Tera Studio
REMOTE · TERASTUDIO.CO
Find a song's key and tempo, shift it to suit your voice, then hear songs sung in your own voice.
Available components
Last scanned (6 hours ago)
Scores higher than 64% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Entertainment and Games
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 Security80
- 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
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- 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 Usability82
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 843 tokens (~168/item across 5 items; 4 tools + 1 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
- Stability check failed: schema churn in the 8 days we've observed: 1 tool removals, 0 breaking changes, 0 auth/transport breaks, 2 additions. See how to fix → Fail
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
- Supports UI / widget rendering.Pass
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.
- 5 Nov 26 +3
- HSTS header: fail → pass ▲ security
- 2 Nov 26 −2
- Stability: 0.13 → fail ▼ security
- A breaking change shipped without a version bump: still 1.0.0 ▼ security
- Tool “start_song_in_my_voice” was removed ▼ security
- Resource “song-key-tool” now points somewhere else: ui://tera-studio/song-key-v1.html → ui://tera-studio/song-key-v1.1.2.html security
- The server rewrote its instructions, which are the text every model session reads security
- New tool “get_own_voice_song_instructions” functional
- 31 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
- 29 Oct 26 0
- The server rewrote its instructions, which are the text every model session reads security
- Tool “find_song_key_and_tempo” rewrote its description, which is the text the model reads security
- Schema quality: 144 → 167 ▼ functional
- Stability: unverified → 0.03 ▲ functional
- New tool “find_song_key” functional
- 28 Oct 26 73
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 5 Nov 2026 · Probed https://terastudio.co/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=terastudio.co | CN=Amazon RSA 2048 S18,O=Amazon,C=US | 3 Nov 2026 | 20 May 2027 | RSA 2048 | SHA256-RSA | 40a6bb555fd40502626f611522f0d8c3 |
| SANs: terastudio.co, terachat.co, www.terastudio.co, www.teraads.co, www.terachat.co, www.teralabs.sh, teralabs.sh, teraads.co | ||||||
| CN=Amazon RSA 2048 S18,O=Amazon,C=US (CA) | CN=Amazon Root CA 1,O=Amazon,C=US | 8 Jul 2026 | 7 Jul 2029 | RSA 2048 | SHA256-RSA | 46cb6d1a8a89259ad54f0257a3a0932fcf03e4d |
| CN=Amazon Root CA 1,O=Amazon,C=US (CA) | CN=Starfield Services Root Certificate Authority - G2,O=Starfield Technologies\, Inc.,L=Scottsdale,ST=Arizona,C=US | 25 May 2015 | 31 Dec 2037 | RSA 2048 | SHA256-RSA | 67f944a2a27cdf3fac2ae2b01f908eeb9c4c6 |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of terastudio.co. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| co. | present | 7786 | 8 | Verified |
| terastudio.co. | 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 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000 |
| content-security-policy | frame-ancestors 'self' |
| x-content-type-options | nosniff |
| x-frame-options | SAMEORIGIN |
| referrer-policy | strict-origin-when-cross-origin |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://terastudio.co/mcp | Verified | 200 | |
| http (plaintext) | http://terastudio.co/mcp | HTTPS enforced | 301 | https://terastudio.co/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 →
find_song_key Look up a song’s key by title ~228
Look up the key, tempo (BPM) and typical vocal range of a well-known song by its title, in Tera Studio's song list (key and tempo from AcousticBrainz's analyses of the recording). Returns the key with its relative key, how many analyses agree on it, the BPM when they agree, an estimated range, and links to the song's page and to the key changer. Use it when someone names a song and asks its key or tempo, or whether it suits their voice. Pass semitones if they want it higher or lower. A song outside the list comes back as not found, with the key finder and key changer for a file they have.
| Name | Type | Req | Description |
|---|---|---|---|
| artist | string | – | Who sings it, if the person said; it picks between songs that share a title. |
| semitones | integer | – | How far to move the song for their voice, from -6 to 6 semitones; negative is lower. Leave it out to keep the original key. |
| title | string | yes | The song's title, without the artist. |
| Name | Type | Req | Description |
|---|---|---|---|
| found | boolean | yes | – |
| key_changer | string | yes | – |
| key_finder | string | – | – |
| other_matches | array | yes | – |
| shifted | – | yes | – |
| song | – | yes | – |
| song_page | – | yes | – |
No examples provided.
find_song_key_and_tempo Find a song’s key and tempo ~113
Find the musical key (major or minor, with its relative key) and the tempo in BPM of a song file the person has. Opens a small Tera Studio tool where they choose the file; it is analysed in their browser and never uploaded. Use it when someone asks what key or BPM a song is in, or wants to know before singing, mixing or practising it. It reads only the file and doesn't identify or play songs; find_song_key looks up a well-known song by its title.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| audio | string | yes | – |
| semitones | – | – | – |
| start_song | string | yes | – |
| view | string | yes | – |
| web_tool | string | yes | – |
No examples provided.
get_own_voice_song_instructions Get own-voice song instructions ~194
Explain how to hear a song sung in the person's own voice with Tera Studio, and give them the link to start. They create an account on terastudio.co, sing for about a minute, add a song they have the rights to use, and hear it back in their voice. Use it when someone wants to hear themselves sing a song, make a cover in their own voice, or turn a song into a gift in their voice. It returns steps and a link and creates nothing. Tera Studio only uses the person's own voice: not for celebrity or other people's voices.
| Name | Type | Req | Description |
|---|---|---|---|
| language | string | – | The language the song is sung in, if they said. |
| occasion | string | – | What it's for, if they said: a birthday, a wedding, a gift. |
| song_title | string | – | The song they want to hear in their voice, if they named one. |
| Name | Type | Req | Description |
|---|---|---|---|
| consent | string | yes | – |
| start_song | string | yes | – |
| steps | array | yes | – |
No examples provided.
shift_song_key Change a song’s key ~139
Move a song the person has up or down by up to 6 semitones, keeping its speed, so it fits their voice, and play it back. Opens a small Tera Studio tool where they choose the file; the change happens in their browser and nothing is uploaded. Use it when a song is too high or too low for someone. Pass semitones if they said how far (negative is lower); otherwise they choose in the tool.
| Name | Type | Req | Description |
|---|---|---|---|
| semitones | integer | – | How far to move the song, from -6 to 6 semitones; negative is lower. Leave it out to let the person choose. |
| Name | Type | Req | Description |
|---|---|---|---|
| audio | string | yes | – |
| semitones | – | – | – |
| start_song | string | yes | – |
| view | string | yes | – |
| web_tool | string | yes | – |
No examples provided.
How do I install the Tera Studio MCP server?
Tera Studio is a hosted endpoint at https://terastudio.co/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 · terastudio.co
claude mcp add --transport http co-terastudio-tera-studio 'https://terastudio.co/mcp'
What is the Tera Studio MCP server?
Tera Studio is an MCP server listed in the public MCP registry as co.terastudio/tera-studio. Find a song's key and tempo, shift it to suit your voice, then hear songs sung in your own voice. This page covers its hosted endpoint (https://terastudio.co/mcp).
Is the Tera Studio MCP server safe to use?
Tera Studio scores 75 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 Tera Studio MCP server expose?
Tera Studio exposes 4 tools: find_song_key_and_tempo, shift_song_key, get_own_voice_song_instructions, find_song_key. Their descriptions and schemas cost roughly 674 tokens of context every time the server is loaded.
Does the Tera Studio MCP server require authentication?
No. We connected to Tera Studio without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Tera Studio MCP server still maintained?
Tera Studio is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.