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, Wallet, 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

17.3/100 emerging Agent 17/100 agent aware Full breakdown ↓
scored 2026-07-21 · rubric v0.4

0 APIs 0 Features

CompanyCryptoWalletWeb3BlockchainEthereumNEARDeFiSelf-Custody

API Rating

API Evangelist Rating How this is scored →
scored 2026-07-21 · rubric v0.4

Composite quality — 17.3/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 8.7 / 20

Commercial Clarity 0.0 / 20

Operational Transparency 2.4 / 13

Governance 0.0 / 12

Discoverability 6.3 / 10

Agent readiness — 17/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

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

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 →

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

Lifecycle

ErrorCatalog

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)

aid: sender
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: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- 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