WasmEdge

WasmEdge is a lightweight, high-performance, and extensible WebAssembly runtime for cloud native, edge, and decentralized applications. It powers serverless apps, embedded functions, microservices, smart contracts, and IoT devices. WasmEdge is a CNCF sandbox project providing an LLVM-based AoT compiler for maximum performance, and supporting WASI extensions for non-blocking networking, database access, and AI inference via TensorFlow, PyTorch, and OpenVINO.

WasmEdge publishes 5 APIs on the APIs.io network. Tagged areas include Cloud-Native, CNCF, Edge Computing, High Performance, and Runtime.

The WasmEdge catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

WasmEdge’s developer surface includes documentation, getting-started guide, engineering blog, and 13 more developer resources.

🌐 Visit website 📡 Source on GitHub

21.3/100 emerging ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessFreemium

5 APIs

Cloud-Native CNCF Edge Computing High Performance Runtime Serverless Wasm WebAssembly

Kin Score

Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0

Composite quality — 21.3/100 · emerging

Contract Quality 3.7 / 25

Developer Ergonomics 2.9 / 20

Access Clarity 3.2 / 20

Operational Transparency 1.4 / 13

Contract Governance 3.0 / 12

Discoverability 7.2 / 10

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 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 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/wasmedge: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 5

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

Rate Limits 1

Documented rate limits and quota policies.

Wasmedge Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

Examples 2

Example request and response payloads for these APIs.

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

JSONSchema

JSONSchema

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Vocabulary

JSONLD

JSONStructure

Vocabulary

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

GitHubRepository

GitHubRepository

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Slack

Slack

Discord

Discord

Commercial 1

Pricing, plans, and the legal terms of use

License

License

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: wasmedge
name: WasmEdge
description: WasmEdge is a lightweight, high-performance, and extensible WebAssembly runtime for cloud native, edge, and decentralized
  applications. It powers serverless apps, embedded functions, microservices, smart contracts, and IoT devices. WasmEdge is
  a CNCF sandbox project providing an LLVM-based AoT compiler for maximum performance, and supporting WASI extensions for
  non-blocking networking, database access, and AI inference via TensorFlow, PyTorch, and OpenVINO.
url: https://wasmedge.org
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/wasmedge.png
tags:
- Cloud-Native
- CNCF
- Edge Computing
- High Performance
- Runtime
- Serverless
- Wasm
- WebAssembly
tags_raw:
- Cloud Native
- CNCF
- Edge Computing
- High Performance
- Runtime
- Serverless
- Wasm
- WebAssembly
created: '2026-03-26'
modified: '2026-05-03'
specificationVersion: '0.23'
type: Index
apis:
- aid: wasmedge:wasmedge-c-api
  name: WasmEdge C API
  description: The WasmEdge C API provides a low-level interface for embedding the WasmEdge runtime into C/C++ host applications.
    It exposes the full WasmEdge runtime capabilities including module instantiation, function invocation, memory access,
    and plugin management.
  humanURL: https://wasmedge.org/docs/embed/c/intro/
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  properties:
  - type: Documentation
    url: https://wasmedge.org/docs/embed/c/intro/
  - type: GitHubRepository
    url: https://github.com/WasmEdge/WasmEdge
  tags:
  - C API
  - Embedding
  - Low-Level
  tags_raw:
  - C API
  - Embedding
  - Low Level
- aid: wasmedge:wasmedge-rust-sdk
  name: WasmEdge Rust SDK
  description: The WasmEdge Rust SDK enables embedding WasmEdge WebAssembly functions in Rust host applications. It provides
    idiomatic Rust bindings for the WasmEdge C API, supporting module loading, instantiation, function calls, host function
    definitions, and plugin integration.
  humanURL: https://wasmedge.org/docs/embed/rust/intro/
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  properties:
  - type: Documentation
    url: https://wasmedge.org/docs/embed/rust/intro/
  - type: GitHubRepository
    url: https://github.com/WasmEdge/wasmedge-rust-sdk
  tags:
  - Rust
  - SDK
  - Embedding
- aid: wasmedge:wasmedge-go-sdk
  name: WasmEdge Go SDK
  description: The WasmEdge Go SDK provides Go language bindings for embedding the WasmEdge runtime in Go applications. It
    enables loading and executing WebAssembly modules from Go, defining host functions, and managing WasmEdge configurations
    programmatically.
  humanURL: https://wasmedge.org/docs/embed/go/intro/
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  properties:
  - type: Documentation
    url: https://wasmedge.org/docs/embed/go/intro/
  - type: GitHubRepository
    url: https://github.com/second-state/WasmEdge-go
  tags:
  - Go
  - SDK
  - Embedding
- aid: wasmedge:wasmedge-nodejs-sdk
  name: WasmEdge Node.js SDK
  description: The WasmEdge Node.js SDK allows embedding and calling WebAssembly functions from Node.js applications. It provides
    bindings for executing Wasm modules within the WasmEdge runtime from JavaScript, enabling high-performance compute from
    Node.js services.
  humanURL: https://wasmedge.org/docs/embed/node/
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  properties:
  - type: Documentation
    url: https://wasmedge.org/docs/embed/node/
  tags:
  - Node.js
  - JavaScript
  - SDK
  - Embedding
- aid: wasmedge:wasmedge-plugin-system
  name: WasmEdge Plugin System
  description: WasmEdge's plugin system enables extending the runtime with custom host function packages. Plugins can be developed
    in Rust or C/C++ and loaded at runtime, providing capabilities like TensorFlow AI inference, image processing, database
    drivers, and WASI networking extensions.
  humanURL: https://wasmedge.org/docs/contribute/plugin/
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  properties:
  - type: Documentation
    url: https://wasmedge.org/docs/contribute/plugin/
  - type: GitHubRepository
    url: https://github.com/WasmEdge/WasmEdge
  tags:
  - Plugins
  - Extensions
  - TensorFlow
  - Artificial Intelligence
  tags_raw:
  - Plugins
  - Extensions
  - TensorFlow
  - AI
common:
- type: License
  name: Apache-2.0
  url: https://github.com/WasmEdge/WasmEdge/blob/master/LICENSE
- type: DomainSecurity
  url: security/wasmedge-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/second-state
- type: Website
  url: https://wasmedge.org/
- type: Documentation
  url: https://wasmedge.org/docs/
- type: GettingStarted
  url: https://wasmedge.org/docs/start/getting-started/
- type: GitHubOrganization
  url: https://github.com/WasmEdge
- type: GitHubRepository
  url: https://github.com/WasmEdge/WasmEdge
- type: Blog
  url: https://wasmedge.org/blog/
- type: Slack
  url: https://wasmedge.slack.com/
- type: Discord
  url: https://discord.gg/U4B5sFTkFc
- type: Vocabulary
  url: vocabulary/wasmedge-vocabulary.yml
- type: JSONLD
  url: json-ld/wasmedge-context.jsonld
- type: JSONSchema
  url: json-schema/wasmedge-config-schema.json
- type: JSONStructure
  url: json-structure/wasmedge-config-structure.json
- type: Vocabulary
  url: vocabulary/wasmedge-vocabulary.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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