Tweed

Tweed is an Accel-backed embedded-crypto platform offering Wallet-as-a-Service and NFT/token checkout APIs. Platforms embed self-custodial wallets (social login recovery, EIP-1193 EVM provider) and sell fungible and non-fungible tokens to buyers paying by card, Apple Pay, or Google Pay, with fiat, native, or stablecoin settlement across 12+ chains including Ethereum, Polygon, Base, Solana, and Tezos. A REST API (V2) manages contracts, items, payouts, checkouts, and HMAC-signed webhooks; note the marketing site and dashboard host were unreachable as of July 2026 while the docs, API, and npm SDKs remain live.

Tweed publishes 11 APIs on the APIs.io network, including assets API, audit-event-mappings API, auth API, and 8 more. Tagged areas include Company, Payments, Crypto, Wallets, and NFT.

The Tweed catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Tweed’s developer surface includes documentation, API reference, getting-started guide, pricing, authentication, sandbox, and 16 more developer resources.

🌐 Visit website 📡 Source on GitHub

37.9/100 thin ▬ flat Agent 21/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs

Company Payments Crypto Wallets NFT Blockchain Web3 Checkout

Kin Score

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

Composite quality — 37.9/100 · thin

Contract Quality 9.2 / 19

Developer Ergonomics 9.9 / 15

Access Clarity 2.8 / 15

Operational Transparency 0.8 / 10

Contract Governance 0.4 / 9

Discoverability 5.7 / 8

Regulatory Posture 5.2 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 21/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 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 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 Payments 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/tweed: 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 12

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

Tweed API (V1)

Legacy marketplace/collections API — obtain a JWT with your API key and secret, then manage NFT collections and in-platform tokens for token checkout.

Tweed assets API

The assets API from Tweed — 5 operation(s) for assets.

Tweed audit-event-mappings API

The audit-event-mappings API from Tweed — 1 operation(s) for audit-event-mappings.

Tweed auth API

The auth API from Tweed — 3 operation(s) for auth.

Tweed blockchains API

The blockchains API from Tweed — 4 operation(s) for blockchains.

Tweed checkout API

The checkout API from Tweed — 4 operation(s) for checkout.

Tweed contracts API

The contracts API from Tweed — 5 operation(s) for contracts.

Tweed items API

The items API from Tweed — 5 operation(s) for items.

Tweed payouts API

The payouts API from Tweed — 4 operation(s) for payouts.

Tweed platform-webhooks API

The platform-webhooks API from Tweed — 3 operation(s) for platform-webhooks.

Tweed Rate API

The Rate API from Tweed — 1 operation(s) for rate.

Tweed tickets API

The tickets API from Tweed — 1 operation(s) for tickets.

Scroll for all 12

Open Collections 12

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

API Collection

OPEN COLLECTION

Tweed assets API

OPEN COLLECTION

Tweed assets audit-event-mappings API

OPEN COLLECTION

Tweed assets auth API

OPEN COLLECTION

Tweed assets blockchains API

OPEN COLLECTION

Tweed assets checkout API

OPEN COLLECTION

Tweed assets contracts API

OPEN COLLECTION

Tweed assets items API

OPEN COLLECTION

Tweed assets payouts API

OPEN COLLECTION

Tweed assets platform-webhooks API

OPEN COLLECTION

Tweed assets Rate API

OPEN COLLECTION

Tweed assets tickets API

OPEN COLLECTION

Scroll for all 12

Event Specifications 1

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

Tweed Webhooks

ASYNCAPI

Security Posture 2

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

Tweed Authentication

http · 2 schemes

SECURITY

Tweed Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Sandbox

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conformance

Lifecycle

Webhooks

Conventions

Components

DataModel

Build 2

SDKs, sample code, and the tooling you integrate with

Packages

Packages

SDKs

SDKs

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Compliance

Compliance

Commercial 1

Pricing, plans, and the legal terms of use

Pricing

Pricing

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: tweed
name: Tweed
description: Tweed is an Accel-backed embedded-crypto platform offering Wallet-as-a-Service and NFT/token checkout APIs. Platforms
  embed self-custodial wallets (social login recovery, EIP-1193 EVM provider) and sell fungible and non-fungible tokens to
  buyers paying by card, Apple Pay, or Google Pay, with fiat, native, or stablecoin settlement across 12+ chains including
  Ethereum, Polygon, Base, Solana, and Tezos. A REST API (V2) manages contracts, items, payouts, checkouts, and HMAC-signed
  webhooks; note the marketing site and dashboard host were unreachable as of July 2026 while the docs, API, and npm SDKs
  remain live.
url: https://raw.githubusercontent.com/api-evangelist/tweed/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- accel
x-tier: stub
x-tier-reason: portfolio-lead
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: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  - sandbox
  generated: '2026-09-03'
  method: derived
specificationVersion: '0.23'
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 19
  pass: local-v1
created: '2026-07-17'
modified: '2026-07-21'
image: https://2034179314-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FgQyCg5IN7Cv6AnUUpGl2%2Ficon%2F7r4C3KWx4NfmxABWz0oa%2FIcon-Square_Black-4x.jpeg?alt=media&token=55a8df5f-9429-454e-b864-52cb0bea5e25
tags:
- Company
- Payments
- Crypto
- Wallets
- NFT
- Blockchain
- Web3
- Checkout
apis:
- name: Tweed API (V1)
  description: Legacy marketplace/collections API — obtain a JWT with your API key and secret, then manage NFT collections
    and in-platform tokens for token checkout.
  humanURL: https://docs.paytweed.com/developer-tools/api/api-v1
  baseURL: https://api-console.paytweed.com
  tags:
  - Payments
  - NFT
  properties:
  - type: Documentation
    url: https://docs.paytweed.com/developer-tools/api/api-v1
- aid: tweed:tweed-assets-api
  name: Tweed assets API
  description: The assets API from Tweed — 5 operation(s) for assets.
  humanURL: https://docs.paytweed.com/developer-tools/api/api-v2
  baseURL: https://api-v2.prod.paytweed.com
  tags:
  - Assets
  tags_raw:
  - assets
  properties:
  - type: OpenAPI
    url: openapi/tweed-assets-api-openapi.yml
  - type: Documentation
    url: https://docs.paytweed.com/developer-tools/api/api-v2
  - type: APIReference
    url: https://docs.paytweed.com/developer-tools/api/api-v2/api-reference
- aid: tweed:tweed-audit-event-mappings-api
  name: Tweed audit-event-mappings API
  description: The audit-event-mappings API from Tweed — 1 operation(s) for audit-event-mappings.
  humanURL: https://docs.paytweed.com/developer-tools/api/api-v2
  baseURL: https://api-v2.prod.paytweed.com
  tags:
  - audit-event-mappings
  properties:
  - type: OpenAPI
    url: openapi/tweed-audit-event-mappings-api-openapi.yml
  - type: Documentation
    url: https://docs.paytweed.com/developer-tools/api/api-v2
  - type: APIReference
    url: https://docs.paytweed.com/developer-tools/api/api-v2/api-reference
- aid: tweed:tweed-auth-api
  name: Tweed auth API
  description: The auth API from Tweed — 3 operation(s) for auth.
  humanURL: https://docs.paytweed.com/developer-tools/api/api-v2
  baseURL: https://api-v2.prod.paytweed.com
  tags:
  - Authentication
  tags_raw:
  - auth
  properties:
  - type: OpenAPI
    url: openapi/tweed-auth-api-openapi.yml
  - type: Documentation
    url: https://docs.paytweed.com/developer-tools/api/api-v2
  - type: APIReference
    url: https://docs.paytweed.com/developer-tools/api/api-v2/api-reference
- aid: tweed:tweed-blockchains-api
  name: Tweed blockchains API
  description: The blockchains API from Tweed — 4 operation(s) for blockchains.
  humanURL: https://docs.paytweed.com/developer-tools/api/api-v2
  baseURL: https://api-v2.prod.paytweed.com
  tags:
  - Blockchains
  tags_raw:
  - blockchains
  properties:
  - type: OpenAPI
    url: openapi/tweed-blockchains-api-openapi.yml
  - type: Documentation
    url: https://docs.paytweed.com/developer-tools/api/api-v2
  - type: APIReference
    url: https://docs.paytweed.com/developer-tools/api/api-v2/api-reference
- aid: tweed:tweed-checkout-api
  name: Tweed checkout API
  description: The checkout API from Tweed — 4 operation(s) for checkout.
  humanURL: https://docs.paytweed.com/developer-tools/api/api-v2
  baseURL: https://api-v2.prod.paytweed.com
  tags:
  - Checkout
  tags_raw:
  - checkout
  properties:
  - type: OpenAPI
    url: openapi/tweed-checkout-api-openapi.yml
  - type: Documentation
    url: https://docs.paytweed.com/developer-tools/api/api-v2
  - type: APIReference
    url: https://docs.paytweed.com/developer-tools/api/api-v2/api-reference
- aid: tweed:tweed-contracts-api
  name: Tweed contracts API
  description: The contracts API from Tweed — 5 operation(s) for contracts.
  humanURL: https://docs.paytweed.com/developer-tools/api/api-v2
  baseURL: https://api-v2.prod.paytweed.com
  tags:
  - Contracts
  tags_raw:
  - contracts
  properties:
  - type: OpenAPI
    url: openapi/tweed-contracts-api-openapi.yml
  - type: Documentation
    url: https://docs.paytweed.com/developer-tools/api/api-v2
  - type: APIReference
    url: https://docs.paytweed.com/developer-tools/api/api-v2/api-reference
- aid: tweed:tweed-items-api
  name: Tweed items API
  description: The items API from Tweed — 5 operation(s) for items.
  humanURL: https://docs.paytweed.com/developer-tools/api/api-v2
  baseURL: https://api-v2.prod.paytweed.com
  tags:
  - Item
  tags_raw:
  - items
  properties:
  - type: OpenAPI
    url: openapi/tweed-items-api-openapi.yml
  - type: Documentation
    url: https://docs.paytweed.com/developer-tools/api/api-v2
  - type: APIReference
    url: https://docs.paytweed.com/developer-tools/api/api-v2/api-reference
- aid: tweed:tweed-payouts-api
  name: Tweed payouts API
  description: The payouts API from Tweed — 4 operation(s) for payouts.
  humanURL: https://docs.paytweed.com/developer-tools/api/api-v2
  baseURL: https://api-v2.prod.paytweed.com
  tags:
  - Payouts
  tags_raw:
  - payouts
  properties:
  - type: OpenAPI
    url: openapi/tweed-payouts-api-openapi.yml
  - type: Documentation
    url: https://docs.paytweed.com/developer-tools/api/api-v2
  - type: APIReference
    url: https://docs.paytweed.com/developer-tools/api/api-v2/api-reference
- aid: tweed:tweed-platform-webhooks-api
  name: Tweed platform-webhooks API
  description: The platform-webhooks API from Tweed — 3 operation(s) for platform-webhooks.
  humanURL: https://docs.paytweed.com/developer-tools/api/api-v2
  baseURL: https://api-v2.prod.paytweed.com
  tags:
  - platform-webhooks
  properties:
  - type: OpenAPI
    url: openapi/tweed-platform-webhooks-api-openapi.yml
  - type: Documentation
    url: https://docs.paytweed.com/developer-tools/api/api-v2
  - type: APIReference
    url: https://docs.paytweed.com/developer-tools/api/api-v2/api-reference
- aid: tweed:tweed-rate-api
  name: Tweed Rate API
  description: The Rate API from Tweed — 1 operation(s) for rate.
  humanURL: https://docs.paytweed.com/developer-tools/api/api-v2
  baseURL: https://api-v2.prod.paytweed.com
  tags:
  - Rate
  properties:
  - type: OpenAPI
    url: openapi/tweed-rate-api-openapi.yml
  - type: Documentation
    url: https://docs.paytweed.com/developer-tools/api/api-v2
  - type: APIReference
    url: https://docs.paytweed.com/developer-tools/api/api-v2/api-reference
- aid: tweed:tweed-tickets-api
  name: Tweed tickets API
  description: The tickets API from Tweed — 1 operation(s) for tickets.
  humanURL: https://docs.paytweed.com/developer-tools/api/api-v2
  baseURL: https://api-v2.prod.paytweed.com
  tags:
  - Tickets
  tags_raw:
  - tickets
  properties:
  - type: OpenAPI
    url: openapi/tweed-tickets-api-openapi.yml
  - type: Documentation
    url: https://docs.paytweed.com/developer-tools/api/api-v2
  - type: APIReference
    url: https://docs.paytweed.com/developer-tools/api/api-v2/api-reference
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Overlay
  url: overlays/tweed-api-v2-overlay.yaml
- type: Website
  url: https://www.paytweed.com/
- type: DeveloperPortal
  url: https://docs.paytweed.com/
- type: Documentation
  url: https://docs.paytweed.com/
- type: APIReference
  url: https://docs.paytweed.com/developer-tools/api/api-v2/api-reference
- type: GettingStarted
  url: https://docs.paytweed.com/getting-started/embedded-wallets-or-waas
- type: Pricing
  url: https://docs.paytweed.com/developer-tools/pricing
- type: Authentication
  url: authentication/tweed-authentication.yml
- type: DomainSecurity
  url: security/tweed-domain-security.yml
- type: Packages
  url: packages/tweed-packages.yml
- type: SDKs
  url: packages/tweed-packages.yml
- type: X-MCPServerCandidate
  url: mcp/tweed-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: LLMsTxt
  url: llms/tweed-llms.txt
- type: Conformance
  url: conformance/tweed-conformance.yml
- type: Compliance
  url: https://docs.paytweed.com/getting-started/token-checkout-or-payments/legacy-token-checkout/features/aml-and-kyc-policy-overview
- type: Lifecycle
  url: lifecycle/tweed-lifecycle.yml
- type: Webhooks
  url: asyncapi/tweed-webhooks.yml
- type: Sandbox
  url: sandbox/tweed-sandbox.yml
- type: Conventions
  url: conventions/tweed-conventions.yml
- type: Components
  url: components/tweed-components.yml
- type: DataModel
  url: data-model/tweed-data-model.yml
- type: AgentSkill
  url: skills/_index.yml

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