Blackbird

Blackbird Labs is the membership network for restaurant lovers, founded by Eater and Resy co-founder Ben Leventhal. Its consumer app lets diners earn status, perks, and points at world-class restaurants and pay their check in FLY, Blackbird's loyalty token. Blackbird's developer platform is the Flynet API — read access to the dining network (restaurants, locations, check-ins, member identity, and memberships) plus FLY Payment Intents modeled on Stripe — backed by an OpenAPI spec, first-party TypeScript SDKs (@flynetdev/core and @flynetdev/react), two MCP servers, a published agent skill, and llms.txt. Flynet is a layer-3 network built on Coinbase's Base chain. Backed by a16z, dcvc, and multicoin-capital.

Blackbird publishes 10 APIs on the APIs.io network, including App API, Challenges API, Check-ins API, and 7 more. Tagged areas include Company, Restaurant, Loyalty, Payments, and Dining.

Blackbird’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, signup flow, authentication, and 24 more developer resources.

🌐 Visit website 📡 Source on GitHub

46.0/100 developing ▬ flat Agent 40/100 agent native saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs 1 MCP Servers

Company Restaurant Loyalty Payments Dining Membership Crypto Blockchain Web3

Kin Score

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

Composite quality — 46.0/100 · developing

Contract Quality 10.5 / 19

Developer Ergonomics 11.8 / 15

Access Clarity 2.0 / 15

Operational Transparency 1.5 / 10

Contract Governance 0.4 / 9

Discoverability 5.7 / 8

Regulatory Posture 6.3 / 15

Create-or-Update Ergonomics 2.8 / 10

Agent readiness — 40/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 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 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/blackbird: 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 10

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

Blackbird App API

The App API from Blackbird — 1 operation(s) for app.

Blackbird Challenges API

The Challenges API from Blackbird — 1 operation(s) for challenges.

Blackbird Check-ins API

Filtered visit records.

Blackbird Locations API

Physical venues and open hours.

Blackbird Memberships API

Per-(member, restaurant) loyalty records carrying check-in counts and tiers.

Blackbird Payments API

Payment Intents for FLY-funded payments.

Blackbird Restaurants API

Brand-level restaurant discovery.

Blackbird Rewards API

The Rewards API from Blackbird — 2 operation(s) for rewards.

Blackbird Specials API

The Specials API from Blackbird — 1 operation(s) for specials.

Blackbird Users API

The authenticated member — profile, status, wallets, tags, and check-in history. Subject resolved from the token.

Scroll for all 10

Open Collections 11

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

API Collection

OPEN COLLECTION

Flynet App API

OPEN COLLECTION

Flynet App Challenges API

OPEN COLLECTION

Flynet App Check-ins API

OPEN COLLECTION

Flynet App Locations API

OPEN COLLECTION

Flynet App Memberships API

OPEN COLLECTION

Flynet App Payments API

OPEN COLLECTION

Flynet App Restaurants API

OPEN COLLECTION

Flynet App Rewards API

OPEN COLLECTION

Flynet App Specials API

OPEN COLLECTION

Flynet App Users API

OPEN COLLECTION

Scroll for all 11

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Blackbird MCP Server

Flynet (Blackbird) ships two official MCP servers. The Docs MCP is a hosted, remote HTTP server (Mintlify-hosted, no credentials) that lets any MCP-aware agent search the live F...

MCP SERVER

Security Posture 2

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

Blackbird Authentication

apiKey/http · 2 schemes

SECURITY

Blackbird Domain Security

TLSv1.3 · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Blackbird Scopes

9 scopes

SCOPES

Agentic Access 1

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

Blackbird Agentic Access

25 operations · 5 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

SignUp

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer

AgentSkill

AgenticAccess

LLMsTxt

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conventions

Idempotency

ErrorCatalog

Lifecycle

DataModel

Conformance

Components

Scroll for all 7

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

OAuthScopes

OAuthScopes

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

HelpCenter

HelpCenter

Support

Support

ChangeLog

ChangeLog

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

About

About

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: blackbird
name: Blackbird
description: Blackbird Labs is the membership network for restaurant lovers, founded by Eater and Resy co-founder Ben Leventhal.
  Its consumer app lets diners earn status, perks, and points at world-class restaurants and pay their check in FLY, Blackbird's
  loyalty token. Blackbird's developer platform is the Flynet API — read access to the dining network (restaurants, locations,
  check-ins, member identity, and memberships) plus FLY Payment Intents modeled on Stripe — backed by an OpenAPI spec, first-party
  TypeScript SDKs (@flynetdev/core and @flynetdev/react), two MCP servers, a published agent skill, and llms.txt. Flynet is
  a layer-3 network built on Coinbase's Base chain. Backed by a16z, dcvc, and multicoin-capital.
url: https://raw.githubusercontent.com/api-evangelist/blackbird/refs/heads/main/apis.yml
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
  - scopes
  - security
  - sandbox
  generated: '2026-09-03'
  method: derived
image: https://www.blackbird.xyz/opengraph-image.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
- dcvc
- multicoin-capital
x-tier: enriched
x-tier-reason: developer-platform-found
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Restaurant
- Loyalty
- Payments
- Dining
- Membership
- Crypto
- Blockchain
- Web3
tags_raw:
- Company
- Restaurants
- Loyalty
- Payments
- Dining
- Membership
- Crypto
- Blockchain
- Web3
apis:
- aid: blackbird:blackbird-app-api
  name: Blackbird App API
  description: The App API from Blackbird — 1 operation(s) for app.
  humanURL: https://docs.flynet.org
  baseURL: https://api.blackbird.xyz/flynet/v1
  tags:
  - App
  properties:
  - type: OpenAPI
    url: openapi/blackbird-app-api-openapi.yml
- aid: blackbird:blackbird-challenges-api
  name: Blackbird Challenges API
  description: The Challenges API from Blackbird — 1 operation(s) for challenges.
  humanURL: https://docs.flynet.org
  baseURL: https://api.blackbird.xyz/flynet/v1
  tags:
  - Challenges
  properties:
  - type: OpenAPI
    url: openapi/blackbird-challenges-api-openapi.yml
- aid: blackbird:blackbird-check-ins-api
  name: Blackbird Check-ins API
  description: Filtered visit records.
  humanURL: https://docs.flynet.org
  baseURL: https://api.blackbird.xyz/flynet/v1
  tags:
  - Check-ins
  properties:
  - type: OpenAPI
    url: openapi/blackbird-check-ins-api-openapi.yml
- aid: blackbird:blackbird-locations-api
  name: Blackbird Locations API
  description: Physical venues and open hours.
  humanURL: https://docs.flynet.org
  baseURL: https://api.blackbird.xyz/flynet/v1
  tags:
  - Locations
  properties:
  - type: OpenAPI
    url: openapi/blackbird-locations-api-openapi.yml
- aid: blackbird:blackbird-memberships-api
  name: Blackbird Memberships API
  description: Per-(member, restaurant) loyalty records carrying check-in counts and tiers.
  humanURL: https://docs.flynet.org
  baseURL: https://api.blackbird.xyz/flynet/v1
  tags:
  - Memberships
  properties:
  - type: OpenAPI
    url: openapi/blackbird-memberships-api-openapi.yml
- aid: blackbird:blackbird-payments-api
  name: Blackbird Payments API
  description: Payment Intents for FLY-funded payments.
  humanURL: https://docs.flynet.org
  baseURL: https://api.blackbird.xyz/flynet/v1
  tags:
  - Payments
  properties:
  - type: OpenAPI
    url: openapi/blackbird-payments-api-openapi.yml
- aid: blackbird:blackbird-restaurants-api
  name: Blackbird Restaurants API
  description: Brand-level restaurant discovery.
  humanURL: https://docs.flynet.org
  baseURL: https://api.blackbird.xyz/flynet/v1
  tags:
  - Restaurant
  tags_raw:
  - Restaurants
  properties:
  - type: OpenAPI
    url: openapi/blackbird-restaurants-api-openapi.yml
- aid: blackbird:blackbird-rewards-api
  name: Blackbird Rewards API
  description: The Rewards API from Blackbird — 2 operation(s) for rewards.
  humanURL: https://docs.flynet.org
  baseURL: https://api.blackbird.xyz/flynet/v1
  tags:
  - Rewards
  properties:
  - type: OpenAPI
    url: openapi/blackbird-rewards-api-openapi.yml
- aid: blackbird:blackbird-specials-api
  name: Blackbird Specials API
  description: The Specials API from Blackbird — 1 operation(s) for specials.
  humanURL: https://docs.flynet.org
  baseURL: https://api.blackbird.xyz/flynet/v1
  tags:
  - Specials
  properties:
  - type: OpenAPI
    url: openapi/blackbird-specials-api-openapi.yml
- aid: blackbird:blackbird-users-api
  name: Blackbird Users API
  description: The authenticated member — profile, status, wallets, tags, and check-in history. Subject resolved from the
    token.
  humanURL: https://docs.flynet.org
  baseURL: https://api.blackbird.xyz/flynet/v1
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/blackbird-users-api-openapi.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: TermsOfService
  url: https://www.blackbird.xyz/terms
- type: PrivacyPolicy
  url: https://www.blackbird.xyz/privacy
- type: About
  url: https://www.blackbird.xyz/about
- type: HelpCenter
  url: https://www.blackbird.xyz/partnerhelp
- type: Overlay
  url: overlays/blackbird-flynet-overlay.yaml
- type: Website
  url: https://blackbird.xyz
- type: DeveloperPortal
  url: https://docs.flynet.org
- type: Documentation
  url: https://docs.flynet.org
- type: APIReference
  url: https://docs.flynet.org/api-reference/introduction
- type: GettingStarted
  url: https://docs.flynet.org/getting-started
- type: Support
  url: https://docs.flynet.org/resources/support
- type: Blog
  url: https://www.thesupersonic.blackbird.xyz
- type: SignUp
  url: https://docs.flynet.org/resources/request-access
- type: Authentication
  url: authentication/blackbird-authentication.yml
- type: OAuthScopes
  url: scopes/blackbird-scopes.yml
- type: Conventions
  url: conventions/blackbird-conventions.yml
- type: Idempotency
  url: conventions/blackbird-conventions.yml
- type: ErrorCatalog
  url: errors/blackbird-problem-types.yml
- type: Lifecycle
  url: lifecycle/blackbird-lifecycle.yml
- type: ChangeLog
  url: changelog/blackbird-changelog.yml
- type: DataModel
  url: data-model/blackbird-data-model.yml
- type: Conformance
  url: conformance/blackbird-conformance.yml
- type: Sandbox
  url: sandbox/blackbird-sandbox.yml
- type: Components
  url: components/blackbird-components.yml
- type: MCPServer
  url: mcp/blackbird-mcp.yml
- type: Packages
  url: packages/blackbird-packages.yml
- type: SDKs
  url: packages/blackbird-packages.yml
- type: AgentSkill
  url: skills/_index.yml
- type: AgenticAccess
  url: agentic-access/blackbird-agentic-access.yml
- type: LLMsTxt
  url: llms/blackbird-llms.txt
- type: DomainSecurity
  url: security/blackbird-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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