# celestia

**Canonical:** https://apis.io/providers/celestia/  
**Website:** https://celestia.org  
**APIs profiled:** 10

Celestia is the first production modular data availability blockchain. It separates consensus and data availability from execution and settlement, letting rollups, sovereign chains, and other execution layers post their transaction data as blobs to Celestia under namespaces while running their own state machines. Light nodes use Data Availability Sampling and Namespaced Merkle Trees to verify availability without downloading full blocks, and the Blobstream / Blobstream X bridge attests Celestia data commitments on Ethereum and other EVM chains. The reference stack — celestia-app (consensus, Cosmos SDK + CometBFT) and celestia-node (DA bridge/full/ light nodes) — exposes a JSON-RPC API with nine modules (blob, header, share, state, das, fraud, p2p, node, da, blobstream), plus a modular DA interface used by Rollkit, Optimism Alt-DA, Arbitrum Nitro DAS, and other rollup frameworks.

## Kin Score — 36.0 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 36.0).

| Facet | Score |
|---|---|
| Discoverability | 55.6 |
| Contract Quality | 60.8 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 5.3 |
| Developer Ergonomics | 66.7 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

## Agent readiness — 29.1 (agent-aware)

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

## Access

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

## APIs (10)

- **Celestia Node Blob API** — JSON-RPC methods in the blob module of celestia-node. Submit blobs to one or more namespaces with blob.Submit, retrieve them by height with blob.Get and blob.GetAll, generate in...
- **Celestia Node Header API** — JSON-RPC methods in the header module of celestia-node. Query ExtendedHeaders with header.LocalHead, header.NetworkHead, header.GetByHeight, header.GetByHash, and header.GetRang...
- **Celestia Node DA API** — JSON-RPC methods in the da module of celestia-node implementing the modular Data Availability interface used by Rollkit, Optimism Alt-DA, Arbitrum Nitro DAS, and other rollup fr...
- **Celestia Node Share API** — JSON-RPC methods in the share module of celestia-node. Provides direct access to Celestia's share-level data, the extended data square (EDS), namespaced shares, and share proofs...
- **Celestia Node State API** — JSON-RPC methods in the state module of celestia-node. Exposes state-level operations including account balances, transfers, delegations, and most importantly state.SubmitPayFor...
- **Celestia Node DAS API** — JSON-RPC methods in the das module of celestia-node. Operational introspection over the Data Availability Sampling subsystem that light nodes run to probabilistically verify blo...
- **Celestia Node Fraud API** — JSON-RPC methods in the fraud module of celestia-node. Exposes fraud proof retrieval and subscription for the BadEncoding fraud proof type used to slash bridge nodes that propag...
- **Celestia Node P2P API** — JSON-RPC methods in the p2p module of celestia-node. libp2p-level introspection and control over the Celestia DA network including peer info, NAT status, connection management, ...
- **Celestia Node Admin API** — JSON-RPC methods in the node module of celestia-node. Provides administrative introspection over the running node including node.Info, node.Ready, node.LogLevelSet, and the auth...
- **Celestia Node Blobstream API** — JSON-RPC methods in the blobstream module of celestia-node. Generates inclusion proofs against Blobstream data commitments so EVM chains can verify, via the Blobstream(X) bridge...

## Agentic access (1)

- **Celestia Agentic Access** — 10 operations · 10 acting

## Security (2)

- **Celestia Authentication** — http · 1 scheme
- **Celestia Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

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