# Tensor

**Canonical:** https://apis.io/providers/tensor/  
**Website:** https://tensor.trade  
**APIs profiled:** 9

Tensor is the Solana-native NFT marketplace and trading protocol founded by Tensor HQ and now stewarded by the Tensor Foundation. The platform exposes a public read REST API, a transaction-construction (TX) API that returns unsigned Solana transactions for list / buy / bid / pool flows, and a WebSocket subscription stream for realtime marketplace events. Five open-source Anchor programs — Marketplace, AMM v2, Whitelist, Escrow, and Fees — back the protocol and ship as `@tensor-foundation/*` JavaScript SDKs and `tensor-*` Rust crates. Tensor supports legacy NFTs, programmable NFTs (pNFT), and Bubblegum compressed NFTs (cNFT), and serves as the execution layer behind aggregators, wallets, sales bots, and AMM bonding-curve liquidity providers across the Solana ecosystem. Governance and ecosystem grants flow through the TNSR token and the Tensor DAO on Realms.

## Kin Score — 53.0 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 53.0).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 71.6 |
| Governance | 13.6 |
| Contract Governance | 13.6 |
| Operational Transparency | 36.8 |
| Developer Ergonomics | 61.9 |
| Commercial Clarity | 42.1 |
| Access Clarity | 42.1 |

Regulatory layer — **Securities & Market Data**: 38.3 (matched via weak_tags).

## Agent readiness — 33.9 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | documented |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | documented |
| Rate Limit Signal | documented |
| Event Surface Described | derived |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Free · Self-serve signup — onboarding: self-serve, pricing: free, trial: no (confidence: high).

## APIs (9)

- **Tensor WebSocket API** — Subscription-based realtime stream of Tensor marketplace events. Channels include `newTransaction` (every confirmed marketplace action), `ammOrderUpdate` / `ammOrderUpdateAll` (...
- **Tensor Bids API** — The Bids API from Tensor — 8 operation(s) for bids.
- **Tensor Collections API** — The Collections API from Tensor — 5 operation(s) for collections.
- **Tensor Escrow API** — The Escrow API from Tensor — 2 operation(s) for escrow.
- **Tensor Listings API** — The Listings API from Tensor — 6 operation(s) for listings.
- **Tensor NFTs API** — The NFTs API from Tensor — 3 operation(s) for nfts.
- **Tensor Pools API** — The Pools API from Tensor — 7 operation(s) for pools.
- **Tensor User API** — The User API from Tensor — 10 operation(s) for user.
- **Tensor Utility API** — The Utility API from Tensor — 6 operation(s) for utility.

## Agentic access (1)

- **Tensor Agentic Access** — 47 operations · 2 acting

## Security (2)

- **Tensor Authentication** — apiKey · 1 scheme
- **Tensor Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Tensor Plans Pricing**

## Tags

NFT, Marketplace, Solana, Blockchain, Web3, Cryptocurrency, Trading, DAO, DeFi, AMM

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