# Xpansiv

**Canonical:** https://apis.io/providers/xpansiv/  
**Website:** https://www.xpansiv.com/  
**APIs profiled:** 11

Xpansiv is market infrastructure for global environmental and energy commodities — carbon credits, renewable energy certificates, water, low-carbon fuels and recycled materials. It operates CBL, the largest spot exchange for environmental commodities, the Evolution Markets and OTX brokerage and execution desks, the H2OX water market and the ACE and JSEV carbon platforms, alongside the environmental registries it acquired with APX in 2022 — NAR (North American Renewables Registry), TIGR, I-REC, I-TRACK-G and the Xpansiv-powered digital fuels registries. Its public developer portal at developer.xpansiv.com publishes eleven OpenAPI descriptions across Xpansiv Connect (environmental commodity portfolio, retirement and transfer), Xpansiv Managed Solutions, the NAR and TIGR registry client APIs, the Optimal Outcomes suite and the APX Power Markets file registry, plus a FIX 4.4 marketplace protocol specification, Xpansiv Data market-data APIs and a first-party Python SDK.

## Kin Score — 51.8 / 100 (developing)

Scored 2026-09-04 under rubric 0.18.3.

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 56.8 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 78.0 |
| Commercial Clarity | 34.2 |
| Access Clarity | 34.2 |

Regulatory layer — **Energy & Utilities**: 56.8 (matched via tags).

## Agent readiness — 49.7 (agent-ready)

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

## APIs (8)

- **Xpansiv Connect API** — Xpansiv Connect exposes environmental commodity account, portfolio, exchange, forward deal, issuance, project, reference data, report, retirement, split lot and transfer operati...
- **Xpansiv Managed Solutions API** — Access facilities, transactions, meter readings, clean transportation, market, qualified reporting entity, building type, remote data collector and utility data from an Xpansiv ...
- **Xpansiv Data API** — Real-time, end-of-day and historical transaction-based market data for environmental and energy commodities, sourced from CBL and global intermediaries including Evolution Marke...
- **NAR Registry Client API** — The North American Renewables Registry client API for retrieving and transacting NAR monthly vintage renewable energy certificates — account, ledger, subaccount and system opera...
- **TIGRS Registry Client API** — The Tradable Instrument for Global Renewables (TIGR) registry client API for retrieving and retiring TIGR certificates — corporate entity, ledger, subaccount and system operatio...
- **Xpansiv Optimal Outcomes APIs** — The Optimal Outcomes suite — a system health API, a file registry, a meter-data telemetry API, a reporting service, a resource API and a transfer position external API for viewi...
- **APX Power Markets File Registry API** — The APX MarketSuite file registry and reporting API used to submit and retrieve ISO scheduling files for CAISO, ERCOT, PJM, SPP, MISO, ISONE and NYISO, alongside the XML/XSD sch...
- **Xpansiv Marketplace FIX API** — The Xpansiv Marketplace Server API for retrieving real-time market data and executing and managing orders on CBL, published as rules of engagement against the FIX 4.4 specificat...

## MCP servers (1)

- **Xpansiv Developer Portal MCP Server**

## Security (2)

- **Xpansiv Authentication** — http (bearer)/http (basic)/apiKey · 3 schemes
- **Xpansiv Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Xpansiv Plans Pricing**

## Tags

Company, Environmental Commodities, Carbon Markets, Renewable Energy Certificates, Registries, Market Data, Trading, Energy, Sustainability, Climate

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