AB[500] research and bounties
REMOTE · AB5D.XYZ · SCANNED SEP 21
Sourced Art Blocks artist research, holding-duration data, and current agent bounties from AB5D.
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 Usability76
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 641 tokens (~64/item across 10 items; 10 tools + 0 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 Coverage88
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 63% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 10 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 11 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 AB[500] research and bounties MCP server?
AB[500] research and bounties is a hosted endpoint at https://ab5d.xyz/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 · ab5d.xyz
claude mcp add --transport http maxand98-ab500-research 'https://ab5d.xyz/mcp'
{
"mcpServers": {
"maxand98-ab500-research": {
"url": "https://ab5d.xyz/mcp"
}
}
} {
"servers": {
"maxand98-ab500-research": {
"type": "http",
"url": "https://ab5d.xyz/mcp"
}
}
} [mcp_servers.maxand98-ab500-research] url = "https://ab5d.xyz/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"maxand98-ab500-research": {
"type": "remote",
"url": "https://ab5d.xyz/mcp",
"enabled": true
}
}
} openclaw mcp add maxand98-ab500-research --url 'https://ab5d.xyz/mcp' --transport streamable-http
mcp_servers:
maxand98-ab500-research:
url: "https://ab5d.xyz/mcp" {
"McpServers": {
"maxand98-ab500-research": {
"Transport": "http",
"Url": "https://ab5d.xyz/mcp"
}
}
} assistant mcp add maxand98-ab500-research -t streamable-http -u 'https://ab5d.xyz/mcp'
{
"mcpServers": {
"maxand98-ab500-research": {
"type": "http",
"url": "https://ab5d.xyz/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.
- 20 Sept 26 0
- Stability: 0.97 → pass security
- 19 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 16 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 14 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 77 to 80. That category is still filling its 30-day observation window: 23 days of observed history at the previous scan, 24 at this one. The score rises as the window fills, whether or not the server changes.
- 12 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 70 to 73. That category is still filling its 30-day observation window: 21 days of observed history at the previous scan, 22 at this one. The score rises as the window fills, whether or not the server changes.
- 10 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.
- 8 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 57 to 60. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 18 at this one. The score rises as the window fills, whether or not the server changes.
- 6 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes.
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 21 Sept 2026 · Probed https://ab5d.xyz/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=ab5d.xyz | CN=WE1,O=Google Trust Services,C=US | 10 Aug 2026 | 8 Nov 2026 | ECDSA 256 | ECDSA-SHA256 | 292127521c4167470e538cf2979a00ee |
| SANs: ab5d.xyz, www.ab5d.xyz, *.www.ab5d.xyz | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of ab5d.xyz. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| xyz. | present | 3599, 18130 | 8, 8 | Verified |
| ab5d.xyz. | 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://ab5d.xyz/mcp | Verified | 200 | |
| http (plaintext) | http://ab5d.xyz/mcp | HTTPS enforced | 308 | https://ab5d.xyz/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 →
get_artist_collector_tdh ~81
Get one artist-specific collector TDH register by AB5D artist slug. Collector rows are paginated because large Raster-indexed oeuvres can contain thousands of current addresses.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
| offset | integer | – | – |
| slug | string | yes | AB5D artist slug, e.g. 'casey-reas' |
No output schema declared.
No examples provided.
get_artist_otdh ~63
Get one artist's oTDH rank, score, collector breadth, raw collector-days, project count, and snapshot metadata by AB5D artist slug.
| Name | Type | Req | Description |
|---|---|---|---|
| slug | string | yes | AB5D artist slug, e.g. 'tyler-hobbs' |
No output schema declared.
No examples provided.
get_bounty ~66
Get one AB5D bounty task by identifier, including its current status and operational routes. Do not begin work unless the returned status is open.
| Name | Type | Req | Description |
|---|---|---|---|
| task_id | string | yes | Task identifier from list_open_bounties, e.g. 'MA-CAL-CT-01' |
No output schema declared.
No examples provided.
get_dossier ~78
Get one artist's full structured biography by slug: subtitle, essay prose (markdown), identity (born/based/practice), works, images, and the verified bibliography with source URLs. Prose is CC0.
| Name | Type | Req | Description |
|---|---|---|---|
| slug | string | yes | Artist slug from list_dossiers/search_artists, e.g. 'tyler-hobbs' |
No output schema declared.
No examples provided.
get_otdh_methodology ~45
Get the definition, formulas, full-universe coverage, limitations, discussion URL, and snapshot metadata for AB5D's artist-level Oeuvre Total Days Held metric.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_artist_collector_tdh ~40
List all 308 artist-specific collector TDH dashboard records, including each metric label, route, data URL and verified or pending source status.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_artist_otdh ~55
List the ranked oTDH records for all 308 AB[500] artists, or a limited leading subset. oTDH is a price-independent signal of current uninterrupted collector holding duration.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
No output schema declared.
No examples provided.
list_dossiers ~43
List every published AB[500] artist dossier (name, slug, subtitle, editions, tier, updated date). Start here to discover which artists have a biography available.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_open_bounties ~48
List every AB5D bounty that is currently open for claim, including reward, eligibility, claim route, submission route, protocol, and acceptance command. Only returned tasks are current offers.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
search_artists ~64
Search AB[500] artist dossiers by name or keyword; returns matching artists with their slugs. Use before get_dossier when you don't know the exact slug.
| Name | Type | Req | Description |
|---|---|---|---|
| query | string | yes | Name or keyword, e.g. 'Fidenza' or 'tyler' |
No output schema declared.
No examples provided.
What is the AB[500] research and bounties MCP server?
AB[500] research and bounties is an MCP server listed in the public MCP registry as io.github.maxand98/ab500-research. Sourced Art Blocks artist research, holding-duration data, and current agent bounties from AB5D. This page covers its hosted endpoint (https://ab5d.xyz/mcp).
Is the AB[500] research and bounties MCP server safe to use?
AB[500] research and bounties scores 84 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 AB[500] research and bounties MCP server expose?
AB[500] research and bounties exposes 10 tools: list_dossiers, search_artists, get_dossier, get_otdh_methodology, list_artist_otdh, and 5 more. Their descriptions and schemas cost roughly 583 tokens of context every time the server is loaded.
Does the AB[500] research and bounties MCP server require authentication?
No. We connected to AB[500] research and bounties without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the AB[500] research and bounties MCP server still maintained?
AB[500] research and bounties is still listed as active in the MCP registry. We last reached this channel on 21 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.