VHGENGINE is an MCP server with 45 tools an agent can call, among them add_credits, cancel_job, create_checkout. It answers at https://engine-production-3bdc.up.railway.app/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 10 of 10 times since 4 September 2026; the last check, on 17 October 2026, succeeded.
Agents-first viral-hook engine: generate, score, and remix short-form hooks over MCP.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
add_credits | Compatibility credit grant (1-10000); beta customer operations are already free. When VHGENGINE_ADMIN_KEY is configured on the deployment this requires a matching admin_key argument; otherwise it stays self-serve (unless VHGENGINE_FREE_CRED Inputs: amount, api_key, idempotency_key, admin_key |
cancel_job | Cancel a job that is STILL QUEUED. Free, repeatable, never refunds. ALWAYS branch on `cancelled`; reason + next_action say what to do. A queued job was never charged (the worker charges), so credits_refunded is always 0. A RUNNING job canno Inputs: job_id, api_key |
create_checkout | Get a hosted-checkout link outside beta. Disabled while beta pricing is free. The REQUIRED idempotency_key creates or replays one durable order and Stripe is called under an order-derived key, so a retry never mints a second order or sessio Inputs: pack, idempotency_key, success_url, cancel_url, api_key |
create_creator_profile | Create an owned, versioned creator profile. Free; admin scope. At least one creator/audience/stance/fact is required. Returns the exact version, deny-by-default secondary-use decisions, receipts, and an unverified-attestation warning. Optio Inputs: display_name, subject_relationship, authority_attested, creator, audience, stance |
create_key | Mint a new named API key; the plaintext is returned ONCE. Requires admin scope. Delegate safely (WP-SCOPE): optional scopes (subset of read|spend|admin; omit for full power) + daily_credit_cap (credits/day; omit for uncapped) hand a sub-age Inputs: name, scopes, daily_credit_cap, api_key |
delete_account | Permanently delete this account. TERMINAL, not reversible. Admin scope (WP-LIFE). Pass confirm="delete" (guards accidents). Revokes ALL keys and deletes live profile facts/consent, hooks, webhooks, deliveries, jobs and idempotency; KEEPS bo Inputs: confirm, api_key |
delete_creator_profile | Erase profile facts and consent history; retain a retraction marker. Admin scope. Already committed customer hook outputs are not silently deleted. No profile data is used for secondary learning or cross-customer retrieval today. One-way re Inputs: profile_id, expected_version, confirm, idempotency_key, api_key |
delete_webhook | Remove this account's webhook (WP-M). Admin scope. Args: api_key (admin scope). Cost=free. Returns {deleted: true}. Errors: unauthorized, forbidden, not_found (none registered), rate_limited. Inputs: api_key |
export_usage | Export ledger, hook, instance, lineage, outcome, profile, and retained-job data. Free; run BEFORE delete_account. Same JSON body as GET /v1/usage/export; CSV has events. UNBOUNDED: prefer paged reads on big accounts. Email is masked without Inputs: tag, key_prefix, api_key |
generate_hooks | Archived source-free writer. Use research_hook_evidence instead. Always fails before model, template, provider, storage, or billing work. Research requires a real public source video with at least 50,000 observed views, a canonical link, an |
generate_hooks_batch | Archived source-free batch writer. Use research_hook_evidence instead. Always fails before model, template, provider, job, storage, or billing work. It cannot pad research supply with generated or paraphrased hooks. Errors: unauthorized; in |
get_account | Return this account's state + remaining rate-limit budget. Free read. `rate_limit` carries {limit, remaining, reset_epoch, reset_at, window_seconds} for the per-account window, the same budget REST clients read from X-RateLimit-* headers. P Inputs: api_key |
get_activity | See what this account's agents are doing: in-flight ops + recent ops. Free. `in_flight` merges the live-ops registry (real stage/pct/eta mid-run) with your queued/running jobs; `recent` is the last completed charged ops. Every row has a hum Inputs: recent_limit, api_key |
get_creator_profile | Get the current or one exact historical creator-profile version. Read scope. Foreign, deleted, and unknown ids all return the same not_found envelope. Returns the same profile object as REST. Errors: unauthorized, forbidden, not_found, inva Inputs: profile_id, version, api_key |
get_estimates | The measured/expected wait per generation mode. Free, no auth. Size a call before spending. Returns {op, modes:{instant|smart|research: {p50_ms, p90_ms, samples, source ("measured" once enough samples, else "default"), advice}}}. |
get_hook | Fetch one bought hook in full, including its parsed score. Free (WP-G). Account-scoped: a foreign or unknown id is not_found (no existence leak). Args: hook_id (from a generate/batch/remix response or list_hooks), api_key. Returns {hook_id, Inputs: hook_id, api_key |
get_job | Poll an async job: status, real engine stage, progress, ETA, result/error. Poll after poll_after_seconds until status is "succeeded" (result holds the full generate body) or "failed" (error holds the typed envelope). Only the owning account Inputs: job_id, api_key |
get_usage | Return the credit balance, per-operation totals, and recent ledger. Free. Args: recent_limit (1-200, default 50), offset (>=0, pages `recent` past the newest rows), request_id (scope recent to that call's charges), tag + key_prefix (WP-J fl Inputs: recent_limit, offset, request_id, tag, key_prefix, api_key |
get_webhook | This account's webhook (url + last delivery status; never the secret). Free read. Args: api_key (read scope). Cost=free. Returns {url, created_at, last_delivery_status, last_delivery_at, events}. Errors: unauthorized, not_found (none regist Inputs: api_key |
getting_started | The 5-step agent quickstart: modes, wait guidance, links. Free, no auth. Written to be parsed and acted on. Returns {what_this_is, five_steps, modes (cost + live latency + when to use), wait_guidance (expected_wait, estimates, progressToken |
health | Deep health: DB read+write probe, worker/queue, backup + integrity. Free. Uses the same DB, backup, offsite, and integrity probes as GET /health; status is "ok" only when the DB reads and writes. Returns status/time/LLM, outcome, queue, bac |
list_archetypes | List the hook archetypes with psychology, platforms, and templates. Free, no auth. Returns {archetypes:[{id, name, description, psychological_trigger, best_for, templates}]}. Use an id for generate_hooks(archetypes=[...]) or remix_hook(targ |
list_billing_events | Recent billing events (usage.recorded, credits.granted, credits.low). Free. Newest first, paged with limit/offset like list_hooks and list_outcomes. Returns {events:[{id, event_type, payload, created_at}], limit, offset, total}. Errors: una Inputs: limit, offset, api_key |
list_creator_profiles | List current creator-profile versions, newest changed first. Free; read scope. Returns {profiles, limit, offset, total}. Each profile carries its immutable version, declarations, current secondary-use decisions, consent receipts, and unveri Inputs: limit, offset, api_key |
list_hooks | List the hooks this account has bought, newest first. Free (WP-G). Retrievable for 90 days. Args: mode (instant|smart|research|remix, or a generate alias such as template/search), since (ISO timestamp), tag (exact fleet-tag match), topic (s Inputs: mode, since, tag, topic, request_id, unreported |
list_jobs | List this account's jobs, newest first (summaries without the result blob). Args: limit (1-200, default 50), offset (>=0), api_key. Returns {jobs:[{job_id, status, stage, progress_pct, created_at, started_at, finished_at}], limit, offset, t Inputs: limit, offset, api_key |
list_keys | List this account's API keys as PREFIXES only (never the raw key). Admin scope. Returns {keys:[{prefix, name, scopes, daily_credit_cap, spent_today, created_at, revoked_at}]}, oldest first; revoked_at is null for an active key, scopes lists Inputs: api_key |
list_outcomes | List the posted outcomes THIS account has reported, newest first. Free (WP-LIFE). Retrieve submitted telemetry in bulk. Args: platform (tiktok|instagram|youtube|x|linkedin|other), since (ISO timestamp), hook_id, limit (1-200, default 50), o Inputs: platform, since, hook_id, limit, offset, api_key |
list_runs | Every call this account was charged for, newest first. Free read. Recover a lost response in two calls, never re-charged: list_runs(request_id=...) for the receipt, then follow `hooks_url` for the hooks it produced. Page with `cursor` (one Inputs: request_id, operation, charged_only, limit, offset, cursor |
list_webhook_deliveries | List this account's webhook deliveries, newest first. Free read (WP-HOOKS). Verify your receiver end-to-end (a webhook.test ping is enqueued at registration) and diagnose failures without waiting out a real event. Args: status (pending|retr Inputs: status, limit, offset, api_key |
pricing | The machine-readable price list, with per-mode expected_wait. Free, no auth. Every customer operation is zero-priced during private beta. Returns {unit, usd_per_credit:0, beta, operations, pricing_modes with zero base/per_hook, expected_wai |
quote | Read archived generation price and wait metadata without spending. Free. Validates the retained input schema and computes its historical price ceiling, balance, cap blocker, and wait metadata. It does not authorize or predict a runnable ope Inputs: topic, platform, count, archetypes, mode, api_key |
redrive_webhook_delivery | Requeue a dead-lettered webhook delivery: reset to pending, due now. Admin scope. Valid ONLY on a `dead` delivery (a live receiver that exhausted its retries); any other status is a 409 conflict and a delivery you do not own is not_found. I Inputs: delivery_id, api_key |
remix_hook | Archived source-free remix writer. Use research_hook_evidence instead. Always fails before rewriting, model, storage, or billing work. An extracted source hook cannot be replaced by generated or paraphrased copy. Errors: unauthorized; inval Inputs: text, target_archetype, count, hook_id, archetype, platform |
report_outcome | Report what a bought hook actually did once posted. FREE (WP-H). Caller-supplied, unverified, and not used by generation/scoring/retrieval today. Retained for possible future calibration; no view prediction. Args: hook_id, platform (tiktok| Inputs: hook_id, platform, posted_at, views, likes, retention_pct |
research_hook_evidence | Return a deterministic, unpadded portfolio of verified hook evidence. Hard evidence gates precede relevance and diversity; views are observed platform views. Openers are audio_verified, or transcript_grounded with explicit caveats when enab |
revoke_key | Revoke the key with `prefix` (from list_keys): it stops working, others keep working. Use to kill a leaked or old key. Args: prefix (the 12-char key prefix, e.g. vhg_sk_ab12), api_key (a DIFFERENT active key to authenticate this call). Retu Inputs: prefix, api_key |
score_hook | Score any hook text on 5 dimensions with rewrite tips. Free during beta. Deterministic heuristic scorer (no LLM). Args: text (3-300), platform, topic (optional, reproduces generate's score via the verbatim-echo penalty), tags (1-5 fleet slu Inputs: text, platform, topic, tags, verbosity, api_key |
score_hooks_batch | Score many hooks ranked with `best`, or compare named SETS. Free during beta. All-or-nothing charge. Plain: texts (1-25, each 3-300 chars). Self-test (E13): compare=true + sets (2-4 named lists, <=25 texts total) INSTEAD of texts -> per-set Inputs: texts, platform, compare, sets, topic, tags |
set_webhook | Register (or replace) this account's webhook; the secret is returned ONCE. Admin scope. Hook Detector POSTs signed job.succeeded/job.failed/credits.low (WP-M). `url` https, no creds, public host; re-registering ROTATES the secret (a repeat Inputs: url, api_key |
signup, start_generate_job, synthesize_hooks, update_creator_profile, wait_for_job
Every block below points at https://engine-production-3bdc.up.railway.app/mcp. Pick your client and copy.
claude mcp add --transport http vhgengine https://engine-production-3bdc.up.railway.app/mcp
{
"mcpServers": {
"vhgengine": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://engine-production-3bdc.up.railway.app/mcp"]
}
}
}{
"mcpServers": {
"vhgengine": {
"url": "https://engine-production-3bdc.up.railway.app/mcp"
}
}
}{
"servers": {
"vhgengine": {
"type": "http",
"url": "https://engine-production-3bdc.up.railway.app/mcp"
}
}
}{
"context_servers": {
"vhgengine": {
"url": "https://engine-production-3bdc.up.railway.app/mcp"
}
}
}{
"mcpServers": {
"vhgengine": {
"serverUrl": "https://engine-production-3bdc.up.railway.app/mcp"
}
}
}{
"mcpServers": {
"vhgengine": {
"url": "https://engine-production-3bdc.up.railway.app/mcp"
}
}
}name: VHGENGINE
version: 0.0.1
schema: v1
mcpServers:
- name: VHGENGINE
type: streamable-http
url: https://engine-production-3bdc.up.railway.app/mcp{
"mcpServers": {
"vhgengine": {
"httpUrl": "https://engine-production-3bdc.up.railway.app/mcp"
}
}
}{
"mcpServers": {
"vhgengine": {
"type": "http",
"url": "https://engine-production-3bdc.up.railway.app/mcp"
}
}
}{
"mcpServers": {
"vhgengine": {
"url": "https://engine-production-3bdc.up.railway.app/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fengine-production-3bdc.up.railway.app%2Fmcp&type=streamable_http&id=vhgengine&name=VHGENGINE
It answered our last check on 17 October 2026 in 292 ms. Over 10 checks since 4 September 2026 it answered 10. Status here comes from Neuronto's own probes, not from the publisher.
45, as returned by the server's own tools/list on 9 September 2026: add_credits, cancel_job, create_checkout, create_creator_profile, create_key, delete_account, delete_creator_profile, delete_webhook, and 37 more.
It answered our last check on 17 October 2026 in 292 ms. Over 10 checks since 4 September 2026 it answered 10.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://engine-production-3bdc.up.railway.app/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: app.railway.up.engine-production-3bdc. Endpoint host: engine-production-3bdc.up.railway.app. ARD identifier: urn:air:app.railway.up.engine-production-3bdc:mcp:vhgengine.
First indexed 31 August 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.