Controlled GraphQL passthrough endpoints for indexer-backed data exploration and compatibility workflows.
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openapi: 3.2.0
info:
title: Euler GraphQL API
version: 3.0.0
description: 'Operations tagged GraphQL across 2 of this provider''s published API definitions: euler-openapi.json, euler-v3-data-api.json. Each path carries the servers of the definition it was published in.'
servers:
- url: /
description: Current environment
security: []
tags:
- name: Graph QL
description: Controlled GraphQL passthrough endpoints for indexer-backed data exploration and compatibility workflows.
paths:
/v3/graphql:
post:
tags:
- Graph QL
summary: GraphQL endpoint
x-status: implemented
description: 'GraphQL endpoint (shared auth/rate limit with REST), proxied to the
Ponder GraphQL API.
Ponder LIKE filter operators reject unescaped `%` and `_` wildcard values.
Before proxying, the API bounds the complete request including unused runtime variables,
variable defaults, inline arguments, input bytes/nodes/depth, boolean clauses, list entries,
aliases, `totalCount`, execution cost, `limit` (default maximum 1,000), and `offset`
(default maximum 10,000). Offset scan cost is `offset + limit`; selected output expansion
remains based on `limit`. Resource violations return `QUERY_TOO_BROAD` and malformed
documents return `VALIDATION_ERROR` without contacting Ponder. Ponder 0.15.17 does not use
`first` or `last` pagination arguments.
Each API process also enforces a shared upstream concurrency cap (default 8), one total
fetch-and-stream timeout (default 10 seconds), redirect rejection, GraphQL JSON media-type
and object-shape validation, and a streamed decoded response cap (default 5,242,880 bytes).
A non-queueing per-process query-cost bucket defaults to 100,000 units of capacity and a
25,000-unit-per-second refill. Exhaustion returns 429 before an upstream slot is acquired;
the shared per-client API rate limiter remains the outer control.
Select a supported chain with the `chainId` query parameter, then
`X-Chain-Id`, then the JSON body `chainId`, in that precedence order.'
parameters:
- name: chainId
in: query
required: false
description: Supported chain to query. Takes precedence over `X-Chain-Id` and body `chainId`.
schema:
type: integer
minimum: 1
- name: X-Chain-Id
in: header
required: false
description: Supported chain to query when the query parameter is absent. Takes precedence over body `chainId`.
schema:
type: integer
minimum: 1
requestBody:
required: true
content:
application/json:
schema:
type: object
required:
- query
properties:
query:
type: string
minLength: 1
pattern: \S
variables:
type: object
operationName:
type: string
chainId:
description: Supported chain to query when neither the query parameter nor `X-Chain-Id` is supplied.
oneOf:
- type: integer
minimum: 1
- type: string
pattern: ^[1-9]\d*$
responses:
'200':
description: GraphQL response
headers:
X-Request-Id:
$ref: '#/components/headers/X-Request-Id'
content:
application/json:
schema:
type: object
'400':
$ref: '#/components/responses/Error400'
'413':
$ref: '#/components/responses/Error413'
'415':
$ref: '#/components/responses/Error415'
'429':
$ref: '#/components/responses/Error429'
'502':
$ref: '#/components/responses/Error502'
'503':
$ref: '#/components/responses/Error503'
operationId: postGraphql
get:
tags:
- Graph QL
summary: GraphQL endpoint (GET query mode)
x-status: implemented
description: 'Lightweight GET mode for development/debugging.
Disabled in production; use POST `/v3/graphql` there.
Requires `query` and optionally accepts `variables` (JSON string) and `operationName`.
Ponder LIKE filter operators reject unescaped `%` and `_` wildcard values.
For standard GraphQL usage, use POST `/v3/graphql`.'
parameters:
- name: query
in: query
required: true
schema:
type: string
- name: variables
in: query
required: false
schema:
type: string
description: JSON-encoded variables object.
- name: operationName
in: query
required: false
schema:
type: string
responses:
'200':
description: GraphQL response
headers:
X-Request-Id:
$ref: '#/components/headers/X-Request-Id'
content:
application/json:
schema:
type: object
'400':
$ref: '#/components/responses/Error400'
'405':
$ref: '#/components/responses/Error405'
'502':
$ref: '#/components/responses/Error502'
'503':
$ref: '#/components/responses/Error503'
operationId: getGraphql
servers:
- url: /
description: Current environment
components:
headers:
X-Request-Id:
description: Request identifier for tracing.
schema:
type: string
schemas:
ErrorResponse:
type: object
required:
- error
properties:
error:
type: object
required:
- code
- message
- requestId
properties:
code:
type: string
description: 'Domain error code. Examples:
- BAD_REQUEST
- INVALID_ADDRESS
- INVALID_CHAIN_ID
- CHAIN_NOT_SUPPORTED
- CHAIN_CAPABILITY_DISABLED
- NOT_FOUND
- VAULT_NOT_FOUND
- TOKEN_NOT_FOUND
- ACCOUNT_NOT_FOUND
- VALIDATION_ERROR
- CONFLICT
- PRECONDITION_FAILED
- PAYLOAD_TOO_LARGE
- RATE_LIMIT_EXCEEDED
- UNSUPPORTED_MEDIA_TYPE
- UPSTREAM_TIMEOUT
- UNAUTHORIZED
- FORBIDDEN
- SERVICE_UNAVAILABLE
- SERVICE_DISABLED
- INTERNAL_ERROR
'
message:
type: string
requestId:
type: string
details:
type: object
additionalProperties: true
description: Context of the error. Where present, `details.reason` is a stable kebab-case value to key on, and `details.cause` narrows a reason that has several causes. The labels routes list theirs in the Labels tag.
ErrorResponse_2:
type: object
required:
- error
properties:
error:
type: object
required:
- code
- message
- requestId
properties:
code:
type: string
description: 'Domain error code. Examples:
- INVALID_ADDRESS
- CHAIN_NOT_SUPPORTED
- VAULT_NOT_FOUND
- TOKEN_NOT_FOUND
- ACCOUNT_NOT_FOUND
- VALIDATION_ERROR
- RATE_LIMIT_EXCEEDED
- UNSUPPORTED_MEDIA_TYPE
- UNAUTHORIZED
- FORBIDDEN
- INTERNAL_ERROR
'
message:
type: string
requestId:
type: string
details:
type: object
additionalProperties: true
responses:
Error502:
description: Upstream dependency failure
headers:
X-Request-Id:
$ref: '#/components/headers/X-Request-Id'
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
Error413:
description: Request body too large
headers:
X-Request-Id:
$ref: '#/components/headers/X-Request-Id'
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
Error400:
description: Bad request
headers:
X-Request-Id:
$ref: '#/components/headers/X-Request-Id'
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
Error503:
description: Service unavailable
headers:
X-Request-Id:
$ref: '#/components/headers/X-Request-Id'
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
Error429:
description: Rate limited
headers:
Retry-After:
description: Seconds until next request is allowed.
schema:
type: integer
X-Request-Id:
$ref: '#/components/headers/X-Request-Id'
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
Error415:
description: Unsupported media type
headers:
X-Request-Id:
$ref: '#/components/headers/X-Request-Id'
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
Error405:
description: Method not allowed
headers:
X-Request-Id:
$ref: '#/components/headers/X-Request-Id'
Allow:
description: Supported methods for this endpoint.
schema:
type: string
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse_2'
securitySchemes:
ApiKeyAuth:
type: apiKey
in: header
name: X-API-Key
description: API key authentication (optional; higher rate limits).
BearerAuth:
type: http
scheme: bearer
bearerFormat: API key
description: 'Alternative to X-API-Key using Authorization: Bearer <key>'
AdminSecret:
type: apiKey
in: header
name: X-Admin-Secret
description: Admin secret (server-to-server) for API key management.
PlatformSession:
type: apiKey
in: cookie
name: euler_platform_session
description: Signed, httpOnly platform-operator browser session cookie.
PlatformCsrf:
type: apiKey
in: header
name: X-CSRF-Token
description: Double-submit CSRF token required for unsafe cookie-authenticated methods.
x-refined-from:
- euler-openapi.json
- euler-v3-data-api.json