Client Engine LC · private in-house AI (pay per call)
Pay-per-call AI on dedicated owned hardware (RTX 5090): code completion, review, refactor and test generation, reasoning, summarize, translate, embeddings, vector index and search, JSON repair, regex, SQL and curl helpers.
Call it
- Base URL
- https://dev-5090-box.tailfb4c1f.ts.net
- Payment
- -
$ curl -i -X POST 'https://dev-5090-box.tailfb4c1f.ts.net/v1/agent-task' An unpaid request returns HTTP 402 with the payment terms. Sign a payment authorization, then retry with the payment header named in the 402 response.
Endpoints 23 paid routes on dev-5090-box.tailfb4c1f.ts.net
15 more in Example 402 response
Prices as captured in the 402 response: median $0.03 across the 23 endpoints, unchanged since first capture.
Example 402 response
Endpoints and prices
| Method | Path | Description | Price | Network | Asset | 402 channel | Captured |
|---|---|---|---|---|---|---|---|
| POST | / | Complete a full agentic task (plan → generate → verify). Longer running. | $0.10 | Base | USDC | not captured | since 10-29 |
| POST | / | Pay-to-compose orchestrator: pulls live data (weather), routes it through two local-model stages, then an independent judge verifies the result against the source data before it ships (one bounded self-correction on rejection). Returns the composed answer, the judge's verdict, and a per-step cost ledger. | $1.00 | Base | USDC | not captured | since 10-29 |
| POST | / | Proof-of-Model: detect silent model substitution at any OpenAI-compatible inference endpoint. mode=fingerprint records what a seller serves today; mode=verify re-probes later and proves whether the weights changed. Deterministic, evidence included, no model used to judge. | $0.10 | Base | USDC | not captured | since 10-29 |
| POST | / | Agent-readiness audit of any public URL: score /100 with per-check raw evidence, published weights, and a recompute recipe. Deterministic · no model, same input gives the same score. | $0.05 | Base | USDC | not captured | since 10-29 |
| POST | / | Uncensored general chat (Qwen3.8-27B Heretic). | $0.03 | Base | USDC | not captured | since 10-29 |
| POST | / | Uncensored coder completions, served by Qwen3.8-27B abliterated (Heretic) on a local RTX 5090 via vLLM. | $0.03 | Base | USDC | not captured | since 10-29 |
| POST | / | Explain code snippet in plain English (paste code in message). | $0.02 | Base | USDC | not captured | since 10-29 |
| POST | / | Refactor code while preserving behavior. Returns diff + rationale. | $0.03 | Base | USDC | not captured | since 10-29 |
| POST | / | Structured code review: correctness, security, edge cases, reuse. Returns numbered findings. | $0.05 | Base | USDC | not captured | since 10-29 |
| POST | / | Security audit of code snippet (SQLi, XSS, auth bypass, secret leaks, unsafe deserialization). | $0.10 | Base | USDC | not captured | since 10-29 |
| POST | / | Generate tests for a code snippet (matches file's existing test framework). | $0.03 | Base | USDC | not captured | since 10-29 |
| POST | / | Convert a curl command to Python/JS/Go. Specify target language in the message. | $0.01 | Base | USDC | not captured | since 10-29 |
| POST | / | Text embeddings (768-dim). Send {"input": "text"} or {"input": ["a","b"]}. | $0.005 | Base | USDC | not captured | since 10-29 |
| POST | / | Embed and index documents into a private vector collection (768-dim, cosine). documents=[{id,text,metadata}], namespace picks the collection. Returns documents, chunks, tokens and latency. | $0.05 | Base | USDC | not captured | since 10-29 |
| POST | / | Fix broken JSON (trailing commas, single quotes, unquoted keys). Returns only valid JSON. | $0.005 | Base | USDC | not captured | since 10-29 |
| POST | / | Multi-step reasoning and planning, served by Qwen3.8-27B abliterated (Heretic) on a local RTX 5090 via vLLM. | $0.05 | Base | USDC | not captured | since 10-29 |
| POST | / | Build a regex from a natural-language description. Returns just the regex + one test string. | $0.02 | Base | USDC | not captured | since 10-29 |
| POST | / | Explain a regex in plain English. Paste the regex in message content. | $0.01 | Base | USDC | not captured | since 10-29 |
| POST | / | Search a namespace you indexed: the query is embedded on the same model and matched against your collection. Returns hits with score, text and metadata, plus latency. | $0.01 | Base | USDC | not captured | since 10-29 |
| POST | / | Explain a SQL query in plain English. Paste query in message. | $0.01 | Base | USDC | not captured | since 10-29 |
| POST | / | Summarize a document without it leaving this machine. mode=bullets|paragraph|key-points, max_words caps the length. Returns the summary, the model that wrote it, token usage and latency. | $0.05 | Base | USDC | not captured | since 10-29 |
| POST | / | Translate text into a target language (ISO code: es, de, fr, ja, pt, pl...). Optional domain and tone hints. Returns the translation, the model, usage and latency. | $0.02 | Base | USDC | not captured | since 10-29 |
| POST | / | [preview] Image understanding. Currently TEXT-FALLBACK ONLY · no vision model is loaded. Priced accordingly. | $0.02 | Base | USDC | not captured | since 10-29 |
Payment evidence
No payload capture time is available. Check evidence JSON · Measurement methodology.
No 402 response body has been captured for this service yet.
Can I trust it score from our own monitoring
score from our own monitoring
#212 of 213 in AI. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.
- Reliability
- 0% uptime since 10-29
- Compliance
- unknown not evaluated, stale (probe failing)
- Price
- $0.005 to $1.00 p35 in AI
- Risk
- clean no risk flag
- Traction
- ---
compliance checks
- 402 payload captured
- accepts[] array present
- payTo address recoverable
- payTo at accepts[0].payTo (conformant shape)
- payTo is a valid on-chain address
- atomic price declared
- atomic price in a sane range
- asset (token) address declared
- network resolves to CAIP-2
- payment scheme declared
- served over HTTPS
- declares the current x402 version (2)
- EIP-712 domain parameters present on every EVM entry
- x402 v2 envelope delivered in the payment-required header
402 terms unchanged since ---. Last up ---.
── Site signals
- homepage reachable
- openapi doc
- pricing page
- llms.txt
- robots.txt
- terms page
How the score works
What the score read on this service: status offline, 0% uptime 30d, response time not measured, no gradeable x402 checklist (scored on the unverified prior), $0.005 price against the category. Each of those is measured, and each is published in full below.
The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.
Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.
It is a score inside AI, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 213 listings, this one among them: the same 213 the position above is counted against. When the two differ, the field is the wider one, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.
All measured facts
What it does
Pay-per-call AI on dedicated owned hardware (RTX 5090): code completion, review, refactor and test generation, reasoning, summarize, translate, embeddings, vector index and search, JSON repair, regex, SQL and curl helpers. USDC on Base via x402 exact, no account needed.
Client Engine LC · private in-house AI (pay per call) is a listed x402 AI API. Captured payment terms name Base. Monitoring and settlement figures below describe the observations available to this directory; an unpaid HTTP 402 check does not prove that a paid call will deliver.
Assessment computed at . Latest service check observed at . Service data JSON · Measurement methodology.
Page rendered at . This response time is separate from the observation and computation times attached to each measurement.
Latest endpoint observation: . Latest price capture: . Prices are recorded quotes, not a promise of availability. Token assets and payment terms are listed separately. Endpoint data JSON · Price history JSON · Measurement methodology.
Assessment computed at . Uptime uses the stated daily-rollup window; response times are in milliseconds, compliance is passed/evaluated checks, and traction is a measured settlement floor. The comparison score is out of 100 within this category. Assessment JSON · Measurement methodology.
Observed daily coverage: 2026-09-30 to 2026-10-29 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. Uptime and response JSON · Volume JSON · Buyers JSON · Measurement methodology.
Ranked from the measured category pool, refreshed at most once a minute. The comparison has no persisted computation timestamp; the assessment time above belongs to this service only. Ranking API documentation · Ranking methodology.
x402 List home · Services · AI
- uptime · latest daily rollup
- 0%
- uptime 7d
- 0%
- uptime 30d
- 0%
- uptime 90d
- 0%
- response p95
- -
- avg response
- -
- total checks
- 10
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
- price (min)
- $0.005
- price (max)
- $1.00
- category percentile (min)
- p35 in AI
- category percentile (max)
- p80 in AI
- endpoints / prices
- 23 / 7
- model
- tiered
- stability
- 100%
No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.
- domain age
- -
- registrar
- -
- hosting
- custom
- domain created
- ---
Identity facts, not a risk score.
On-chain traction has not been assessed for this service yet.
- member since
- 2026-10-29
Recent checks
| Checked at (UTC) | Status | HTTP | Response | Endpoints |
|---|---|---|---|---|
| Offline | no response | 416ms | 0 | |
| Offline | no response | 18ms | 0 | |
| Offline | no response | 14ms | 0 | |
| Offline | no response | 127ms | 0 | |
| Offline | no response | 526ms | 0 | |
| Offline | no response | 423ms | 0 | |
| Offline | no response | 213ms | 0 | |
| Offline | no response | 642ms | 0 | |
| Offline | no response | 224ms | 0 | |
| Offline | no response | 127ms | 0 |
Changes0 in 30d
No changes recorded in the last 30 days.
Over time
On-chain traction has not been assessed for this service yet.
- Uptime
- 1 of 1 completed day below 100%
On-chain traction has not been assessed for this service yet.
More charts
Each series spans only the dates it has data for. Every series is also served as JSON at /api, /scores, /volume and /buyers.
Values
The uptime summary counts completed UTC days only. The strip, readouts and table retain today's partial reading.
Assessment history last recorded at . Each UTC day uses its last recorded run; missing readings stay unmeasured. Assessment history JSON · Measurement methodology.
| Day | Uptime | Response | Compliance | Price percentile | Site signals |
|---|---|---|---|---|---|
| 2026-10-29 | 0% | no data | no data | p35 | 0/6 |
Alternatives in AI
5 of 212 other ranked services in AI, ordered by the same measured score.
Own this service?
Keep this listing accurate. Ownership is proven with a domain check and every change is reviewed by hand.
Update this listingEarn the verified tier: x402list pays a real call to this endpoint and, if it delivers, the service is delivery-verified. The fee covers the cost of the probe, not the badge; there is no refund if the call does not deliver. Agent and API only, no in-browser signing. See /api.
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Delisting
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