Lambda Cloud by Lambda

# Fix list: Lambda Cloud

From Anchor Terminal's listing at https://www.anchorterminal.com/tools/lambda, the October 2026 research run, assessed 1 October 2026. Grade D, 50.1 out of 100.

This is everything the published grade says the listing lacks, the biggest possible gain to the total first. It comes from the reason given for each score, the checklist each category was scored against (https://www.anchorterminal.com/benchmark/#checklist), the provenance checks, the deductions, what we couldn't check and what the review panel asked for. A fix counts at the next check, once it's public.

For a coding agent working on Lambda Cloud: work through the items below in the product, its docs and its public pages. Each category gives the reason for its score, with the points each checklist item earned, and the checklist itself, so the gap is the items that earned less than their points. Change the product, not the wording, and keep a note of what you changed and where it's published.

## 1. Reliability, 50 out of 100, up to 10 more on the total

Why it scored 50: incident.io page at status.lambda.ai with history and an RSS feed (20). Ten incidents between 27 July and 23 September 2026, at least three of them major. Launches and terminations stalled across several regions for about 3 hours on 27 July, us-east-2 lost external networking for about 22 hours on 29 and 30 July, and us-south-2 instances were unreachable from 15 to 17 August, about two days (0). Rate limits published, one request a second and one launch every 12 seconds (15). A 429 comes back with the code `global/rate-limited`, but there's no Retry-After or backoff guidance and no idempotency for launch (5 of 15). No SLA found (0). The Cloud API is GA (10).

The checklist (https://www.anchorterminal.com/benchmark/#checklist-reliability):

Hosted APIs, MCP servers, models and platforms.

- 20, a public status page with component history (Statuspage, Instatus, BetterStack or the vendor's own).
- 0 to 30, the incident record for the last 90 days on that page. 30 for a clean record or trivial incidents only, 20 for minor incidents only, 10 for one major outage (an hour or more of a core API down, or errors across the board), 0 for several. 5 when there's no history we could read, and the note says so.
- 15, rate limits documented with numbers.
- 15, documented 429 or overload handling (Retry-After, backoff guidance), and idempotency keys or safe-retry guidance where writes are involved.
- 10, an SLA published for any paid tier.
- 10, the surface agents use is generally available, not beta or preview.

Local packages, SDKs, frameworks and stdio MCP servers.

- 20, installs from an official package with supported runtimes stated.
- 25, a public CI and test suite, passing on the default branch.
- 0 to 25, open crash or regression issues relative to activity (25 for few and handled, 0 for many, old and unanswered).
- 15, semver discipline and breaking changes called out in a changelog.
- 15, version 1.0 or later, or declared stable.

Protocols are read from their reference implementations, the public facilitators or servers, spec stability and test vectors.

## 2. Payments & pricing, 20 out of 100, up to 10 more on the total

Why it scored 20: No machine payment protocol (0). Per-GPU hourly prices published without a login (20). No free tier or trial (0). Signup is a browser flow with billing details (0).

The checklist (https://www.anchorterminal.com/benchmark/#checklist-payments):

The published rubric, also on the [x402 page](https://www.anchorterminal.com/x402/).

- 40, a machine payment protocol (x402, MPP or L402) on the tool's own endpoints. 10 to 30 when it covers only some endpoints or only goes through a third party, and the note says which.
- 20, per-call or per-unit pricing published without a login. 10 for public plan-only pricing, 0 for "contact sales" or prices behind a login.
- 20, a free tier or trial that doesn't need a card.
- 20, autonomous onboarding, meaning an agent can get access without a person signing up in a browser (keyless use, x402, a programmatic key API).

Payment platforms and agent wallets rarely charge for their own API over a machine protocol, so the first line has steps for them, and the highest one that applies counts. 40 when x402, MPP or L402 runs on all their own endpoints, 30 when it runs on part of their own API, 25 when their merchants can accept one, 20 for running a facilitator, 15 for paying as a buyer, and 0 when the only protocol is their own. Merchant acceptance sits above a facilitator because the platform's own customers can charge agents through it, while a facilitator settles for sellers who wire up the protocol themselves. The counter-argument (a facilitator does more for the protocol as a whole) has a point. Each note says which step applied.

Open-source software you run yourself is scored on its hosted or paid option if it has one. A free, self-hosted package with nothing to buy gets 20, 20 and 20 for the last three lines, and 0 to 40 for the first only if it ships a payment protocol.

## 3. Maintenance & community, 5 out of 100, up to 8.3 more on the total

Why it scored 5: No changelog or release notes found (docs.lambda.ai/release-notes returns 404), so we couldn't date the last API change; the spec reads 1.10.0 (0). No dated changes in the last 90 days found (0). Closed service with a status page that posts updates and a support-ticket API, but no changelog (5 of 15). No official SDK (0). No packages to assess (0).

The checklist (https://www.anchorterminal.com/benchmark/#checklist-maintenance):

- 0 to 30, time since the last release, or the last published model or API change for a closed service. 30 within 30 days, 20 within 90, 10 within 180, 0 older.
- 20, at least three releases or dated changelog entries in the last 90 days.
- 0 to 25, responsiveness. Issues and pull requests answered on GitHub (the open issues and how recent the replies are). For closed services, a public changelog and a support or community channel that answers, 0 to 15.
- 15, presence in the official MCP registry under a verified namespace (MCP servers), or current official SDKs (APIs and models).
- 10, package health, current dependencies and CI.

Models are read for deprecation notice periods and model churn rather than release counts.

## 4. Security & auth, 60 out of 100, up to 7 more on the total

Why it scored 60: Plain API keys, revocable in the dashboard, sent as Bearer or, as a legacy option, HTTP Basic in the header; no scopes (20). No read-only keys or roles found; firewall rulesets can be managed over the API to limit what reaches an instance (5). Returns infrastructure metadata, no third-party content (10). An audit events endpoint lists API key and resource changes with time and type filters (15). Trust portal lists SOC 2 Type 2, ISO 27001, 27017, 27701 and 22301 and a disclosure contact; security.txt expired on 1 June 2026, no bug bounty found (10).

The checklist (https://www.anchorterminal.com/benchmark/#checklist-security):

- 0 to 30, the credential model. 30 for OAuth 2.1 with scopes, or scoped and revocable keys with rotation. 20 for plain revocable API keys. 10 for one all-powerful key. 10 off when a secret can travel in a URL query string as a documented option.
- 0 to 20, read-only or least-privilege modes, and confirmation or approval for destructive actions.
- 0 to 15, prompt-injection posture where the tool returns untrusted content (documented mitigations or guidance). A tool that returns no untrusted content gets 10.
- 0 to 15, audit logs or per-call visibility for the operator.
- 0 to 20, a security programme. security.txt or a disclosure policy, a bug bounty, SOC 2 or ISO 27001, advisories handled in public.

Models are read for retention, whether API data trains models (and whether that's off by default), zero-retention options and certifications. Frameworks for telemetry defaults, approval hooks, guardrails and sandboxing.

## 5. Agent ergonomics, 63 out of 100, up to 6 more on the total

Why it scored 63: Responses wrap a `data` payload and lists use `page_token`; no field selection (15). Cursor pagination, and audit events filter by start, end and resource type (18). Errors carry a stable `code`, a `suggestion` and a `request_id`, and the docs tell clients to branch on `code` (20). No idempotency keys and nothing on safe retries for launch; 409 signals conflicts (5). Launch needs region, instance type and SSH key names, and there's no official SDK (5).

The checklist (https://www.anchorterminal.com/benchmark/#checklist-ergonomics):

- 0 to 25, context cost. For MCP, the number and size of the tool definitions (25 for ten or fewer compact tools, 15 for 11 to 30, 5 for more than 30, plus up to 10 back for toolsets, dynamic loading or read-only subsets). For APIs, whether responses can be sized (field selection, limits, summaries).
- 20, pagination, filtering and output-size controls.
- 20, actionable, documented error responses, codes and messages an agent can recover from.
- 20, idempotency or safe retries, and for MCP the `readOnlyHint` and `destructiveHint` annotations.
- 15, sensible defaults, few required parameters, and official SDKs in at least two languages.

Models are read for tool use, structured output, prompt caching, context length, batch and SDKs. Frameworks for how much code and how many defaults a tool-calling agent with MCP needs.

## 6. Schema & documentation, 69 out of 100, up to 5 more on the total

Why it scored 69: Public OpenAPI 3.1 spec at docs.lambda.ai/api/cloud/spec.json, version 1.10.0 (25). No llms.txt (docs.lambda.ai/llms.txt returns 404) and no Markdown twins (0). Operations are described with preconditions, for example a filesystem must be unmounted before deletion, but few say when not to call them (14). Required fields are marked; instance type names and statuses are plain strings rather than enums (10). Examples on requests and responses, and 400, 401, 403, 404, 409 and 429 documented with a `code`, `message` and `suggestion` (15). The spec is versioned and flags `/file-systems` as deprecated, but there's no public changelog or release notes (5).

The checklist (https://www.anchorterminal.com/benchmark/#checklist-schema):

APIs and MCP servers.

- 25, a machine-readable contract (a public OpenAPI file or similar; for MCP, typed JSON Schema inputs on every tool).
- 10, llms.txt or Markdown docs served for agents.
- 0 to 20, descriptions that say what a tool is for, when to use it and when not to, read from the tool definitions in the source or the API reference.
- 0 to 15, typed inputs with enums, constraints and required fields, and no free-form JSON blobs.
- 0 to 15, examples and documented error responses.
- 15, versioning and a public changelog.

Models are read from the API reference, the OpenAPI file, llms.txt, the structured-output and tool-use docs and the model cards. Frameworks from docs a model can follow, typed interfaces, examples and the API reference.

## 7. Transparency & trust, 59 out of 100, up to 3.6 more on the total

Made of editorial 48, provenance 70.

Why it scored 59: Closed service under California terms dated August 2025 (15). A privacy policy dated 1 January 2026 exists, but we found no retention period for instance disks or filesystems after termination, and the trust portal says none either (10). One dated deprecation in the spec (`/file-systems` in favour of `/filesystems`, not scheduled for removal) and no deprecation policy (8). The trust portal names its subprocessors (Cloudflare, Oracle) and the docs name each region (15).

The checklist (https://www.anchorterminal.com/benchmark/#checklist-transparency):

- 0 to 30, source availability and licence clarity. 30 for open source under an OSI licence, 15 for closed with clear terms, 0 for unclear terms.
- 0 to 30, data handling and retention statements that agree with each other (privacy policy, DPA, retention periods, subprocessors).
- 0 to 20, a deprecation policy or notices with dates.
- 0 to 20, telemetry disclosed with an opt-out (local software), or subprocessors and data locations disclosed (hosted).

The other half of Transparency and trust is the provenance score, computed from checked facts (below). The category score is the mean of the two.

Provenance checks not met in full (half of this category, computed from checked facts):

- Domain age: lambda.ai, no registry record we could read (0 of 15)
- Changelog: not found (0 of 10)
- security.txt: published but past its Expires date (5 of 10)

## What we couldn't check

What we couldn't read counted as absent. Publishing it on a page a plain HTTP fetch can read (not only in a browser) lets the next check count it.

- We found no dated release notes, so the time since the last API change is unknown.
- The previous listing said the status page showed no incidents in the last 90 days; the feed shows ten, so we corrected `notable`.
- We didn't find a retention period for instance disks or filesystems after termination.
- The SLA for 1-Click Clusters, if any, sits in contracts we couldn't read.

## Weaknesses

- No scale to zero, autoscaling or endpoints; an idle VM bills until terminated
- Ten status incidents in two months, including a two-day regional outage in August 2026
- No changelog, no llms.txt and no official SDK
- API keys have no scopes and launch has no idempotency key
- security.txt expired on 1 June 2026 and no free tier

## What costs an agent a turn today

The notes we give agents before they call it. Each one is a workaround an agent shouldn't need.

- Call `GET /instance-types` first and read `regions_with_capacity_available` before trying to launch
- Space launch calls 12 seconds apart; a sixth in a minute returns 429 with `global/rate-limited`
- Branch on the error `code`, not the `message` or `suggestion`, which Lambda says may change
- List instances before retrying a failed launch, since there's no idempotency key and a retry can start a second machine
- Terminate the instance in a `finally` block; billing runs by the minute until you do

## What the review panel asked for

- auto-terminate after an idle timeout
- publish filesystem rates
- Add an idempotency key to launch
- Return Retry-After on 429

## When it's done

Send what changed and where it's published as a dispute (https://www.anchorterminal.com/builders/#disputes, or `POST https://www.anchorterminal.com/api/v1/contact` with `"kind": "dispute"`). Disputes are answered in public, and the listing is checked again by the same checklist. Paying for an audit or a listing claim changes nothing here.