Mango Markets

Mango Markets is a decentralized derivatives exchange and money market built on Solana, operated by the Blockworks Foundation. Mango v4 introduces unified margin accounts that combine spot trading, perpetual futures, and borrow/lend in a single risk engine, settled by the on-chain Mango v4 program. Beyond the on-chain program and the TypeScript client, the project exposes low-latency public market-data feeds through the mango-feeds geyser services - the Fills Feed (service-mango-fills, fills.mngo.cloud) and the Orderbook Feed (service-mango-orderbook, orderbook.mngo.cloud) - which stream fill events and L2/L3 orderbook state for Mango V4 Perp markets and Openbook spot markets over WebSocket.

Mango Markets publishes 2 APIs on the APIs.io network: Mango v4 Fills Feed and Mango v4 Orderbook Feed. Tagged areas include Cryptocurrency, DeFi, Decentralized Exchange, Perpetual Futures, and Spot.

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

Mango Markets’ developer surface includes documentation and 5 more developer resources.

15.4/100 emerging ▬ flat Agent 17/100 agent aware Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0
2 APIs
CryptocurrencyDeFiDecentralized ExchangePerpetual FuturesSpotMarginOrder BookFillsMarket DataWebSocketSolanaMango v4

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0
Composite quality — 15.4/100 · emerging
Contract Quality 8.5 / 21
Developer Ergonomics 1.6 / 17
Access Clarity 0.0 / 17
Operational Transparency 0.3 / 11
Contract Governance 1.4 / 10
Discoverability 5.8 / 9
Regulatory Posture 0.0 / 15
Agent readiness — 17/100 · agent aware
Machine-Readable Contract 18 / 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 0 / 7
Typed Event Surface 6 / 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
Regulatory Posture applies to this provider. Its tags matched the Securities & Market Data 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.
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/.
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/mango-markets: 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 2

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

Mango v4 Fills Feed

Low-latency WebSocket feed (service-mango-fills) that parses Mango V4 Perp and Openbook event queues and emits individual fill events as they are processed by the validator. Sup...

Mango v4 Orderbook Feed

Low-latency WebSocket feed (service-mango-orderbook) that parses Mango V4 Perp and Openbook spot bookside accounts and emits L2 (price / quantity) and L3 (per-order) checkpoints...

Event Specifications 1

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

Mango Markets v4 Feeds API

AsyncAPI definition for the two public Mango Markets v4 WebSocket feed services operated by Blockworks Foundation: the Fills Feed (service-mango-fills) and the Orderbook Feed (s...

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Mango Markets API Rules

6 rules · 1 errors 4 warnings 1 info

SPECTRAL

Resources

Documentation 1

Reference material describing how the API behaves

Build 2

SDKs, sample code, and the tooling you integrate with

Operate 1

Status, limits, changes, and where to get help

Commercial 1

Pricing, plans, and the legal terms of use

Company 1

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: mango-markets
url: https://raw.githubusercontent.com/api-evangelist/mango-markets/refs/heads/main/apis.yml
name: Mango Markets
kind: company
description: Mango Markets is a decentralized derivatives exchange and money market built on Solana, operated by the Blockworks
  Foundation. Mango v4 introduces unified margin accounts that combine spot trading, perpetual futures, and borrow/lend in
  a single risk engine, settled by the on-chain Mango v4 program. Beyond the on-chain program and the TypeScript client, the
  project exposes low-latency public market-data feeds through the mango-feeds geyser services - the Fills Feed (service-mango-fills,
  fills.mngo.cloud) and the Orderbook Feed (service-mango-orderbook, orderbook.mngo.cloud) - which stream fill events and
  L2/L3 orderbook state for Mango V4 Perp markets and Openbook spot markets over WebSocket.
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/mango-markets.png
tags:
- Cryptocurrency
- DeFi
- Decentralized Exchange
- Perpetual Futures
- Spot
- Margin
- Order Book
- Fills
- Market Data
- WebSocket
- Solana
- Mango v4
tags_raw:
- Cryptocurrency
- DeFi
- Decentralized Exchange
- Perpetual Futures
- Spot
- Margin
- Orderbook
- Fills
- Market Data
- WebSocket
- Solana
- Mango v4
created: '2026-05-30'
modified: '2026-05-30'
specificationVersion: '0.23'
x-category: Cryptocurrency
x-tier: 1
x-type: company
apis:
- aid: mango-markets:fills-feed
  name: Mango v4 Fills Feed
  description: Low-latency WebSocket feed (service-mango-fills) that parses Mango V4 Perp and Openbook event queues and emits
    individual fill events as they are processed by the validator. Supports getMarkets discovery, subscribe / unsubscribe
    by marketIds or by Mango account, and an optional headUpdates mode that emits event-queue head pointer updates. Fill events
    that occurred on a fork are revoked via a status='revoke' message.
  humanURL: https://github.com/blockworks-foundation/mango-feeds/tree/lou/l3-feed/service-mango-fills
  baseURL: wss://fills.mngo.cloud
  tags:
  - WebSocket
  - Fills
  - Market Data
  - Perpetuals
  - Spot
  - Solana
  properties:
  - type: Documentation
    url: https://github.com/blockworks-foundation/mango-feeds/blob/lou/l3-feed/service-mango-fills/README.md
  - type: AsyncAPI
    url: asyncapi/mango-markets-feeds-asyncapi.yml
  - type: SourceCode
    title: service-mango-fills (Rust)
    url: https://github.com/blockworks-foundation/mango-feeds/tree/lou/l3-feed/service-mango-fills
  - type: SDKs
    title: '@blockworks-foundation/mango-feeds-client (TypeScript)'
    url: https://github.com/blockworks-foundation/mango-feeds/tree/main/ts/client
  - type: PublicAPI
    title: Public Fills API entrypoint
    url: https://api.mngo.cloud/fills/v1/
- aid: mango-markets:orderbook-feed
  name: Mango v4 Orderbook Feed
  description: Low-latency WebSocket feed (service-mango-orderbook) that parses Mango V4 Perp and Openbook spot bookside accounts
    and emits L2 (price / quantity) and L3 (per-order) checkpoints and per-side delta updates. Clients subscribe with subscriptionType=level
    for L2 or subscriptionType=book for L3; the server returns an initial checkpoint followed by streaming per-side updates
    with slot and writeVersion for ordering.
  humanURL: https://github.com/blockworks-foundation/mango-feeds/tree/lou/l3-feed/service-mango-orderbook
  baseURL: wss://orderbook.mngo.cloud
  tags:
  - WebSocket
  - Order Book
  - L2
  - L3
  - Market Data
  - Perpetuals
  - Spot
  - Solana
  tags_raw:
  - WebSocket
  - Orderbook
  - L2
  - L3
  - Market Data
  - Perpetuals
  - Spot
  - Solana
  properties:
  - type: Documentation
    url: https://github.com/blockworks-foundation/mango-feeds/blob/lou/l3-feed/service-mango-orderbook/README.md
  - type: AsyncAPI
    url: asyncapi/mango-markets-feeds-asyncapi.yml
  - type: SourceCode
    title: service-mango-orderbook (Rust)
    url: https://github.com/blockworks-foundation/mango-feeds/tree/lou/l3-feed/service-mango-orderbook
  - type: SDKs
    title: '@blockworks-foundation/mango-feeds-client (TypeScript)'
    url: https://github.com/blockworks-foundation/mango-feeds/tree/main/ts/client
  - type: PublicAPI
    title: Public Orderbook API entrypoint
    url: https://api.mngo.cloud/orderbook/v1/
common:
- type: IssueTracker
  url: https://github.com/blockworks-foundation/mango-feeds/issues
- type: License
  name: AGPL-3.0
  url: https://github.com/blockworks-foundation/mango-feeds/blob/main/LICENSE
- type: Website
  url: https://mango.markets
- type: Documentation
  url: https://docs.mango.markets
- type: GitHubOrganization
  url: https://github.com/blockworks-foundation
- type: SourceCode
  title: mango-feeds
  url: https://github.com/blockworks-foundation/mango-feeds
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com