAILWAY.APP · SCANNED SEP 20
GAIP delegation evidence, £0 read-only execution and receipt verification; no caller decision.
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 Security74
- 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
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- 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 Usability69
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 694 tokens (~49/item across 14 items; 14 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management10
- Stability observed for 3 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage67
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 0% of tool parameters carry a description.Fail
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "gaip_run_governed_agent_loop" implies "execute" and declares readOnlyHint instead, contradicting what its own name says it does. See how to fix → Fail
- An AI judge read all 15 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the GAIP Broker MCP server?
GAIP Broker is a hosted endpoint at https://gaip-agent-to-art-prototype-production.up.railway.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 · gaip-agent-to-art-prototype-production.up.railway.app
claude mcp add --transport http tjcgraham-rgb-gaip-broker 'https://gaip-agent-to-art-prototype-production.up.railway.app/mcp'
{
"mcpServers": {
"tjcgraham-rgb-gaip-broker": {
"url": "https://gaip-agent-to-art-prototype-production.up.railway.app/mcp"
}
}
} {
"servers": {
"tjcgraham-rgb-gaip-broker": {
"type": "http",
"url": "https://gaip-agent-to-art-prototype-production.up.railway.app/mcp"
}
}
} [mcp_servers.tjcgraham-rgb-gaip-broker] url = "https://gaip-agent-to-art-prototype-production.up.railway.app/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"tjcgraham-rgb-gaip-broker": {
"type": "remote",
"url": "https://gaip-agent-to-art-prototype-production.up.railway.app/mcp",
"enabled": true
}
}
} openclaw mcp add tjcgraham-rgb-gaip-broker --url 'https://gaip-agent-to-art-prototype-production.up.railway.app/mcp' --transport streamable-http
mcp_servers:
tjcgraham-rgb-gaip-broker:
url: "https://gaip-agent-to-art-prototype-production.up.railway.app/mcp" {
"McpServers": {
"tjcgraham-rgb-gaip-broker": {
"Transport": "http",
"Url": "https://gaip-agent-to-art-prototype-production.up.railway.app/mcp"
}
}
} assistant mcp add tjcgraham-rgb-gaip-broker -t streamable-http -u 'https://gaip-agent-to-art-prototype-production.up.railway.app/mcp'
{
"mcpServers": {
"tjcgraham-rgb-gaip-broker": {
"type": "http",
"url": "https://gaip-agent-to-art-prototype-production.up.railway.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.
- 19 Sept 26 −2
- Schema quality: 33 → 49 ▼ functional
- Destructive annotations: pass → 0 functional
- Server version: 1.1.0 → 1.3.0 functional
- New tool “gaip_get_counterparty_evidence” functional
- New tool “gaip_get_external_service_qualification” functional
- New tool “gaip_prepare_delegation_evidence” functional
- New tool “gaip_run_governed_agent_loop” functional
- New tool “verify_before_call” functional
- New tool “verify_gaip_receipt” functional
- 18 Sept 26 +1
- Schema quality: 236 → 271 ▼ functional
- Stability: unverified → 0.03 ▲ functional
- New tool “gaip_get_identity_and_registry_status” functional
- 17 Sept 26 68
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://gaip-agent-to-art-prototype-production.up.railway.app/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=*.up.railway.app | CN=YE1,O=Let's Encrypt,C=US | 29 Jul 2026 | 27 Oct 2026 | ECDSA 256 | ECDSA-SHA384 | 6da79bb561da3efeb0e751ca21abd3999fe |
| SANs: *.up.railway.app, up.railway.app | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of gaip-agent-to-art-prototype-production.up.railway.app. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| app. | present | 23684 | 8 | Verified |
| railway.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 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://gaip-agent-to-art-prototype-production.up.railway.app/mcp | Verified | 200 | |
| http (plaintext) | http://gaip-agent-to-art-prototype-production.up.railway.app/mcp | HTTPS enforced | 301 | https://gaip-agent-to-art-prototype-production.up.railway.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 →
assess_agent_card Assess an A2A Agent Card ~36
Assess supplied public Agent Card metadata without calling the agent.
| Name | Type | Req | Description |
|---|---|---|---|
| agent_card | object | yes | – |
| source_url | string | – | – |
No output schema declared.
No examples provided.
compare_agent_candidates Compare agent candidates ~36
Rank supplied public Agent Cards using deterministic task-specific metadata checks.
| Name | Type | Req | Description |
|---|---|---|---|
| candidates | array | yes | – |
| task_class | string | – | – |
No output schema declared.
No examples provided.
gaip_get_capabilities Get GAIP capabilities ~23
Return GAIP's public read-only capability and governance boundary.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
gaip_get_counterparty_evidence Get counterparty evidence ~98
Return task-specific evidence coverage for a supplied public counterparty reference without a score, certification, recommendation or delegation decision.
| Name | Type | Req | Description |
|---|---|---|---|
| comparable_task_receipts | integer | – | – |
| counterparty_identity_state | string | – | – |
| counterparty_ref | object | yes | – |
| data_classification | string | yes | – |
| independent_outcomes | integer | – | – |
| observations | array | – | – |
| task_class | string | yes | – |
No output schema declared.
No examples provided.
gaip_get_external_service_qualification Qualify GAIP external services ~35
Run bounded read-only probes and return explicit connected, degraded, metadata-only, blocked or not-registered states.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
gaip_get_governance_limits Get governance limits ~26
Return the machine-readable Phase-1 external-participation policy.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
gaip_get_identity_and_registry_status Get GAIP identity and registry status ~35
Return truthful A2A, MCP, Entra Agent ID and ERC-8004 activation states and blockers.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
gaip_get_shadow_status Get autonomous shadow status ~27
Return the latest public shadow-planning status. Shadow activity is not live execution.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
gaip_prepare_delegation_evidence Prepare delegation evidence ~67
Package supplied public evidence for a caller-owned delegation decision without a live probe, verdict or authority expansion.
| Name | Type | Req | Description |
|---|---|---|---|
| counterparty_ref | object | yes | – |
| data_classification | string | yes | – |
| observations | array | – | – |
| task_class | string | yes | – |
No output schema declared.
No examples provided.
gaip_run_governed_agent_loop Run governed agent loop ~128
Execute the existing Broker → Integration → Trust → Specialist loop for a £0 public read-only task and retain its receipt.
| Name | Type | Req | Description |
|---|---|---|---|
| counterparty_id | string | yes | – |
| data_classification | string | yes | – |
| discovery_source | string | – | – |
| downstream_use_intended | boolean | – | – |
| explicit_read_only_consent | boolean | yes | – |
| independent_operator_id | string | – | – |
| operator_claimed_unaided | boolean | – | – |
| protocol | string | – | – |
| task | object | – | – |
| task_class | string | yes | – |
No output schema declared.
No examples provided.
get_public_receipt Get a public GAIP receipt ~31
Retrieve allow-listed public fields for a retained receipt by exact id.
| Name | Type | Req | Description |
|---|---|---|---|
| receipt_id | string | yes | – |
No output schema declared.
No examples provided.
verify_before_call Verify before call ~60
Return sourced task-specific counterparty evidence before delegation. Evidence only; caller owns the decision.
| Name | Type | Req | Description |
|---|---|---|---|
| counterparty_ref | object | yes | – |
| data_classification | string | yes | – |
| observations | array | – | – |
| task_class | string | yes | – |
No output schema declared.
No examples provided.
verify_gaip_receipt Verify a GAIP receipt ~35
Verify a retained receipt's hash chain and Merkle inclusion proof by exact id.
| Name | Type | Req | Description |
|---|---|---|---|
| receipt_id | string | yes | – |
No output schema declared.
No examples provided.
verify_task_result Verify a task result ~35
Verify a supplied result against explicit deterministic acceptance criteria.
| Name | Type | Req | Description |
|---|---|---|---|
| acceptance_criteria | array | yes | – |
| result | object | yes | – |
No output schema declared.
No examples provided.
What is the GAIP Broker MCP server?
GAIP Broker is an MCP server listed in the public MCP registry as io.github.tjcgraham-rgb/gaip-broker. GAIP delegation evidence, £0 read-only execution and receipt verification; no caller decision. This page covers its hosted endpoint (https://gaip-agent-to-art-prototype-production.up.railway.app/mcp).
Is the GAIP Broker MCP server safe to use?
GAIP Broker scores 67 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 GAIP Broker MCP server expose?
GAIP Broker exposes 14 tools: gaip_get_capabilities, gaip_get_shadow_status, gaip_get_governance_limits, gaip_get_identity_and_registry_status, assess_agent_card, and 9 more. Their descriptions and schemas cost roughly 672 tokens of context every time the server is loaded.
Does the GAIP Broker MCP server require authentication?
No. We connected to GAIP Broker without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the GAIP Broker MCP server still maintained?
GAIP Broker 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.