beacon-node-oapi.yaml

openapi: "3.0.3"

info:
  title: "Eth Beacon Node API"
  description: |
    API specification for the beacon node, which enables users to query and participate in Ethereum 2.0 phase 0 beacon chain.

    All requests by default send and receive JSON, and as such should have either or both of the "Content-Type: application/json"
    and "Accept: application/json" headers.  In addition, some requests can return data in the SSZ format.  To indicate that SSZ
    data is required in response to a request the header "Accept: application/octet-stream" should be sent.  Note that only a subset
    of requests can respond with data in SSZ format; these are noted in each individual request.

    API endpoints are individually versioned.  As such, there is no direct relationship between all v1 endpoints, all v2 endpoints,
    _etc._ and no such relationship should be inferred.  All JSON responses return the requested data under a `data` key in the top
    level of their response.  Additional metadata may or may not be present in other keys at the top level of the response, dependent
    on the endpoint.  The rules that require an increase in version number are as follows:

      - no field that is listed in an endpoint shall be removed without an increase in the version number
      - no field that is listed in an endpoint shall be altered in terms of format (_e.g._ from a string to an array) without an
        increase in the version number

    Note that it is possible for a field to be added to an endpoint's data or metadata without an increase in the version number.

  version: "Dev - Eth2Spec v1.1.0"
  contact:
    name: Ethereum Github
    url: https://github.com/ethereum/beacon-apis/issues
  license:
    name: "CC0-1.0"
    url: "https://creativecommons.org/publicdomain/zero/1.0/"

servers:
  - url: "{server_url}"
    variables:
      server_url:
        description: "Beacon node API url"
        default: "http://public-mainnet-node.ethereum.org/"

tags:
  - name: Beacon
    description: Set of endpoints to query beacon chain.
  - name: Config
    description: Endpoints to query chain configuration, specification, and fork schedules.
  - name: Debug
    description: Set of endpoints to debug chain and shouldn't be exposed publicly.
  - name: Events
    description: Set of endpoints to for event subscription.
  - name: Node
    description: Endpoints to query node related informations
  - name: Validator
    description: Endpoints intended for validator clients
  - name: ValidatorRequiredApi
    description: |
      Minimal set of endpoints to enable a working validator implementation.

      [Checkout validator flow](./validator-flow.md) to learn how to use this api.
paths:

  /eth/v1/beacon/genesis:
    $ref: "./apis/beacon/genesis.yaml"
  /eth/v1/beacon/states/{state_id}/root:
    $ref: "./apis/beacon/states/root.yaml"
  /eth/v1/beacon/states/{state_id}/fork:
    $ref: "./apis/beacon/states/fork.yaml"
  /eth/v1/beacon/states/{state_id}/finality_checkpoints:
    $ref: "./apis/beacon/states/finality_checkpoints.yaml"
  /eth/v1/beacon/states/{state_id}/validators:
    $ref: "./apis/beacon/states/validators.yaml"
  /eth/v1/beacon/states/{state_id}/validators/{validator_id}:
    $ref: "./apis/beacon/states/validator.yaml"
  /eth/v1/beacon/states/{state_id}/validator_balances:
    $ref: "./apis/beacon/states/validator_balances.yaml"
  /eth/v1/beacon/states/{state_id}/committees:
    $ref: "./apis/beacon/states/committee.yaml"
  /eth/v1/beacon/states/{state_id}/sync_committees:
    $ref: "./apis/beacon/states/sync_committees.yaml"
  /eth/v1/beacon/states/{state_id}/randao:
    $ref: "./apis/beacon/states/randao.yaml"
  /eth/v1/beacon/headers:
    $ref: "./apis/beacon/blocks/headers.yaml"
  /eth/v1/beacon/headers/{block_id}:
    $ref: "./apis/beacon/blocks/header.yaml"
  /eth/v1/beacon/blinded_blocks:
    $ref: "./apis/beacon/blocks/blinded_blocks.yaml"
  /eth/v1/beacon/blocks:
    $ref: "./apis/beacon/blocks/blocks.yaml"
  /eth/v2/beacon/blocks/{block_id}:
    $ref: "./apis/beacon/blocks/block.v2.yaml"
  /eth/v1/beacon/blocks/{block_id}/root:
    $ref: "./apis/beacon/blocks/root.yaml"
  /eth/v1/beacon/blocks/{block_id}/attestations:
    $ref: "./apis/beacon/blocks/attestations.yaml"
  /eth/v1/beacon/blinded_blocks/{block_id}:
    $ref: "./apis/beacon/blocks/blinded_block.yaml"
  /eth/v1/beacon/light_client/bootstrap/{block_root}:
    $ref: "./apis/beacon/light_client/bootstrap.yaml"
  /eth/v1/beacon/light_client/updates:
    $ref: "./apis/beacon/light_client/updates.yaml"
  /eth/v1/beacon/light_client/finality_update:
    $ref: "./apis/beacon/light_client/finality_update.yaml"
  /eth/v1/beacon/light_client/optimistic_update:
    $ref: "./apis/beacon/light_client/optimistic_update.yaml"
  /eth/v1/beacon/pool/attestations:
    $ref: "./apis/beacon/pool/attestations.yaml"
  /eth/v1/beacon/pool/attester_slashings:
    $ref: "./apis/beacon/pool/attester_slashings.yaml"
  /eth/v1/beacon/pool/proposer_slashings:
    $ref: "./apis/beacon/pool/proposer_slashings.yaml"
  /eth/v1/beacon/pool/sync_committees:
    $ref: "./apis/beacon/pool/sync_committees.yaml"
  /eth/v1/beacon/pool/voluntary_exits:
    $ref: "./apis/beacon/pool/voluntary_exists.yaml"
  /eth/v1/beacon/pool/bls_to_execution_changes:
    $ref: "./apis/beacon/pool/bls_to_execution_changes.yaml"

  /eth/v2/debug/beacon/states/{state_id}:
    $ref: './apis/debug/state.v2.yaml'
  /eth/v1/debug/beacon/heads:
    $ref: './apis/debug/heads.yaml'
  /eth/v2/debug/beacon/heads:
    $ref: './apis/debug/heads.v2.yaml'
  /eth/v1/debug/fork_choice:
    $ref: './apis/debug/fork_choice.yaml'

  /eth/v1/node/identity:
    $ref: "./apis/node/identity.yaml"
  /eth/v1/node/peers:
    $ref: "./apis/node/peers.yaml"
  /eth/v1/node/peers/{peer_id}:
    $ref: "./apis/node/peer.yaml"
  /eth/v1/node/peer_count:
    $ref: "./apis/node/peer_count.yaml"
  /eth/v1/node/version:
    $ref: "./apis/node/version.yaml"
  /eth/v1/node/syncing:
    $ref: "./apis/node/syncing.yaml"
  /eth/v1/node/health:
    $ref: "./apis/node/health.yaml"

  /eth/v1/config/fork_schedule:
    $ref: "./apis/config/fork_schedule.yaml"
  /eth/v1/config/spec:
    $ref: "./apis/config/spec.yaml"
  /eth/v1/config/deposit_contract:
    $ref: "./apis/config/deposit_contract.yaml"

  /eth/v1/validator/duties/attester/{epoch}:
    $ref: "./apis/validator/duties/attester.yaml"
  /eth/v1/validator/duties/proposer/{epoch}:
    $ref: "./apis/validator/duties/proposer.yaml"
  /eth/v1/validator/duties/sync/{epoch}:
    $ref: "./apis/validator/duties/sync.yaml"
  /eth/v2/validator/blocks/{slot}:
    $ref: "./apis/validator/block.v2.yaml"
  /eth/v1/validator/blinded_blocks/{slot}:
    $ref: "./apis/validator/blinded_block.yaml"
  /eth/v1/validator/attestation_data:
    $ref: "./apis/validator/attestation_data.yaml"
  /eth/v1/validator/aggregate_attestation:
    $ref: "./apis/validator/aggregate_attestation.yaml"
  /eth/v1/validator/aggregate_and_proofs:
    $ref: "./apis/validator/aggregate_and_proofs.yaml"
  /eth/v1/validator/beacon_committee_subscriptions:
    $ref: "./apis/validator/beacon_committee_subscriptions.yaml"
  /eth/v1/validator/sync_committee_subscriptions:
    $ref: "./apis/validator/sync_committee_subscriptions.yaml"
  /eth/v1/validator/sync_committee_contribution:
    $ref: "./apis/validator/sync_committee_contribution.yaml"
  /eth/v1/validator/contribution_and_proofs:
    $ref: "./apis/validator/sync_committee_contribution_and_proof.yaml"
  /eth/v1/validator/prepare_beacon_proposer:
    $ref: "./apis/validator/prepare_beacon_proposer.yaml"
  /eth/v1/validator/register_validator:
    $ref: "./apis/validator/register_validator.yaml"
  /eth/v1/validator/liveness:
    $ref: "./apis/validator/liveness.yaml"

  /eth/v1/events:
    $ref: "./apis/eventstream/index.yaml"


components:
  schemas:
    BeaconState:
      $ref: './types/state.yaml#/BeaconState'
    BeaconBlock:
      $ref: './types/block.yaml#/BeaconBlock'
    SignedBeaconBlock:
      $ref: './types/block.yaml#/SignedBeaconBlock'
    SignedBeaconBlockHeader:
      $ref: './types/block.yaml#/SignedBeaconBlockHeader'
    ValidatorResponse:
      $ref: './types/api.yaml#/ValidatorResponse'
    ValidatorBalanceResponse:
      $ref: './types/api.yaml#/ValidatorBalanceResponse'
    ValidatorStatus:
      $ref: './types/api.yaml#/ValidatorStatus'
    Committee:
      $ref: './types/api.yaml#/Committee'
    AttesterSlashing:
      $ref: './types/attester_slashing.yaml#/AttesterSlashing'
    ProposerSlashing:
      $ref: './types/proposer_slashing.yaml#/ProposerSlashing'
    SignedVoluntaryExit:
      $ref: './types/voluntary_exit.yaml#/SignedVoluntaryExit'
    SignedBLSToExecutionChange:
      $ref: './types/bls_to_execution_change.yaml#/SignedBLSToExecutionChange'
    AttesterDuty:
      $ref: './types/validator.yaml#/AttesterDuty'
    ProposerDuty:
      $ref: './types/validator.yaml#/ProposerDuty'
    Altair.SyncDuty:
      $ref: './types/validator.yaml#/Altair/SyncDuty'
    SignedAggregateAndProof:
      $ref: './types/validator.yaml#/SignedAggregateAndProof'
    Attestation:
      $ref: './types/attestation.yaml#/Attestation'
    AttestationData:
      $ref: './types/attestation.yaml#/AttestationData'
    Fork:
      $ref: './types/misc.yaml#/Fork'
    Checkpoint:
      $ref: './types/misc.yaml#/Checkpoint'
    Uint64:
      $ref: './types/primitive.yaml#/Uint64'
    NetworkIdentity:
      $ref: './types/p2p.yaml#/NetworkIdentity'
    Peer:
      $ref: './types/p2p.yaml#/Peer'
    PeerId:
      $ref: './types/p2p.yaml#/PeerId'
    PeerConnectionState:
      $ref: './types/p2p.yaml#/PeerConnectionState'
    PeerConnectionDirection:
      $ref: './types/p2p.yaml#/PeerConnectionDirection'
    GenesisTime:
      $ref: './types/primitive.yaml#/GenesisTime'
    Version:
      $ref: './types/primitive.yaml#/Version'
    ForkVersion:
      $ref: './types/primitive.yaml#/ForkVersion'
    DependentRoot:
      $ref: './types/primitive.yaml#/DependentRoot'
    ExecutionOptimistic:
      $ref: './types/primitive.yaml#/ExecutionOptimistic'
    Finalized:
      $ref: './types/primitive.yaml#/Finalized'
    Root:
      $ref: './types/primitive.yaml#/Root'
    Hex:
      $ref: './types/primitive.yaml#/Hex'
    Graffiti:
      $ref: './types/primitive.yaml#/Graffiti'
    Signature:
      $ref: './types/primitive.yaml#/Signature'
    ErrorMessage:
      $ref: './types/http.yaml#/ErrorMessage'
    IndexedErrorMessage:
      $ref: './types/http.yaml#/IndexedErrorMessage'
    Altair.LightClientBootstrap:
      $ref: './types/altair/light_client.yaml#/Altair/LightClientBootstrap'
    Altair.LightClientUpdate:
      $ref: './types/altair/light_client.yaml#/Altair/LightClientUpdate'
    Altair.LightClientFinalityUpdate:
      $ref: './types/altair/light_client.yaml#/Altair/LightClientFinalityUpdate'
    Altair.LightClientOptimisticUpdate:
      $ref: './types/altair/light_client.yaml#/Altair/LightClientOptimisticUpdate'
    Altair.SignedBeaconBlock:
      $ref: './types/altair/block.yaml#/Altair/SignedBeaconBlock'
    Altair.BeaconBlock:
      $ref: './types/altair/block.yaml#/Altair/BeaconBlock'
    Altair.BeaconState:
      $ref: './types/altair/state.yaml#/Altair/BeaconState'
    Altair.SyncCommitteeSignature:
      $ref: './types/altair/sync_committee.yaml#/Altair/SyncCommitteeSignature'
    Altair.SyncCommitteeSubscription:
      $ref: './types/altair/sync_committee.yaml#/Altair/SyncCommitteeSubscription'
    Altair.ContributionAndProof:
      $ref: './types/altair/sync_committee.yaml#/Altair/ContributionAndProof'
    Altair.SignedContributionAndProof:
      $ref: './types/altair/sync_committee.yaml#/Altair/SignedContributionAndProof'
    Altair.SyncCommitteeContribution:
      $ref: './types/altair/sync_committee.yaml#/Altair/SyncCommitteeContribution'
    Altair.SyncCommittee:
      $ref: './types/altair/sync_committee.yaml#/Altair/SyncCommitteeByValidatorIndices'
    ExecutionAddress:
      $ref: './types/primitive.yaml#/ExecutionAddress'
    Bellatrix.BeaconState:
      $ref: './types/bellatrix/state.yaml#/Bellatrix/BeaconState'
    Bellatrix.BeaconBlock:
      $ref: './types/bellatrix/block.yaml#/Bellatrix/BeaconBlock'
    Bellatrix.SignedBeaconBlock:
      $ref: './types/bellatrix/block.yaml#/Bellatrix/SignedBeaconBlock'
    Bellatrix.BlindedBeaconBlock:
      $ref: './types/bellatrix/block.yaml#/Bellatrix/BlindedBeaconBlock'
    Bellatrix.SignedBlindedBeaconBlock:
      $ref: './types/bellatrix/block.yaml#/Bellatrix/SignedBlindedBeaconBlock'
    ConsensusVersion:
      enum: [phase0, altair, bellatrix, capella]
      example: "phase0"
    SignedValidatorRegistration:
      $ref: './types/registration.yaml#/SignedValidatorRegistration'
    Capella.BeaconState:
      $ref: './types/capella/state.yaml#/Capella/BeaconState'
    Capella.BeaconBlock:
      $ref: './types/capella/block.yaml#/Capella/BeaconBlock'
    Capella.SignedBeaconBlock:
      $ref: './types/capella/block.yaml#/Capella/SignedBeaconBlock'
    Capella.BlindedBeaconBlock:
      $ref: './types/capella/block.yaml#/Capella/BlindedBeaconBlock'
    Capella.SignedBlindedBeaconBlock:
      $ref: './types/capella/block.yaml#/Capella/SignedBlindedBeaconBlock'
    Node:
      $ref: './types/fork_choice.yaml#/Node'
    ExtraData:
      $ref: './types/fork_choice.yaml#/ExtraData'

  parameters:
    StateId:
      $ref: './params/index.yaml#/StateId'
    BlockId:
      $ref: './params/index.yaml#/BlockId'
    BlockRoot:
      $ref: './params/index.yaml#/BlockRoot'

  responses:
    InvalidRequest:
      $ref: './types/http.yaml#/InvalidRequest'
    NotFound:
      $ref: './types/http.yaml#/NotFound'
    UnsupportedMediaType:
      $ref: './types/http.yaml#/UnsupportedMediaType'
    InternalError:
      $ref: './types/http.yaml#/InternalError'
    CurrentlySyncing:
      $ref: './types/http.yaml#/CurrentlySyncing'

  headers:
    Eth-Consensus-Version:
      description: Required in response so client can deserialize returned json or ssz data more effectively.
      required: true
      schema:
        $ref: '#/components/schemas/ConsensusVersion'