Sender

Sender (Sender Wallet, by Sender Labs / SENDER TECH LIMITED) is a self-custody multi-chain Web3 wallet for NEAR, Ethereum and all EVM-compatible chains (Polygon, BNB Chain, Arbitrum, Optimism, Avalanche, Scroll, zkSync Era, TON and 20+ networks), shipping as a Chrome/Brave/Edge browser extension and iOS and Android apps. For developers, Sender exposes an injected browser-provider API: dApps detect the wallet on window.sender.near / window.sender.ethereum (with legacy window.near support), request sign-in / account access, and sign and broadcast transactions. The Ethereum provider follows EIP-1193 and EIP-1102; NEAR exposes requestSignIn, signAndSendTransaction and request. The wallet is audited by SlowMist and runs a bug bounty. Surfaced as a portfolio company of Pantera Capital.

Sender is profiled on the APIs.io network. Tagged areas include Company, Crypto, Wallets, Web3, and Blockchain.

Sender’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, authentication, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub
20.3/100 emerging ▬ flat Agent 5/100 agent aware Full breakdown ↓
scored 2026-08-30 · rubric v0.17.2
0 APIs
CompanyCryptoWalletsWeb3BlockchainEthereumNEARDeFiSelf-Custody

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-30 · rubric v0.17.2
Composite quality — 20.3/100 · emerging
Contract Quality 0.0 / 21
Developer Ergonomics 8.1 / 17
Access Clarity 0.0 / 17
Operational Transparency 2.0 / 11
Contract Governance 1.9 / 10
Discoverability 4.9 / 9
Regulatory Posture 5.4 / 15
Agent readiness — 5/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 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 Surface 0 / 5
Regulatory Posture applies to this provider. Its tags matched the Payments 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.
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/. This rating is computed from github.com/api-evangelist/sender: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 3

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

Sender Authentication

wallet-connect · 2 schemes

SECURITY

Sender Domain Security

TLSv1.3 · DNSSEC

SECURITY

Sender Vulnerability Disclosure

contact published

SECURITY

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 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 Lifecycle
Lifecycle
 ErrorCatalog
ErrorCatalog
 Conformance
Conformance

Access & Security 4

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity
 VulnerabilityDisclosure
VulnerabilityDisclosure
 Security
Security

Operate 2

Status, limits, changes, and where to get help

Support
Support
 Deprecation
Deprecation

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: sender
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/sender.png
name: Sender
description: 'Sender (Sender Wallet, by Sender Labs / SENDER TECH LIMITED) is a self-custody multi-chain Web3 wallet for NEAR,
  Ethereum and all EVM-compatible chains (Polygon, BNB Chain, Arbitrum, Optimism, Avalanche, Scroll, zkSync Era, TON and 20+
  networks), shipping as a Chrome/Brave/Edge browser extension and iOS and Android apps. For developers, Sender exposes an
  injected browser-provider API: dApps detect the wallet on window.sender.near / window.sender.ethereum (with legacy window.near
  support), request sign-in / account access, and sign and broadcast transactions. The Ethereum provider follows EIP-1193
  and EIP-1102; NEAR exposes requestSignIn, signAndSendTransaction and request. The wallet is audited by SlowMist and runs
  a bug bounty. Surfaced as a portfolio company of Pantera Capital.'
url: https://raw.githubusercontent.com/api-evangelist/sender/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- pantera-capital
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Crypto
- Wallets
- Web3
- Blockchain
- Ethereum
- NEAR
- DeFi
- Self-Custody
tags_raw:
- Company
- Crypto
- Wallet
- Web3
- Blockchain
- Ethereum
- NEAR
- DeFi
- Self-Custody
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://senderwallet.io/
- type: Documentation
  url: https://docs.senderwallet.io/
- type: APIReference
  url: https://docs.senderwallet.io/api-reference/near
- type: GettingStarted
  url: https://docs.senderwallet.io/guide/getting-started
- type: Support
  url: mailto:support@sender.org
- type: Blog
  url: https://medium.com/@senderlabs
- type: LLMsTxt
  url: llms/sender-llms.txt
- type: Conventions
  url: conventions/sender-conventions.yml
- type: Authentication
  url: authentication/sender-authentication.yml
- type: Lifecycle
  url: lifecycle/sender-lifecycle.yml
- type: Deprecation
  url: lifecycle/sender-lifecycle.yml
- type: ErrorCatalog
  url: errors/sender-error-codes.yml
- type: Conformance
  url: conformance/sender-conformance.yml
- type: DomainSecurity
  url: security/sender-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/sender-vulnerability-disclosure.yml
- type: Security
  url: https://senderwallet.io/securityreport
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 8
  pass: local-v1

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