Avalanche Primary Network UTXOs API

Find information about utxos on Avalanche's Primary Network Chains - the P-Chain, the X-Chain, and the C-Chain.

Documentation GitHub OpenAPI

Operations 4

GET /v1/networks/{network}/blockchains/{blockchainId}/utxos List UTXOs #

POST /v1/networks/{network}/blockchains/{blockchainId}/utxos List UTXOs v2 - Supports querying for more addresses #

GET /v1/networks/{network}/blockchains/{blockchainId}/lastActivityTimestampByAddresses Get last activity timestamp by addresses #

POST /v1/networks/{network}/blockchains/{blockchainId}/lastActivityTimestampByAddresses Get last activity timestamp by addresses v2 #

Work with this as data

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

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this

find_apisBrowse and filter every API in the catalog.
get_api_artifactsOne API's artifacts, grouped by type.
get_openapiThe primary OpenAPI for this API.
find_similar_apisAPIs that look like this one.
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.

All 92 tools →

Call it yourself

curl for this page

This API

curl "https://apis.io/api/v1/apis/avalanche:avalanche-primary-network-utxos-api"

All apis

curl "https://apis.io/api/v1/apis?limit=25"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

openapi: 3.2.0
info:
  title: Data Primary Network UTXOs API
  description: The Data API provides web3 application developers with multi-chain data related to Avalanche's primary network, Avalanche subnets, and Ethereum.
  version: 1.0.0
  contact: {}
servers:
- url: https://data-api.avax.network
security:
- apiKey: []
- {}
tags:


# --- truncated at 32 KB (37 KB total) ---
# Full source: https://artifacts.apis.io/avalanche/openapi/avalanche-primary-network-utxos-api-openapi.yml