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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "regtail": {
      "type": "http",
      "url": "https://regtail.com/mcp",
      "headers": {
        "Authorization": "Bearer ${REGTAIL_TOKEN}"
      }
    }
  }
}

claude mcp add --transport http regtail https://regtail.com/mcp --header "Authorization: Bearer ${REGTAIL_TOKEN}"

[mcp_servers.regtail]
url = "https://regtail.com/mcp"
bearer_token_env_var = "REGTAIL_TOKEN"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "regtail": {
      "type": "remote",
      "url": "https://regtail.com/mcp",
      "enabled": true,
      "headers": {
        "Authorization": "Bearer {env:REGTAIL_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "regtail": {
      "type": "http",
      "url": "https://regtail.com/mcp",
      "headers": {
        "Authorization": "Bearer ${REGTAIL_TOKEN}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=regtail&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vcmVndGFpbC5jb20vbWNwIiwiaGVhZGVycyI6eyJBdXRob3JpemF0aW9uIjoiQmVhcmVyICR7UkVHVEFJTF9UT0tFTn0ifX0%3D"
}

{
  "servers": {
    "regtail": {
      "type": "http",
      "url": "https://regtail.com/mcp",
      "headers": {
        "Authorization": "Bearer ${REGTAIL_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "regtail": {
      "httpUrl": "https://regtail.com/mcp",
      "headers": {
        "Authorization": "Bearer ${REGTAIL_TOKEN}"
      }
    }
  }
}

extensions:
  "regtail":
    enabled: true
    name: "regtail"
    type: streamable_http
    uri: "https://regtail.com/mcp"
    headers:
      "Authorization": "Bearer ${REGTAIL_TOKEN}"
    timeout: 300

Placeholders to fill from your own secret store: ${REGTAIL_TOKEN}. The registry never accepts secret values.

Quality 79 / 100good

protocol88 · weight 25

pass
protocol.modernsupports 2026-07-28 (server/discover)
pass
protocol.statelessanswers without a session
pass
protocol.transportstreamable HTTP
warn
protocol.list_ttltools/list declares ttlMs 0, so clients re-fetch it on every use

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene100 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
pass
tools.annotations10 of 10 tools declare readOnlyHint or destructiveHint
pass
tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
pass
tools.token_costabout 1,896 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability25 · weight 15

warn
stability.changes13 tool changes in 30 days
fail
stability.rug_pull1 tools kept their name but changed most of their description in 30 days; review before trusting them

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

10 tools, about 1,896 tokens to load them all · tool set fc4944b76451 · tools last changed 2026-10-15 · checked 2026-10-20 10:35 UTC

Tool changes

2026-10-15free_checkchangeddescription
before
The site's free check: identity, tax and MOT status, latest MOT test, its defects and recorded mileage, the existing since-previous-test summary and mileage-unverified flag. Includes presentation, up to three questions from these free facts, a verdict image, locked teasers and a report link. No account or credit needed. Next-MOT estimates, repair prices, mileage analysis and older MOT details require the detailed report.
after · 88% of words in common
The site's free check: identity, tax and MOT status, latest MOT test, its defects and recorded mileage, the existing since-previous-test summary and mileage-unverified flag. Includes presentation, up to three questions from these free facts, a verdict image, locked teasers and a report link. No account or credit needed. Show the returned markdown field as-is to the user. Next-MOT estimates, repair prices, mileage analysis and older MOT details require the detailed report.
2026-10-15my_reportschangedinput schema
2026-10-15credits_balancechangedinput schema
2026-10-15viewing_advicechangedinput schema
2026-10-15unlock_reportchangedtitle, description, input schema, annotations
before
Spends one of the user's RegTail credits to unlock the full report for this plate for 30 days, then returns the full report (as full_report does). Ask the user first, every time, and call this only after they agree; never unlock on your own initiative or to answer a general question. A plate already unlocked costs nothing again. Needs the user's RegTail account linked. With no credits left it unlocks nothing and spends nothing.
after · 98% of words in common
Spends one of the user's RegTail credits to unlock the detailed report for this plate for 30 days, then returns the detailed report (as full_report does). Ask the user first, every time, and call this only after they agree; never unlock on your own initiative or to answer a general question. A plate already unlocked costs nothing again. Needs the user's RegTail account linked. With no credits left it unlocks nothing and spends nothing.
2026-10-15full_reportchangedtitle, description, input schema, annotations
before
The full report of a car the user has unlocked on their RegTail account: verdict and top risks, every MOT test with defects and advisories, mileage analysis, recurring advisories, other sections, the viewing checklist, what was not checked, and guidance for explaining it. Use to discuss a car in depth. Needs the user's RegTail account linked. Never spends: for a plate that is not unlocked it returns unlocked=false and a message; then ask the user before calling unlock_report.
after · 97% of words in common
The detailed report of a car the user has unlocked on their RegTail account: verdict and top risks, every MOT test with defects and advisories, mileage analysis, recurring advisories, other sections, the viewing checklist, what was not checked, and guidance for explaining it. Use to discuss a car in depth. Needs the user's RegTail account linked. Never spends: for a plate that is not unlocked it returns unlocked=false and a message; then ask the user before calling unlock_report.
2026-10-15sample_reportchangedtitle, description, input schema, annotations
before
The full report and viewing advice for one public sample car (CX52HHM, a 2002 Land Rover Defender), to show what a full report contains. Use when the user asks what RegTail's full report looks like. No account needed. It is always the same sample car, never the user's car.
after · 95% of words in common
The detailed report and viewing advice for one public sample car (CX52HHM, a 2002 Land Rover Defender), to show what a detailed report contains. Use when the user asks what RegTail's detailed report looks like. No account needed. It is always the same sample car, never the user's car.
2026-10-15compare_vehiclesadded
Compare the site's free projections for exactly two plates: identity, status and latest MOT test. Duplicate plates use one lookup. Includes questions from free facts, comparison image and report links. No prediction-based ranking; next-MOT estimates and likely repairs stay in the detailed report. No account or credit needed.
2026-10-15resolve_vehicleadded
Resolve a typed plate, car photo data URL or supported advert URL to a plate only. No account or spend. If uncertain, ask the user to confirm; if unavailable, ask for the typed plate. Then use free_check.
2026-10-15free_checkchangeddescription, input schemameaning changed
before
The free check of a UK car by its registration plate: make, model, engine and fuel, tax and MOT status with their dates, and the latest MOT test with its result, mileage and any defects or advisories. Use when the user gives a plate or asks about a car. Have an advert? Read its number plate from its photos and send that; advert links are not accepted. No account needed and nothing is spent. Returns: car, tax, mot, latest_mot_test, since_previous_test, unlocked (whether the user's linked account can already see the full report), full_report_covers (what the full report adds) and guidance.
after · 22% of words in common
The site's free check: identity, tax and MOT status, latest MOT test, its defects and recorded mileage, the existing since-previous-test summary and mileage-unverified flag. Includes presentation, up to three questions from these free facts, a verdict image, locked teasers and a report link. No account or credit needed. Next-MOT estimates, repair prices, mileage analysis and older MOT details require the detailed report.

Showing the latest 10. Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 83 / 100

no-repository

provenance55

liveness100

freshness100

hygiene80

+dns-namespace +website +reachable +uptime-100% +updated-16d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://regtail.com/mcp` streamable-http	api_key `${REGTAIL_TOKEN}`	yes	100%	276 ms	2026-07-28	2026-10-20

Tools (10)

`compare_vehicles`read-only	Compare the site's free projections for exactly two plates: identity, status and latest MOT test. Duplicate plates use one lookup. Includes questions from free facts, comparison image and report links. No prediction-based ranking; next-MOT estimates and likely repairs stay in the detailed report. No account or credit needed.
`credits_balance`read-only	How many credits the user's RegTail account holds, and pricing_url, a page explaining how credits work. Needs the user's RegTail account linked.
`decode_plate`read-only	When a UK plate of this format could have been issued, from the plate alone (format, age identifier, and the window as first and last month). Offline: it does not look the car up; use free_check for that. No account needed.
`free_check`read-only	The site's free check: identity, tax and MOT status, latest MOT test, its defects and recorded mileage, the existing since-previous-test summary and mileage-unverified flag. Includes presentation, up to three questions from these free facts, a verdict image, locked teasers and a report link. No account or credit needed. Show the returned markdown field as-is to the user. Next-MOT estimates, repair prices, mileage analysis and older MOT details require the detailed report.
`full_report`read-only	The detailed report of a car the user has unlocked on their RegTail account: verdict and top risks, every MOT test with defects and advisories, mileage analysis, recurring advisories, other sections, the viewing checklist, what was not checked, and guidance for explaining it. Use to discuss a car in depth. Needs the user's RegTail account linked. Never spends: for a plate that is not unlocked it returns unlocked=false and a message; then ask the user before calling unlock_report.
`my_reports`read-only	The cars the user has unlocked (with when each unlock ends) and their recent checks, so a conversation can pick up a car checked earlier. Needs the user's RegTail account linked.
`resolve_vehicle`read-only	Resolve a typed plate, car photo data URL or supported advert URL to a plate only. No account or spend. If uncertain, ask the user to confirm; if unavailable, ask for the typed plate. Then use free_check.
`sample_report`read-only	The detailed report and viewing advice for one public sample car (CX52HHM, a 2002 Land Rover Defender), to show what a detailed report contains. Use when the user asks what RegTail's detailed report looks like. No account needed. It is always the same sample car, never the user's car.
`unlock_report`	Spends one of the user's RegTail credits to unlock the detailed report for this plate for 30 days, then returns the detailed report (as full_report does). Ask the user first, every time, and call this only after they agree; never unlock on your own initiative or to answer a general question. A plate already unlocked costs nothing again. Needs the user's RegTail account linked. With no credits left it unlocks nothing and spends nothing.
`viewing_advice`read-only	Advice for viewing an unlocked car in person: a summary, priorities to check (each with why and the report records behind it) and known weak spots of the model. Needs the user's RegTail account linked and the plate unlocked; never spends.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "com.regtail/regtail",
  "icons": [
    {
      "src": "https://regtail.com/icons/icon-512.png",
      "sizes": [
        "512x512"
      ],
      "mimeType": "image/png"
    }
  ],
  "title": "RegTail",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://regtail.com/mcp",
      "type": "streamable-http",
      "headers": [
        {
          "name": "Authorization",
          "isSecret": true,
          "isRequired": true,
          "description": "Bearer followed by your RegTail API key (rt_...). The public key rt_test_sample returns one sample car for free. Get a key at https://regtail.com/?account=keys"
        }
      ]
    }
  ],
  "version": "1.0.0",
  "websiteUrl": "https://regtail.com/docs/agents",
  "description": "UK used-car checks: MOT history, mileage and an advert's claims tested against the records"
}