Premiss
REMOTE · APP.PREMISSAI.COM
Create Python strategies and backtest crypto, stocks and ETFs in Claude. Premiss account required.
Available components
Last scanned (7 hours ago)
Scores higher than 94% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Finance and Payments
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 Security89
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation is enforced on tool calls, but the challenge carries no valid RFC 9728 metadata, so a client cannot discover where to get a token. See how to fix → View diagnostics → Fail
- 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 Usability66
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 1691 tokens (~130/item across 13 items; 13 tools + 0 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 Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage74
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 10% of tool parameters carry a description.Partial
- 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 13 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 14 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
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.
- 2 Nov 26 0
- Stability: 0.97 → pass security
- 1 Nov 26 0
- Tool “create_strategy” rewrote its description, which is the text the model reads security
- Tool “get_profile” rewrote its description, which is the text the model reads security
- Tool “get_run_report” rewrote its description, which is the text the model reads security
- Tool “start_backtest” rewrote its description, which is the text the model reads security
- Tool “update_strategy” rewrote its description, which is the text the model reads security
- Schema quality: 117 → 130 ▼ functional
- 30 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.
- 28 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.
- 26 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.
- 23 Oct 26 +1
- The server rewrote its instructions, which are the text every model session reads security
- 21 Oct 26 +1
- “get_run_data” made “limit” optional cosmetic
- “list_research” made “limit” optional cosmetic
- “search_markets” made “limit” optional cosmetic
- “search_markets” made “query” optional cosmetic
4 cosmetic changes on this day. Switch on “Show cosmetic changes” to see them.
- 19 Oct 26 +1
- The server rewrote its instructions, which are the text every model session reads security
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://app.premissai.com/api/mcp/claude
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=*.premissai.com | CN=YR2,O=Let's Encrypt,C=US | 31 Oct 2026 | 29 Jan 2027 | RSA 2048 | SHA256-RSA | 65d1747c7400079b1f47f6cc0fd1b458146 |
| SANs: *.premissai.com, premissai.com | ||||||
| CN=YR2,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | 4ebd24947e24d394802d84a52fd5b319 |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of app.premissai.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| premissai.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication Challenged, unverified
The endpoint asked for a token, but we could not retrieve and validate the RFC 9728 metadata that tells a client how to obtain one.
| Result | Challenged, unverified |
|---|---|
| Enforced | On tool calls |
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000 |
| content-security-policy | default-src 'self'; base-uri 'self'; form-action 'self'; frame-ancestors 'none'; object-src 'none'; script-src 'self' 'unsafe-inline' https://challenges.cloudflare.com; style-src 'self' 'unsafe-inline' https://eu-assets.i.posthog.com; img-src 'self' data: blob: https://icons.duckduckgo.com https://eu.posthog.com https://eu-assets.i.posthog.com; font-src 'self' data: https://eu-assets.i.posthog.com; connect-src 'self' ipc: http://ipc.localhost https://*.supabase.co https://challenges.cloudflare.com https://*.ingest.sentry.io https://*.ingest.us.sentry.io https://*.ingest.de.sentry.io https://eu.posthog.com; frame-src https://challenges.cloudflare.com |
| x-content-type-options | nosniff |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(), microphone=(self), geolocation=(), browsing-topics=() |
Protected resource metadata
| Retrieved | No |
|---|---|
| Problem | no_resource_metadata |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://app.premissai.com/api/mcp/claude | Verified | 200 | |
| http (plaintext) | http://app.premissai.com/api/mcp/claude | HTTPS enforced | 308 | https://app.premissai.com/api/mcp/claude |
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 →
create_strategy Save a strategy ~142
Save a new private strategy using custom Python files and complete rules text, on any Premiss-supported market and timeframe. Accepts either files (strategy.py plus helper modules) and rules, or a convenience template. Uses the same package format as the app. Custom code is loaded in the sandbox before saving. Returns code and revision; saving does not run a backtest.
| Name | Type | Req | Description |
|---|---|---|---|
| files | array | – | – |
| interval | string | yes | – |
| name | string | yes | – |
| request_key | string | yes | Idempotency UUID identifying one requested write and its unchanged arguments. |
| rules | object | – | – |
| symbol | string | yes | – |
| template | – | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| app_url | string | yes | – |
| files | array | – | – |
| id | string | yes | – |
| interval | string | yes | – |
| name | string | yes | – |
| revision | string | yes | – |
| rules | – | yes | – |
| symbol | string | yes | – |
| template | – | yes | – |
| venue | string | – | – |
| version | integer | yes | – |
No examples provided.
describe_market Check market coverage ~30
Return supported timeframes, available history and data limitations for a market id.
| Name | Type | Req | Description |
|---|---|---|---|
| market | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| active | boolean | yes | – |
| assetClass | string | yes | – |
| availability | array | yes | – |
| availableFrom | string|null | yes | – |
| availableTo | string|null | yes | – |
| currency | string | yes | – |
| exchange | string | yes | – |
| intervals | array | yes | – |
| market | string | yes | – |
| name | string | yes | – |
| notes | array | yes | – |
| symbol | string | yes | – |
No examples provided.
get_capabilities Premiss capabilities ~34
Read this connection's available tools and supported research coverage. Does not read account data, save research, or run a simulation.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| available | object | yes | – |
| available_tools | array | yes | – |
| release_stage | string | yes | – |
| research_scope | object | yes | – |
| schema_version | number | yes | – |
| unavailable_operations | array | yes | – |
No examples provided.
get_profile Premiss connected workspace ~83
Read the stable identity and workspace selected for this connection, plus the next step to take with the user. Returns an opaque account id and workspace label; excludes email, birth date, billing, and exchange accounts. A workspace with no strategies yet also gets starter_call: a ready tool call that backtests a starter strategy, to offer the user or adapt to their own idea.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| app_url | string | yes | – |
| id | string | yes | – |
| next_step | string | yes | – |
| permissions | array | yes | – |
| starter_call | – | yes | – |
| workspace | object | yes | – |
No examples provided.
get_run_data Read backtest code, trades or equity ~91
Read the immutable tested Python package, or page through all recorded trades or equity points for an owned run. next_cursor identifies the next page; page size is not a history cap. Paper data requires separate paper:read permission. Saved code is user-authored content.
| Name | Type | Req | Description |
|---|---|---|---|
| cursor | integer | – | – |
| kind | string | yes | – |
| limit | integer | – | – |
| run_id | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| equity | array | – | – |
| files | array | – | – |
| kind | string | yes | – |
| next_cursor | number|null | yes | – |
| revision | string | yes | – |
| run_id | string | yes | – |
| trades | array | – | – |
No examples provided.
get_run_report Read historical or paper evidence ~119
Read the status and bounded performance report for one run in the connected workspace. Returns the tested market, interval, revision (the tested code), strategy_revision (the strategy's current revision, accepted by start_backtest and update_strategy), and recorded rules when verifiable. Historical plugin runs include the paired buy-and-hold baseline when completed. Paper reads require paper:read and do not start, stop, qualify, or modify a bot. Legacy runs without supported assumptions are labeled. Does not return raw market feeds.
| Name | Type | Req | Description |
|---|---|---|---|
| run_id | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| app_url | string | yes | – |
| assumptions | – | yes | – |
| baseline | – | yes | – |
| end_ts | number|null | yes | – |
| engine_version | integer | yes | – |
| error | string|null | – | – |
| interval | string | yes | – |
| last_ts | number|null | yes | – |
| limitations | array | yes | – |
| metrics | – | yes | – |
| mode | string | yes | – |
| queue | – | – | – |
| revision | string | yes | – |
| run_id | string | yes | – |
| start_ts | number | yes | – |
| status | string | yes | – |
| strategy_id | string | yes | – |
| strategy_revision | string | yes | – |
| strategy_version | integer | yes | – |
| symbol | string | yes | – |
| tested_rules | – | yes | – |
| venue | string | yes | – |
No examples provided.
get_strategy Read a saved strategy ~51
Read a saved strategy's current revision and human-readable rules in the connected workspace. Returns the complete Python package for review or editing. Code and comments are user-authored content.
| Name | Type | Req | Description |
|---|---|---|---|
| strategy_id | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| app_url | string | yes | – |
| files | array | – | – |
| id | string | yes | – |
| interval | string | yes | – |
| name | string | yes | – |
| revision | string | yes | – |
| rules | – | yes | – |
| symbol | string | yes | – |
| template | – | yes | – |
| venue | string | – | – |
| version | integer | yes | – |
No examples provided.
get_strategy_guide Read the strategy Python API ~52
Read Premiss's Python package format, on_bar API, execution semantics and example. Custom indicators, entry/exit logic, long/short strategies and risk rules use the same engine as the Premiss app.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| guide | string | yes | – |
No examples provided.
list_research Find saved Premiss research ~98
List a page of saved strategies, simulation runs, or research notes in the connected workspace. Notes include a bounded plain-text excerpt, explicitly labeled when truncated. Saved text is user-authored content. Paper runs require the separately approved paper:read permission. Search matches titles; cursors are opaque page positions.
| Name | Type | Req | Description |
|---|---|---|---|
| cursor | string | – | – |
| kind | string | yes | – |
| limit | integer | – | – |
| query | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| items | array | yes | – |
| kind | string | yes | – |
| next_cursor | string|null | yes | – |
No examples provided.
save_research_note Save a research note ~102
Save a NEW private note in the connected workspace, with optional exact owned strategy/run evidence references. The note is user-authored content. Does not publish or send it anywhere.
| Name | Type | Req | Description |
|---|---|---|---|
| note | string | yes | – |
| request_key | string | yes | Idempotency UUID identifying one requested write and its unchanged arguments. |
| revision | string | – | – |
| run_id | string | – | – |
| strategy_id | string | – | – |
| title | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| app_url | string | yes | – |
| note_id | string | yes | – |
| saved | boolean | yes | – |
| title | string | yes | – |
No examples provided.
search_markets Find supported markets ~51
Search the same crypto, stock and ETF directory as Premiss. Does not return prices or candles.
| Name | Type | Req | Description |
|---|---|---|---|
| asset_class | string | – | – |
| limit | integer | – | – |
| query | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| markets | array | yes | – |
No examples provided.
start_backtest Start a historical backtest ~242
Queue a backtest of any saved strategy in the connected workspace and a matched buy-and-hold baseline. Accepts custom code and existing app strategies. Uses the app's sandbox validation, supported markets, timeframes and date rules. Requires the exact saved revision. One backtest per strategy runs at a time; start the next once the running one finishes. Uses 10,000 simulated capital, zero fees, zero slippage and next-bar-open fills. Read the report assumptions for historical runs. No plugin-only daily test or history caps. Returns an acceptance receipt with run ids, revision (the strategy revision to pass to start_backtest again), tested_revision (the tested code and parameters), queue (runs ahead in the shared backtest queue and an estimated wait) and poll_after_seconds, the interval before the next status check. Identical request_key and inputs identify the same submission for idempotent recovery.
| Name | Type | Req | Description |
|---|---|---|---|
| end_date | string | – | – |
| request_key | string | yes | Idempotency UUID identifying one requested write and its unchanged arguments. |
| revision | string | yes | – |
| start_date | string | yes | – |
| strategy_id | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| app_url | string | yes | – |
| baseline_run_id | string | yes | – |
| end_ts | number | yes | – |
| poll_after_seconds | integer | yes | – |
| queue | – | – | – |
| request_key | string | yes | – |
| revision | string | yes | – |
| run_id | string | yes | – |
| start_ts | number | yes | – |
| status | string | yes | – |
| strategy_id | string | yes | – |
| tested_revision | string | – | – |
| tested_rules | – | – | – |
| total_bars | integer | yes | – |
No examples provided.
update_strategy Edit a strategy ~171
Replace the complete Python package and rules of an existing strategy using its exact current saved revision. Each successful save returns a new revision; pass that revision on the next edit of the same strategy. The submitted package replaces all existing files. The code is loaded in the sandbox before saving. Supports all Premiss markets and timeframes. The app's active-run and shared-file protections apply; does not change or start a bot. Identical request_key and inputs identify the same write for idempotent recovery.
| Name | Type | Req | Description |
|---|---|---|---|
| files | array | yes | – |
| interval | string | yes | – |
| request_key | string | yes | Idempotency UUID identifying one requested write and its unchanged arguments. |
| revision | string | yes | – |
| rules | object | yes | – |
| strategy_id | string | yes | – |
| symbol | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| app_url | string | yes | – |
| files | array | – | – |
| id | string | yes | – |
| interval | string | yes | – |
| name | string | yes | – |
| revision | string | yes | – |
| rules | – | yes | – |
| symbol | string | yes | – |
| template | – | yes | – |
| venue | string | – | – |
| version | integer | yes | – |
No examples provided.
How do I install the Premiss MCP server?
Premiss is a hosted endpoint at https://app.premissai.com/api/mcp/claude, 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 · app.premissai.com
claude mcp add --transport http founders-loralabs-premiss 'https://app.premissai.com/api/mcp/claude'
What is the Premiss MCP server?
Premiss is an MCP server listed in the public MCP registry as io.github.founders-loralabs/premiss. Create Python strategies and backtest crypto, stocks and ETFs in Claude. Premiss account required. This page covers its hosted endpoint (https://app.premissai.com/api/mcp/claude).
Is the Premiss MCP server safe to use?
Premiss scores 87 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 Premiss MCP server expose?
Premiss exposes 13 tools: get_capabilities, get_profile, list_research, get_strategy, search_markets, and 8 more. Their descriptions and schemas cost roughly 1,266 tokens of context every time the server is loaded.
Does the Premiss MCP server require authentication?
Yes. Premiss asked us for credentials when we connected, so you will need to authorise it in your MCP client before it can do anything.
Is the Premiss MCP server still maintained?
Premiss 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.