RegTail
mcp remote · streamable-http · v1.1.0 · source: crawl
https://regtail.com/mcp
UK used-car checks by plate or photo: free MOT status, no key needed; optional detailed MOT reports
Works
100
Verified Oct 31, 2026 · p50 405 ms · p95 416 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server 'RegTail' |
| tools_listed | 15 | pass | 10 tools |
| schema_complete | 15 | pass | 9 of 10 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 405 ms |
| latency_p95 | 5 | pass | p95 416 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (10)
| Name | Description | Schema |
|---|---|---|
my_reports | 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. | typed |
credits_balance | 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. | typed |
decode_plate | 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 f | typed |
free_check | 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, | typed |
resolve_vehicle | 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 fre | incomplete |
compare_vehicles | 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 l | typed |
sample_report | 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 repo | typed |
full_report | 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 sectio | typed |
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 | typed |
viewing_advice | 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 li | typed |
Badge
Paste into your README. It updates on every verification.
[](https://app.agent-xm.com/a/com-regtail-regtail)
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