Blocks

Blocks is a cloud cost-optimization service that guarantees up to 20% savings on AWS spend by aggregating the purchasing power of hundreds of companies into group-buying negotiations, then layering automated cloud management on top. Its AI-powered DevOps agent, Major Tom, continuously monitors connected AWS accounts through read-only billing access, surfaces cost-saving and security findings in Slack, and can propose Terraform fixes without requiring root or code access. Onboarding is a one-click read-only AWS cost-data integration with no long-term contracts and no infrastructure changes. Blocks is backed by Speedinvest and is profiled in the API Evangelist network; it currently exposes a marketing and product surface rather than a public developer API.

Blocks is profiled on the APIs.io network. Tagged areas include Company, Cloud, Amazon Web Services, Cost Optimization, and FinOps.

Blocks’ developer surface includes pricing, signup flow, support, YouTube channel, and 7 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

17.5/100 emerging ▬ flat Agent 12/100 agent aware Front door AI 4/6 moderate saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaid

0 APIs 1 MCP Servers

Company Cloud Amazon Web Services Cost Optimization FinOps DevOps Security Artificial Intelligence

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 17.5/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 0.0 / 17

Access Clarity 10.7 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.4 / 9

Regulatory Posture 1.9 / 15

Agent readiness — 12/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

11 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 0.0 — up to +20.0 composite points
Operational Transparency scores 0.0 — up to +13.0 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/blocks/apis.yml: open an issue on github.com/api-evangelist/blocks to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Blocks MCP Server

Remote MCP server at mcp.blocks.cloud over HTTP.

MCP SERVER

Blocks API pricing

Prices published by Blocks, read 2026-10-07 from blocks.cloud/pricing.

Plan	Price
Savings Plans	we take 25% of what we save you
One-off optimisations	we take the first month of the saving, then it is all yours
Major Tom and security findings	Major Tom and security findings are free.

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Blocks Plans Pricing

3 plans

PLANS

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Blocks Domain Security

TLSv1.2 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

LinkedIn

Twitter

Twitter

Source (apis.yml)

aid: blocks
name: Blocks
description: Blocks is a cloud cost-optimization service that guarantees up to 20% savings on AWS spend by aggregating the
  purchasing power of hundreds of companies into group-buying negotiations, then layering automated cloud management on top.
  Its AI-powered DevOps agent, Major Tom, continuously monitors connected AWS accounts through read-only billing access, surfaces
  cost-saving and security findings in Slack, and can propose Terraform fixes without requiring root or code access. Onboarding
  is a one-click read-only AWS cost-data integration with no long-term contracts and no infrastructure changes. Blocks is
  backed by Speedinvest and is profiled in the API Evangelist network; it currently exposes a marketing and product surface
  rather than a public developer API.
url: https://raw.githubusercontent.com/api-evangelist/blocks/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://blocks.cloud/favicon.ico
x-type: company
x-source: vc-portfolio
x-backed-by:
- speedinvest
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Cloud
- Amazon Web Services
- Cost Optimization
- FinOps
- DevOps
- Security
- Artificial Intelligence
tags_raw:
- Company
- Cloud
- AWS
- Cost Optimization
- FinOps
- DevOps
- Security
- Artificial Intelligence
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/blocks-plans-pricing.yml
- type: DomainSecurity
  url: security/blocks-domain-security.yml
- type: Website
  url: https://blocks.cloud
- type: Pricing
  url: https://blocks.cloud/pricing
- type: SignUp
  url: https://blocks.cloud/sign-up
- type: Support
  url: https://blocks.cloud/contact
- type: TermsOfService
  url: https://blocks.cloud/terms
- type: PrivacyPolicy
  url: https://blocks.cloud/privacy
- type: LinkedIn
  url: https://www.linkedin.com/company/108807307/
- type: Twitter
  url: https://x.com/blockscloud
- type: YouTube
  url: https://www.youtube.com/@BlocksCloud
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Blocks API — frequently asked questions

How much does the Blocks API cost?

Blocks publishes its prices; its Savings Plans plan is we take 25% of what we save you as of 2026-10-07. APIs.io lists 3 pricing plans for Blocks, with each plan's price, limits and inclusions under Pricing on this page.

Does Blocks have an MCP server?

Yes. APIs.io lists 1 MCP server for Blocks: Remote MCP server at mcp.blocks.cloud over HTTP.

Is the Blocks API ready for AI agents?

Blocks has a Kin Score of 17.5 out of 100 (emerging) and an Agent Readiness score of 12.2 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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Every operation they expose

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How their score was established

curl "https://apis.io/api/v1/providers/blocks/evidence"

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