Blast

Blast is an Ethereum Layer 2 network (OP Stack-derived, post-Pacific Meridian upgrade) that pays native yield on bridged ETH and stablecoins via auto- rebasing tokens — roughly 4% on ETH (from Ethereum staking) and 5% on USDB (from T-Bill protocols) — and programmatically returns a share of net gas revenue to dApps. Mainnet runs at chain ID 81457 with public JSON-RPC at rpc.blast.io and a Sepolia testnet at chain ID 168587773 / sepolia.blast.io. Developer surfaces include Blastscan and Sepolia Blastscan explorers, the native bridge, USDB stablecoin, and the gas / yield smart contracts.

Blast publishes 9 API contracts indexed on the APIs.io network, including JSON-RPC API, and 8 more. Tagged areas include Blockchain, Layer 2, Ethereum, EVM, and Native Yield.

The Blast catalog on APIs.io includes 1 Spectral governance ruleset.

Blast’s developer surface includes documentation, getting-started guide, API reference, engineering blog, GitHub presence, status page, and 15 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

30.5/100 thin ▬ flat Agent 20/100 agent aware Heartbeat 15/100 dormant saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFree

1 published contract

Blockchain Layer 2 Ethereum EVMNative YieldRebasingOP Stack

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 30.5/100 · thin

Contract Quality 8.8 / 19

Developer Ergonomics 5.4 / 15

Access Clarity 0.8 / 15

Operational Transparency 2.1 / 10

Contract Governance 1.2 / 9

Discoverability 5.5 / 8

Regulatory Posture 1.8 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

9 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 5.3 — up to +18.9 composite points
Contract Quality scores 47.1 — up to +13.2 composite points
Developer Ergonomics scores 35.7 — up to +12.9 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/blast-network/apis.yml: open an issue on github.com/api-evangelist/blast-network to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Stablecoins and Tokenization (stablecoin issuers, tokenized assets)	covered	17.2 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 9

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

Blast Mainnet JSON-RPC

Public Ethereum-compatible JSON-RPC endpoint for Blast mainnet (chain ID 81457). Supports the standard eth_* method set used by web3 clients, wallets, and indexers.

Blast Sepolia Testnet JSON-RPC

Public JSON-RPC endpoint for the Blast Sepolia testnet (chain ID 168587773), used for application development, integration testing, and bridge testing before deploying to mainnet.

Blast Native Yield Contracts

Auto-rebasing yield mechanism for ETH and USDB on Blast. Contracts expose configuration calls to opt accounts into automatic, claimable, or void yield modes, used by every dApp ...

Blast Gas Revenue API

Programmatic interface for dApps to claim back a share of the net gas revenue generated by their contracts on Blast, configured per-contract via the Blast precompile.

USDB Native Stablecoin

USDB is Blast's native auto-rebasing stablecoin, redeemable 1:1 for DAI when bridged back to Ethereum. Backed by T-Bill protocols and integrated directly into the Blast bridge.

Blast Bridge

Canonical Ethereum-Blast bridge for ETH, USDB, and supported ERC-20 tokens. UI lives at bridge.blast.io and is backed by the OP Stack standard bridge contracts.

Blastscan Block Explorer

Etherscan-style block explorer for Blast mainnet — transactions, blocks, addresses, contracts, tokens, and Solidity source verification.

Blastscan Sepolia Testnet Explorer

Blastscan instance for the Blast Sepolia testnet, supporting transaction lookup and contract verification for testnet deployments.

Blast JSON-RPC API

Ethereum-compatible JSON-RPC methods exposed by the Blast node.

Scroll for all 9

Open Collections 2

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

Blast Network JSON-RPC API

OPEN COLLECTION

Blast Network JSON-RPC

OPEN COLLECTION

Blast API pricing

Not yet checked against Blast's own pricing page. Compiled by API Evangelist on 2026-05-22; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free freemium	Free

Plan details, limits and sources →

Rate limits

Free Tier Default: 10 requests per minute
Pro Tier Default: 120 requests per minute

Compiled by API Evangelist, not yet checked against Blast's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Blast Network Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Blast Network Rate Limits

2 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Blast

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Blast Network Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Blast API Rules

42 rules · 40 errors 1 warnings 1 info

SPECTRAL

Security Posture 2

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

Blast Network Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Blast Network Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

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

Blast Network Agentic Access

1 operation · 1 acting

1 operations · 1 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

Access & Security 2

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

RateLimits

RateLimits

Discord

Discord

Status

Status

Commercial 4

Pricing, plans, and the legal terms of use

Plans

FinOps

PrivacyPolicy

TermsOfService

Company 3

The organization behind the API

Website

Website

Blog

Blog

Twitter

Twitter

Other 3

Properties that don't map to a standard resource type

Bridge

Bridge

Explorer

Explorer

TestnetExplorer

TestnetExplorer

Source (apis.yml)

aid: blast-network
url: https://raw.githubusercontent.com/api-evangelist/blast-network/refs/heads/main/apis.yml
name: Blast
kind: company
description: Blast is an Ethereum Layer 2 network (OP Stack-derived, post-Pacific Meridian upgrade) that pays native yield
  on bridged ETH and stablecoins via auto- rebasing tokens — roughly 4% on ETH (from Ethereum staking) and 5% on USDB (from
  T-Bill protocols) — and programmatically returns a share of net gas revenue to dApps. Mainnet runs at chain ID 81457 with
  public JSON-RPC at rpc.blast.io and a Sepolia testnet at chain ID 168587773 / sepolia.blast.io. Developer surfaces include
  Blastscan and Sepolia Blastscan explorers, the native bridge, USDB stablecoin, and the gas / yield smart contracts.
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: free
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Free
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/blast-network.png
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-20
tags:
- Blockchain
- Layer 2
- Ethereum
- EVM
- Native Yield
- Rebasing
- OP Stack
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.23'
apis:
- aid: blast-network:mainnet-rpc
  name: Blast Mainnet JSON-RPC
  description: Public Ethereum-compatible JSON-RPC endpoint for Blast mainnet (chain ID 81457). Supports the standard eth_*
    method set used by web3 clients, wallets, and indexers.
  humanURL: https://docs.blast.io/building/network-information
  baseURL: https://rpc.blast.io
  tags:
  - JSON-RPC
  - Mainnet
  - EVM
  properties:
  - type: Documentation
    url: https://docs.blast.io/building/network-information
- aid: blast-network:sepolia-rpc
  name: Blast Sepolia Testnet JSON-RPC
  description: Public JSON-RPC endpoint for the Blast Sepolia testnet (chain ID 168587773), used for application development,
    integration testing, and bridge testing before deploying to mainnet.
  humanURL: https://docs.blast.io/building/network-information
  baseURL: https://sepolia.blast.io
  tags:
  - JSON-RPC
  - Testnet
  - Sepolia
  properties:
  - type: Documentation
    url: https://docs.blast.io/building/network-information
- aid: blast-network:native-yield
  name: Blast Native Yield Contracts
  description: Auto-rebasing yield mechanism for ETH and USDB on Blast. Contracts expose configuration calls to opt accounts
    into automatic, claimable, or void yield modes, used by every dApp that handles user balances.
  humanURL: https://docs.blast.io/building/guides/eth-yield
  baseURL: https://docs.blast.io/building/guides/eth-yield
  tags:
  - Yield
  - Rebasing
  - ETH
  - USDB
  properties:
  - type: Documentation
    url: https://docs.blast.io/building/guides/eth-yield
- aid: blast-network:gas-revenue
  name: Blast Gas Revenue API
  description: Programmatic interface for dApps to claim back a share of the net gas revenue generated by their contracts
    on Blast, configured per-contract via the Blast precompile.
  humanURL: https://docs.blast.io/building/guides/gas-fees
  baseURL: https://docs.blast.io/building/guides/gas-fees
  tags:
  - Gas
  - Revenue Sharing
  - Smart Contracts
  properties:
  - type: Documentation
    url: https://docs.blast.io/building/guides/gas-fees
- aid: blast-network:usdb-stablecoin
  name: USDB Native Stablecoin
  description: USDB is Blast's native auto-rebasing stablecoin, redeemable 1:1 for DAI when bridged back to Ethereum. Backed
    by T-Bill protocols and integrated directly into the Blast bridge.
  humanURL: https://docs.blast.io/building/guides/usdb-yield
  baseURL: https://docs.blast.io/building/guides/usdb-yield
  tags:
  - USDB
  - Stablecoins
  - Yield
  tags_raw:
  - USDB
  - Stablecoin
  - Yield
  properties:
  - type: Documentation
    url: https://docs.blast.io/building/guides/usdb-yield
- aid: blast-network:bridge
  name: Blast Bridge
  description: Canonical Ethereum-Blast bridge for ETH, USDB, and supported ERC-20 tokens. UI lives at bridge.blast.io and
    is backed by the OP Stack standard bridge contracts.
  humanURL: https://docs.blast.io/building/bridges
  baseURL: https://bridge.blast.io
  tags:
  - Bridge
  - Ethereum
  - L1
  properties:
  - type: Documentation
    url: https://docs.blast.io/building/bridges
- aid: blast-network:blastscan-explorer
  name: Blastscan Block Explorer
  description: Etherscan-style block explorer for Blast mainnet — transactions, blocks, addresses, contracts, tokens, and
    Solidity source verification.
  humanURL: https://blastscan.io
  baseURL: https://blastscan.io
  tags:
  - Explorer
  - Blastscan
  - Mainnet
  properties:
  - type: Documentation
    url: https://blastscan.io
- aid: blast-network:blastscan-sepolia-explorer
  name: Blastscan Sepolia Testnet Explorer
  description: Blastscan instance for the Blast Sepolia testnet, supporting transaction lookup and contract verification for
    testnet deployments.
  humanURL: https://sepolia.blastscan.io
  baseURL: https://sepolia.blastscan.io
  tags:
  - Explorer
  - Sepolia
  - Testnet
  properties:
  - type: Documentation
    url: https://sepolia.blastscan.io
- aid: blast-network:blast-network-json-rpc-api
  name: Blast JSON-RPC API
  description: Ethereum-compatible JSON-RPC methods exposed by the Blast node.
  humanURL: https://docs.blast.io/building/network-information
  baseURL: https://rpc.blast.io
  tags:
  - JSON-RPC
  properties:
  - type: OpenAPI
    url: openapi/blast-network-json-rpc-api-openapi.yml
common:
- type: Plans
  url: plans/blast-network-plans-pricing.yml
- type: RateLimits
  url: rate-limits/blast-network-rate-limits.yml
- type: FinOps
  url: finops/blast-network-finops.yml
- type: AgenticAccess
  url: agentic-access/blast-network-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/blast-network-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/blast-network-domain-security.yml
- type: Website
  url: https://blast.io
- type: Documentation
  url: https://docs.blast.io
- type: GettingStarted
  url: https://docs.blast.io/building/network-information
- type: APIReference
  url: https://docs.blast.io/building/network-information
- type: Bridge
  url: https://bridge.blast.io
- type: Explorer
  url: https://blastscan.io
- type: TestnetExplorer
  url: https://sepolia.blastscan.io
- type: Blog
  url: https://blog.blast.io
- type: GitHub
  url: https://github.com/blast-io
- type: Twitter
  url: https://x.com/Blast_L2
- type: Discord
  url: https://discord.gg/blast
- type: Status
  url: https://status.blast.io
- type: PrivacyPolicy
  url: https://blast.io/privacy
- type: TermsOfService
  url: https://blast.io/terms
- type: LlmsText
  url: https://docs.blast.io/llms.txt
integrations:
- name: Ethereum
- name: OP Stack
- name: QuickNode
- name: Alchemy
- name: Ankr
- name: BlastAPI
- name: dRPC
- name: LayerZero
- name: Wormhole
- name: Chainlink
- name: Pyth
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Blast API — frequently asked questions

Does Blast have an API?

Yes. APIs.io lists 9 APIs from Blast, including Blast Mainnet JSON-RPC, Blast Sepolia Testnet JSON-RPC and Blast Native Yield Contracts, and 6 more.

Is there an OpenAPI specification for the Blast API?

Yes. APIs.io indexes 1 OpenAPI specification for Blast, each linked for download from this page.

How much does the Blast API cost?

APIs.io lists 1 pricing plan for Blast, with each plan's price, limits and inclusions under Pricing on this page.

Is the Blast API ready for AI agents?

Blast has a Kin Score of 30.5 out of 100 (thin) and an Agent Readiness score of 20.4 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

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https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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