Materialize website screenshot

Materialize

Materialize is an operational data warehouse that uses streaming SQL views maintained with sub-second latency. It exposes a PostgreSQL wire-compatible interface and a session-less HTTP API for SQL execution.

Materialize publishes 4 API contracts indexed on the APIs.io network, including Streaming Sources and Sinks (AsyncAPI), Sql API, and 2 more. Tagged areas include Streaming, Data Warehouse, SQL, Real-Time, and PostgreSQL Compatible.

The Materialize catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Materialize’s developer surface includes authentication, developer portal, pricing, engineering blog, and 9 more developer resources.

34.5/100 thin ▬ flat Agent 19/100 agent aware Front door AI 5/6 prominent Heartbeat 82/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →
AccessFreemiumSelf serve⚡ Free to try
1 published contract
StreamingData WarehouseSQLReal-TimePostgreSQL Compatible

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0
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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.
The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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):
  • MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
  • 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
  • Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
  • Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
8 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
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/materialize/apis.yml: open an issue on github.com/api-evangelist/materialize 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

MarketPositionDepthRegistered MCP serverDeclares compatibility
Databases (PostgreSQL wire) builds-on 51.7 - 2
Agent Skills (SKILL.md packages) builds-on 51.7 - 2
Infrastructure-as-Code Provider Registries (Terraform, OpenTofu, Pulumi) builds-on 51.7 - 2

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

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.

measured — observed by APIs.io (published)
measured — observed by APIs.io (published)

APIs 4

Individual APIs this provider publishes, each with its own machine-readable definition.

Materialize HTTP API

Session-less HTTP API for executing SQL statements against a Materialize region. Authenticates with HTTP Basic (email + app password). Supports a simple mode with a single query...

Materialize PostgreSQL Wire Protocol

Materialize speaks the PostgreSQL wire protocol on port 6875, so any psql or libpq-based client (Go, Java, Node.js, PHP, Python, Ruby, Rust) can connect and run streaming SQL.

Materialize Streaming Sources and Sinks (AsyncAPI)

AsyncAPI 2.6 description of Materialize's event-driven integration surface: Kafka sources (CREATE SOURCE ... FROM KAFKA), Kafka sinks (CREATE SINK ... INTO KAFKA), and HTTP webh...

Materialize Sql API

The Sql API from Materialize — 1 operation(s) for sql.

Open Collections 2

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Materialize HTTP Sql API

OPEN COLLECTION

Materialize HTTP API

OPEN COLLECTION

Materialize API pricing

Not yet checked against Materialize's own pricing page. Compiled by API Evangelist on 2026-05-08; confirm before you rely on a figure. A free plan or tier is listed.

PlanPrice
Free freemium Free
Professional paid Free
Enterprise enterprise —

Plan details, limits and sources →

Rate limits

Compiled by API Evangelist, not yet checked against Materialize's documentation. All 5 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

Materialize Rate Limits

5 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

FinOps 1

Cost, billing, and metering signals for API financial operations.

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Materialize Streaming Sources and Sinks

AsyncAPI description of Materialize's streaming integration surface. Materialize is an operational data warehouse that ingests events from external message brokers and HTTP webh...

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Materialize — asyncapi rules

6 rules · 6 warnings

SPECTRAL

Security Posture 3

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

Materialize Authentication

http · 1 scheme

SECURITY

Materialize Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Materialize Agentic Access

1 operation · 1 acting

1 operations · 1 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Build 1

SDKs, sample code, and the tooling you integrate with

Access & Security 3

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Commercial 3

Pricing, plans, and the legal terms of use

Company 3

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: materialize
url: https://raw.githubusercontent.com/api-evangelist/materialize/refs/heads/main/apis.yml
name: Materialize
kind: company
description: Materialize is an operational data warehouse that uses streaming SQL views maintained with sub-second latency.
  It exposes a PostgreSQL wire-compatible interface and a session-less HTTP API for SQL execution.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/materialize.png
tags:
- Streaming
- Data Warehouse
- SQL
- Real-Time
- PostgreSQL Compatible
created: '2026-05-08'
modified: '2026-05-29'
specificationVersion: '0.23'
apis:
- aid: materialize:materialize-http-api
  name: Materialize HTTP API
  humanURL: https://materialize.com/docs/integrations/http-api/
  baseURL: https://{mz_host}/api/sql
  tags:
  - SQL
  - HTTP
  - Streaming
  description: Session-less HTTP API for executing SQL statements against a Materialize region. Authenticates with HTTP Basic
    (email + app password). Supports a simple mode with a single query and an extended mode that submits an array of queries,
    each with optional parameters. Does not support session-bound statements such as SUBSCRIBE, DECLARE, FETCH, or COPY.
  properties:
  - type: Documentation
    url: https://materialize.com/docs/integrations/http-api/
  - type: Authentication
    url: https://materialize.com/docs/manage/access-control/
- aid: materialize:materialize-pgwire
  name: Materialize PostgreSQL Wire Protocol
  humanURL: https://materialize.com/docs/integrations/
  baseURL: postgres://{user}@{mz_host}:6875/materialize
  tags:
  - SQL
  - PostgreSQL
  - psql
  - Wire Protocol
  description: Materialize speaks the PostgreSQL wire protocol on port 6875, so any psql or libpq-based client (Go, Java,
    Node.js, PHP, Python, Ruby, Rust) can connect and run streaming SQL.
  properties:
  - type: Documentation
    url: https://materialize.com/docs/integrations/
- aid: materialize:materialize-streaming-asyncapi
  name: Materialize Streaming Sources and Sinks (AsyncAPI)
  humanURL: https://materialize.com/docs/sql/create-source/
  baseURL: https://materialize.com/docs/
  tags:
  - Streaming
  - Kafka
  - Webhook
  - AsyncAPI
  - Sources
  - Sinks
  tags_raw:
  - Streaming
  - Kafka
  - Webhooks
  - AsyncAPI
  - Sources
  - Sinks
  description: 'AsyncAPI 2.6 description of Materialize''s event-driven integration surface: Kafka sources (CREATE SOURCE
    ... FROM KAFKA), Kafka sinks (CREATE SINK ... INTO KAFKA), and HTTP webhook sources (CREATE SOURCE ... FROM WEBHOOK).
    SUBSCRIBE is documented in the spec as an informational pgwire server only; AsyncAPI 2.6 has no standard binding for the
    PostgreSQL wire protocol, so it is intentionally not modelled as a channel.'
  properties:
  - type: AsyncAPI
    url: asyncapi/materialize-asyncapi.yml
  - type: Documentation
    url: https://materialize.com/docs/sql/create-source/kafka/
  - type: Documentation
    url: https://materialize.com/docs/sql/create-sink/kafka/
  - type: Documentation
    url: https://materialize.com/docs/sql/create-source/webhook/
  - type: Documentation
    url: https://materialize.com/docs/sql/subscribe/
- aid: materialize:materialize-sql-api
  name: Materialize Sql API
  description: The Sql API from Materialize — 1 operation(s) for sql.
  humanURL: https://materialize.com/docs/integrations/http-api/
  baseURL: https://{mz_host}/api/sql
  tags:
  - SQL
  tags_raw:
  - Sql
  properties:
  - type: OpenAPI
    url: openapi/materialize-sql-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/materialize-agentic-access.yml
- type: TrustCenter
  url: security/materialize-trust-center.yml
- type: DomainSecurity
  url: security/materialize-domain-security.yml
- type: Authentication
  url: authentication/materialize-authentication.yml
- type: GitHubOrganization
  url: https://github.com/MaterializeInc
- type: LinkedIn
  url: https://www.linkedin.com/company/materializeinc
- type: Website
  url: https://materialize.com/
- type: Portal
  url: https://materialize.com/docs/
- type: Pricing
  url: https://materialize.com/pricing
- type: Plans
  url: plans/materialize-plans-pricing.yml
- type: RateLimits
  url: rate-limits/materialize-rate-limits.yml
- type: FinOps
  url: finops/materialize-finops.yml
- url: https://materialize.com/rss.xml
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Materialize API — frequently asked questions

Does Materialize have an API?

Yes. APIs.io lists 4 APIs from Materialize, including Materialize HTTP API, Materialize PostgreSQL Wire Protocol and Materialize Streaming Sources and Sinks (AsyncAPI), and 1 more.

Is there an OpenAPI specification for the Materialize API?

Yes. APIs.io indexes 1 OpenAPI specification for Materialize, each linked for download from this page.

How do I authenticate with the Materialize API?

Materialize uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Materialize Authentication.

How much does the Materialize API cost?

APIs.io lists 3 pricing plans for Materialize, with each plan's price, limits and inclusions under Pricing on this page.

Is the Materialize API ready for AI agents?

Materialize has a Kin Score of 34.5 out of 100 (thin) and an Agent Readiness score of 19.0 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

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  • 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.
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