generated: '2026-07-21'
method: derived
source: docs.sequence.xyz/api-references + openapi/ (7 webrpc specs)
protocol:
  style: webrpc
  transport: HTTPS POST to /rpc/{Service}/{Method}
  content_type: application/json
  note: >-
    All Sequence APIs are webrpc-generated. Every operation is an HTTP POST with a JSON
    body; there are no path/query resource semantics. OpenAPI 3.0 is emitted from the
    webrpc schema for documentation.
auth:
  styles:
  - project_access_key
  - secret_jwt_bearer
  access_key_header: X-Access-Key
  bearer_format: JWT
  cross_ref: authentication/sequence-authentication.yml
idempotency:
  supported: false
  note: No Idempotency-Key header or idempotent-write mechanism is documented.
pagination:
  style: cursor-and-page-hybrid
  request_object: page
  request_fields:
  - page
  - column
  - before
  - after
  - sort
  - pageSize
  response_field: page.more
  note: >-
    List operations accept a shared Page object; the returned page.more boolean and
    before/after cursors drive continuation.
field_expansion:
  supported: false
metadata:
  supported: true
  note: Token/contract metadata is a first-class API (Metadata service), not a generic
    key/value bag on every object.
request_id:
  supported: unknown
  note: No documented request-id/trace header convention.
versioning:
  cross_ref: lifecycle/sequence-lifecycle.yml
errors:
  envelope: webrpc
  cross_ref: errors/sequence-problem-types.yml
  note: JSON body with numeric code + msg and matching HTTP status; not RFC 9457.
rate_limiting:
  signaled: true
  mechanism: >-
    Rate limits vary by subscription tier and available MAUs (configured per project in
    Sequence Builder). ErrorRateLimited (code 2005) is returned with HTTP 429.
  error_code: 2005
  http_status: 429