# B3

**Canonical:** https://apis.io/providers/b3/  
**Website:** https://b3.fun/  
**APIs profiled:** 3

B3 is an onchain economy platform founded by former Coinbase leaders, operating an EVM-equivalent Layer-3 gaming and payments chain settling to Base. B3 ships across three engines: Labs (products such as Basement/Bsmnt, HypeDuel, AnySpend, XCade and B3AR), B3OS (a credit-based, no-code automation platform for cross-chain workflows), and Holdings (strategic investments). For developers B3 exposes the B3OS Workflow API (workflows, triggers, actions, runs, connectors, outbound webhooks and an x402 payment surface), a free public B3 Data API (Blockscout + Thirdweb Insights indexed onchain data), a Profiles API for aggregated onchain identity, and Global Accounts SDKs. B3 was surfaced as a portfolio company of Pantera Capital and enriched into the API Evangelist network.

## Kin Score — 48.9 / 100 (developing)

Scored 2026-08-30 under rubric 0.17.2. Trend: flat (+0.0 from 48.9).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 54.0 |
| Governance | 4.5 |
| Contract Governance | 4.5 |
| Operational Transparency | 26.3 |
| Developer Ergonomics | 73.2 |
| Commercial Clarity | 38.2 |
| Access Clarity | 38.2 |

Regulatory layer — **Payments**: 39.1 (matched via tags).

## Agent readiness — 29.2 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | documented |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | partial |
| Rate Limit Signal | no |
| Event Surface Described | derived |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (72)

- **B3 Action API** — The Action API from B3 — 1 operation(s) for action.
- **B3 Actions API** — The Actions API from B3 — 2 operation(s) for actions.
- **B3 Admin API** — The Admin API from B3 — 19 operation(s) for admin.
- **B3 Ai API** — The Ai API from B3 — 3 operation(s) for ai.
- **B3 Api Keys API** — The Api Keys API from B3 — 2 operation(s) for api keys.
- **B3 Connector Types API** — The Connector Types API from B3 — 2 operation(s) for connector types.
- **B3 Connectors API** — The Connectors API from B3 — 2 operation(s) for connectors.
- **B3 Contract API** — The Contract API from B3 — 11 operation(s) for contract.
- **B3 Contracts API** — The Contracts API from B3 — 3 operation(s) for contracts.
- **B3 CU API** — The CU API from B3 — 4 operation(s) for cu.
- **B3 faucet API** — The faucet API from B3 — 1 operation(s) for faucet.
- **B3 Integrations API** — The Integrations API from B3 — 1 operation(s) for integrations.
- **B3 Internal API** — The Internal API from B3 — 1 operation(s) for internal.
- **B3 Invites API** — The Invites API from B3 — 1 operation(s) for invites.
- **B3 Logic Actions API** — The Logic Actions API from B3 — 1 operation(s) for logic actions.
- **B3 Metrics API** — The Metrics API from B3 — 4 operation(s) for metrics.
- **B3 onboarding API** — The onboarding API from B3 — 6 operation(s) for onboarding.
- **B3 Organization Storage API** — The Organization Storage API from B3 — 6 operation(s) for organization storage.
- **B3 Organizations API** — The Organizations API from B3 — 3 operation(s) for organizations.
- **B3 Orgs API** — The Orgs API from B3 — 6 operation(s) for orgs.
- **B3 Outbound Webhook API** — The Outbound Webhook API from B3 — 4 operation(s) for outbound webhook.
- **B3 Pipedream API** — The Pipedream API from B3 — 5 operation(s) for pipedream.
- **B3 Public API** — The Public API from B3 — 3 operation(s) for public.
- **B3 Runs API** — The Runs API from B3 — 5 operation(s) for runs.
- **B3 Search API** — The Search API from B3 — 2 operation(s) for search.
- **B3 seo API** — The seo API from B3 — 4 operation(s) for seo.
- **B3 Statistics API** — The Statistics API from B3 — 3 operation(s) for statistics.
- **B3 tags API** — The tags API from B3 — 2 operation(s) for tags.
- **B3 Telegram Bot API** — The Telegram Bot API from B3 — 3 operation(s) for telegram bot.
- **B3 Templates API** — The Templates API from B3 — 10 operation(s) for templates.
- **B3 Token Price Cexes API** — The Token Price Cexes API from B3 — 2 operation(s) for token price cexes.
- **B3 Triggers API** — The Triggers API from B3 — 2 operation(s) for triggers.
- **B3 wallets API** — The wallets API from B3 — 4 operation(s) for wallets.
- **B3 Webhook Events API** — The Webhook Events API from B3 — 2 operation(s) for webhook events.
- **B3 workflow-templates API** — The workflow-templates API from B3 — 2 operation(s) for workflow-templates.
- **B3 Workflows API** — The Workflows API from B3 — 22 operation(s) for workflows.
- **B3 X402 Endpoints API** — The X402 Endpoints API from B3 — 9 operation(s) for x402 endpoints.
- **B3 Activity API** — The activity API from B3 — 1 operation(s) for activity.
- **B3 Agent Runs API** — The agent-runs API from B3 — 4 operation(s) for agent-runs.
- **B3 App Gateway API** — The App Gateway API from B3 — 5 operation(s) for app gateway.
- …and 32 more, listed in full on the page.

## MCP servers (1)

- **B3 MCP Server**

## Agentic access (1)

- **B3 Agentic Access** — 182 operations · 82 acting

## Security (2)

- **B3 Authentication** — apiKey/custom · 4 schemes
- **B3 Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Tags

Company, Crypto, Blockchain, Web3, Workflow-Automation, Onchain Data, Gaming, Payments, Layer 3, Developer Tools

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/b3/). Scores are computed from the provider's own public artifacts under a published rubric.