Blocknative

Blocknative provides real‑time blockchain transaction monitoring and gas fee prediction APIs. Founded in 2018, the company powers developers with mempool data, L2 decoding, and wallet onboarding tools, enabling more efficient and transparent blockchain operations. Their platform supports multiple EVM‑compatible chains, offering developers accurate gas estimates, transaction status updates, and analytics to improve user experience and reduce costs.

Blocknative is profiled on the APIs.io network. Tagged areas include Company, Blockchain, GasFees, and Monitoring.

Blocknative’s developer surface includes documentation, engineering blog, pricing, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub

13.0/100 emerging Agent 0/100 human only Full breakdown ↓
scored 2026-10-04 · rubric v0.23.0

0 APIs

Company BlockchainGasFeesMonitoring

Kin Score

Kin Score How this is scored →
scored 2026-10-04 · rubric v0.23.0

Composite quality — 13.0/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 2.0 / 17

Access Clarity 5.4 / 17

Operational Transparency 0.6 / 11

Contract Governance 0.0 / 10

Discoverability 3.3 / 9

Regulatory Posture 2.1 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 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 0 / 7

Rate-Limit Signaling 0 / 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

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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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 github.com/api-evangelist/blocknative: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Security Posture 1

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

Blocknative Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Pricing

Pricing

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: blocknative
name: Blocknative
image: https://www.blocknative.com/hubfs/blocknative-deloitte%201%20(1)%201.png
description: Blocknative provides real‑time blockchain transaction monitoring and gas fee prediction APIs. Founded in 2018,
  the company powers developers with mempool data, L2 decoding, and wallet onboarding tools, enabling more efficient and transparent
  blockchain operations. Their platform supports multiple EVM‑compatible chains, offering developers accurate gas estimates,
  transaction status updates, and analytics to improve user experience and reduce costs.
url: https://raw.githubusercontent.com/api-evangelist/blocknative/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: profiled
x-tier-reason: enrichment pass 2026-09-29 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-09-29'
modified: '2026-09-29'
tags:
- Company
- Blockchain
- GasFees
- Monitoring
tags_raw:
- Company
- Blockchain
- API
- GasFees
- Monitoring
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Hosts
  url: hosts/blocknative-hosts.yml
- type: Vendors
  url: vendors/blocknative-vendors.yml
- type: TermsOfService
  url: https://www.blocknative.com/terms-conditions
- type: PrivacyPolicy
  url: https://www.blocknative.com/privacy-policy
- type: GitHubOrganization
  url: https://github.com/blocknative
- type: DomainSecurity
  url: security/blocknative-domain-security.yml
- type: Website
  url: https://www.blocknative.com/
- type: Documentation
  url: https://docs.blocknative.com/
- type: Blog
  url: https://www.blocknative.com/blog
- type: Pricing
  url: https://www.blocknative.com/pricing
apis: []
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: No OpenAPI, AsyncAPI, GraphQL, or other machine‑readable contract was found despite probing API and docs hosts.
  evidence:
  - url: https://api.blocknative.com/openapi.json
    status: error
  checked: '2026-09-29'
x-enrichment:
  date: '2026-09-29'
  status: enriched
  artifacts_added: 6
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

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