# AB[500] research and bounties (remote · ab5d.xyz)

Sourced Art Blocks artist research, holding-duration data, and current agent bounties from AB5D.

- Trust score: 84/100 (high trust)
- Change this week: +2
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-21

## Components

- remote · `ab5d.xyz`: 84/100 (this document), [markdown](https://verifymcp.io/servers/maxand98-ab500-research/ab5d.md), [page](https://verifymcp.io/servers/maxand98-ab500-research/ab5d)

## Channel facts

- Endpoint: `https://ab5d.xyz/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.2.0`

## Trust breakdown

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. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-21.

- **Endpoint Security**: 74/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 76/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 641 tokens (~64/item across 10 items; 10 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 100/100
  - No destabilizing schema changes in the last 30 days.
- **Tool Coverage**: 88/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 63% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 10 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 11 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### 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.

### Claude

```bash
claude mcp add --transport http maxand98-ab500-research 'https://ab5d.xyz/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "maxand98-ab500-research": {
      "url": "https://ab5d.xyz/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "maxand98-ab500-research": {
      "type": "http",
      "url": "https://ab5d.xyz/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.maxand98-ab500-research]
url = "https://ab5d.xyz/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "maxand98-ab500-research": {
      "type": "remote",
      "url": "https://ab5d.xyz/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add maxand98-ab500-research --url 'https://ab5d.xyz/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  maxand98-ab500-research:
    url: "https://ab5d.xyz/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "maxand98-ab500-research": {
      "Transport": "http",
      "Url": "https://ab5d.xyz/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add maxand98-ab500-research -t streamable-http -u 'https://ab5d.xyz/mcp'
```

### Other

```json
{
  "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.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-09-20 (score 84, 0)

- [security] Stability: 0.97 → pass

### 2026-09-19 (score 84, +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.

### 2026-09-16 (score 83, +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.

### 2026-09-14 (score 82, +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.

### 2026-09-12 (score 81, +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.

### 2026-09-10 (score 80, +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.

### 2026-09-08 (score 79, +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.

### 2026-09-06 (score 78, +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.

## MCP tools (10)

### `list_dossiers` (~43 tokens)

List every published AB[500] artist dossier (name, slug, subtitle, editions, tier, updated date). Start here to discover which artists have a biography available.

### `search_artists` (~64 tokens)

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.

Input parameters:

- `query` (string, required): Name or keyword, e.g. 'Fidenza' or 'tyler'

### `get_dossier` (~78 tokens)

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.

Input parameters:

- `slug` (string, required): Artist slug from list_dossiers/search_artists, e.g. 'tyler-hobbs'

### `get_otdh_methodology` (~45 tokens)

Get the definition, formulas, full-universe coverage, limitations, discussion URL, and snapshot metadata for AB5D's artist-level Oeuvre Total Days Held metric.

### `list_artist_otdh` (~55 tokens)

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.

Input parameters:

- `limit` (integer)

### `get_artist_otdh` (~63 tokens)

Get one artist's oTDH rank, score, collector breadth, raw collector-days, project count, and snapshot metadata by AB5D artist slug.

Input parameters:

- `slug` (string, required): AB5D artist slug, e.g. 'tyler-hobbs'

### `list_artist_collector_tdh` (~40 tokens)

List all 308 artist-specific collector TDH dashboard records, including each metric label, route, data URL and verified or pending source status.

### `get_artist_collector_tdh` (~81 tokens)

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.

Input parameters:

- `limit` (integer)
- `offset` (integer)
- `slug` (string, required): AB5D artist slug, e.g. 'casey-reas'

### `list_open_bounties` (~48 tokens)

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.

### `get_bounty` (~66 tokens)

Get one AB5D bounty task by identifier, including its current status and operational routes. Do not begin work unless the returned status is open.

Input parameters:

- `task_id` (string, required): Task identifier from list_open_bounties, e.g. 'MA-CAL-CT-01'

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/maxand98-ab500-research/ab5d#diagnostics

## Score history

- 2026-09-21: 84
- 2026-09-20: 84
- 2026-09-19: 84
- 2026-09-18: 83
- 2026-09-17: 83
- 2026-09-16: 83
- 2026-09-15: 82
- 2026-09-14: 82
- 2026-09-13: 81
- 2026-09-12: 81
- 2026-09-11: 80
- 2026-09-10: 80
- 2026-09-09: 79
- 2026-09-08: 79
- 2026-09-07: 78
- 2026-09-06: 78
- 2026-09-05: 77
- 2026-09-04: 77
- 2026-09-03: 76
- 2026-09-02: 76
- 2026-09-01: 76
- 2026-08-31: 75
- 2026-08-30: 75
- 2026-08-29: 74
- 2026-08-28: 74
- 2026-08-27: 74
- 2026-08-26: 74
- 2026-08-25: 72
- 2026-08-24: 72
- 2026-08-23: 71

## Common questions

### 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.

## Links

- Remote endpoint: https://ab5d.xyz/mcp
- Repository: https://github.com/maxand98/ab500
- Changelog RSS feed: https://verifymcp.io/servers/maxand98-ab500-research/ab5d.xml
- Changelog JSON feed: https://verifymcp.io/servers/maxand98-ab500-research/ab5d.json
- HTML version of this page: https://verifymcp.io/servers/maxand98-ab500-research/ab5d