SynFutures

SynFutures is an on-chain derivatives and real-world-asset (RWA) trading protocol that brings crypto perpetuals, tokenized stocks, and ETFs on-chain across Base, Ethereum, and Monad. For developers it exposes a RESTful RWA Trading API (market data, portfolio, order placement, cash and stock operations, and One Click delegated trading) secured with HMAC-SHA256 signed, IP-whitelisted API keys, plus TypeScript SDKs (@synfutures/sdks-perp and oyster-sdk) and on-chain smart contracts for the Oyster (V3) protocol. Backed by Pantera Capital and Polychain.

SynFutures publishes 6 APIs on the APIs.io network, including Cash API, Market Data API, One Click API, and 3 more. Tagged areas include Company, Crypto, DeFi, Trading, and Derivatives.

SynFutures’ developer surface includes documentation, API reference, getting-started guide, signup flow, authentication, and 17 more developer resources.

🌐 Visit website 📡 Source on GitHub

34.2/100 thin ▬ flat Agent 25/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs

Company Crypto DeFi Trading Derivatives Real World Assets Blockchain

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 34.2/100 · thin

Contract Quality 9.7 / 19

Developer Ergonomics 8.8 / 15

Access Clarity 0.0 / 15

Operational Transparency 2.3 / 10

Contract Governance 0.4 / 9

Discoverability 5.7 / 8

Regulatory Posture 4.2 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 25/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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 Well-Known Document 0 / 5

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.

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/.

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 github.com/api-evangelist/synfutures: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 6

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

SynFutures Cash API

Cash (USD) deposits and withdrawals

SynFutures Market Data API

On-chain market config, symbols, prices, and corporate actions

SynFutures One Click API

One Click Trading (1CT) delegation lifecycle

SynFutures Orders API

Order list, calldata build, One Click send/cancel, and tx recording

SynFutures Portfolio API

User info, balances, and positions

SynFutures Stock API

Tokenized stock deposits and withdrawals

Open Collections 7

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

API Collection

OPEN COLLECTION

SynFutures RWA Trading Cash API

OPEN COLLECTION

SynFutures RWA Trading Cash Market Data API

OPEN COLLECTION

SynFutures RWA Trading Cash One Click API

OPEN COLLECTION

SynFutures RWA Trading Cash Orders API

OPEN COLLECTION

SynFutures RWA Trading Cash Portfolio API

OPEN COLLECTION

SynFutures RWA Trading Cash Stock API

OPEN COLLECTION

Scroll for all 7

Rate Limits 1

Documented rate limits and quota policies.

Synfutures Rate Limits

1 limits

RATE LIMITS

Security Posture 2

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

Synfutures Authentication

apiKey/hmac · 6 schemes

SECURITY

Synfutures Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access 1

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

Synfutures Agentic Access

43 operations · 22 acting · 1 human-in-the-loop

43 operations · 22 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

OpenAPI

OpenAPI

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

X-MCPServerCandidate

X-MCPServerCandidate

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 16
  pass: local-v1
aid: synfutures
name: SynFutures
description: SynFutures is an on-chain derivatives and real-world-asset (RWA) trading protocol that brings crypto perpetuals,
  tokenized stocks, and ETFs on-chain across Base, Ethereum, and Monad. For developers it exposes a RESTful RWA Trading API
  (market data, portfolio, order placement, cash and stock operations, and One Click delegated trading) secured with HMAC-SHA256
  signed, IP-whitelisted API keys, plus TypeScript SDKs (@synfutures/sdks-perp and oyster-sdk) and on-chain smart contracts
  for the Oyster (V3) protocol. Backed by Pantera Capital and Polychain.
url: https://raw.githubusercontent.com/api-evangelist/synfutures/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- pantera-capital
- polychain
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - rate-limits
  - security
  generated: '2026-09-03'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
image: https://www.synfutures.com/assets/trade_every_asset.png
tags:
- Company
- Crypto
- DeFi
- Trading
- Derivatives
- Real World Assets
- Blockchain
tags_raw:
- Company
- Crypto
- DeFi
- Trading
- Derivatives
- Real World Assets
- Blockchain
- API
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: synfutures:synfutures-cash-api
  name: SynFutures Cash API
  description: Cash (USD) deposits and withdrawals
  humanURL: https://docs.synfutures.com/rwa-trading-apis/readme
  baseURL: https://base-api.synfutures.com/rwa/trading
  tags:
  - Cash
  properties:
  - type: OpenAPI
    url: openapi/synfutures-cash-api-openapi.yml
  - type: Authentication
    url: authentication/synfutures-authentication.yml
- aid: synfutures:synfutures-market-data-api
  name: SynFutures Market Data API
  description: On-chain market config, symbols, prices, and corporate actions
  humanURL: https://docs.synfutures.com/rwa-trading-apis/readme
  baseURL: https://base-api.synfutures.com/rwa/trading
  tags:
  - Market Data
  properties:
  - type: OpenAPI
    url: openapi/synfutures-market-data-api-openapi.yml
  - type: Authentication
    url: authentication/synfutures-authentication.yml
- aid: synfutures:synfutures-one-click-api
  name: SynFutures One Click API
  description: One Click Trading (1CT) delegation lifecycle
  humanURL: https://docs.synfutures.com/rwa-trading-apis/readme
  baseURL: https://base-api.synfutures.com/rwa/trading
  tags:
  - One-Click
  tags_raw:
  - One Click
  properties:
  - type: OpenAPI
    url: openapi/synfutures-one-click-api-openapi.yml
  - type: Authentication
    url: authentication/synfutures-authentication.yml
- aid: synfutures:synfutures-orders-api
  name: SynFutures Orders API
  description: Order list, calldata build, One Click send/cancel, and tx recording
  humanURL: https://docs.synfutures.com/rwa-trading-apis/readme
  baseURL: https://base-api.synfutures.com/rwa/trading
  tags:
  - Order
  tags_raw:
  - Orders
  properties:
  - type: OpenAPI
    url: openapi/synfutures-orders-api-openapi.yml
  - type: Authentication
    url: authentication/synfutures-authentication.yml
- aid: synfutures:synfutures-portfolio-api
  name: SynFutures Portfolio API
  description: User info, balances, and positions
  humanURL: https://docs.synfutures.com/rwa-trading-apis/readme
  baseURL: https://base-api.synfutures.com/rwa/trading
  tags:
  - Portfolio
  properties:
  - type: OpenAPI
    url: openapi/synfutures-portfolio-api-openapi.yml
  - type: Authentication
    url: authentication/synfutures-authentication.yml
- aid: synfutures:synfutures-stock-api
  name: SynFutures Stock API
  description: Tokenized stock deposits and withdrawals
  humanURL: https://docs.synfutures.com/rwa-trading-apis/readme
  baseURL: https://base-api.synfutures.com/rwa/trading
  tags:
  - Stock
  properties:
  - type: OpenAPI
    url: openapi/synfutures-stock-api-openapi.yml
  - type: Authentication
    url: authentication/synfutures-authentication.yml
common:
- type: AgenticAccess
  url: agentic-access/synfutures-agentic-access.yml
- type: DomainSecurity
  url: security/synfutures-domain-security.yml
- type: Website
  url: https://www.synfutures.com/
- type: DeveloperPortal
  url: https://docs.synfutures.com/
- type: Documentation
  url: https://docs.synfutures.com/rwa-trading-apis/readme
- type: APIReference
  url: https://docs.synfutures.com/rwa-trading-apis/reference/endpoint-index
- type: GettingStarted
  url: https://docs.synfutures.com/rwa-trading-apis/guides/quickstart-first-trade
- type: GitHubOrganization
  url: https://github.com/SynFutures
- type: SignUp
  url: https://app.synfutures.com
- type: OpenAPI
  url: openapi/_original/synfutures-rwa-trading-openapi.yml
- type: Authentication
  url: authentication/synfutures-authentication.yml
- type: LLMsTxt
  url: llms/synfutures-llms.txt
- type: Packages
  url: packages/synfutures-packages.yml
- type: SDKs
  url: packages/synfutures-packages.yml
- type: Conventions
  url: conventions/synfutures-conventions.yml
- type: ErrorCatalog
  url: errors/synfutures-problem-types.yml
- type: RateLimits
  url: rate-limits/synfutures-rate-limits.yml
- type: Lifecycle
  url: lifecycle/synfutures-lifecycle.yml
- type: X-MCPServerCandidate
  url: mcp/synfutures-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: Conformance
  url: conformance/synfutures-conformance.yml
- type: DataModel
  url: data-model/synfutures-data-model.yml
- type: AgentSkill
  url: skills/_index.yml

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