InkSeal
InkSeal provides a digital document signing platform that allows users to upload PDFs, Word files, or images and convert them into signable PDFs. Signers can review, sign, and return documents via a private link without needing an account. The service offers a credit‑based pricing model with no subscriptions, supporting individual and team workflows. Features include customizable signing fields, automatic reminders, audit trails, and integration options for developers through a RESTful API. InkSeal aims to simplify contract execution and document management for businesses of all sizes.
InkSeal publishes 10 API contracts indexed on the APIs.io network, including Account API, Credentials API, Credits API, and 7 more. Tagged areas include E-Signature, Developer API, and Credit Pricing.
The InkSeal catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 1 Spectral governance ruleset.
InkSeal’s developer surface includes CLI, changelog, authentication, signup flow, documentation, API reference, getting-started guide, and 25 more developer resources.
Kin Score
Standards implemented 2
Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.
APIs 10
Individual APIs this provider publishes, each with its own machine-readable definition.
InkSeal Account API
Workspace settings, the inbound mail inbox, the addresses it accepts documents from, and the account summary.
InkSeal Credentials API
Service credentials: minting, rotating, narrowing, and revoking API keys.
InkSeal Credits API
The workspace credit balance, its transaction history, and buying more.
InkSeal Detection API
AI field detection runs over a normalized document, and their results.
InkSeal Documents API
Uploading files, tracking normalization, and reading the normalized PDF and its page images.
InkSeal Envelopes API
Draft envelopes, signers, fields, sending for signature, and the signing evidence.
InkSeal Inbound Requests API
Envelopes the mail agent drafted from an inbound email, and their approval or cancellation.
InkSeal Public links API
Publish a template for respondents to fill and confirm by email.
InkSeal Templates API
Reusable document layouts with named roles and fields.
InkSeal Webhooks API
Webhook subscriptions, their delivery history, and manual retries.
Scroll for all 10
Agent Skills 5
Packaged agent skills for driving this provider's APIs from an AI assistant.
inkseal-net-approve-inbound-request
AGENT SKILLinkseal-net-create-webhook-subscription
AGENT SKILLinkseal-net-manage-authorized-senders
AGENT SKILLinkseal-net-send-envelope
AGENT SKILLinkseal-net-top-up-credits
AGENT SKILLInkSeal API pricing
Prices published by InkSeal, read 2026-11-12 from inkseal.net/pricing.
| Plan | Price |
|---|---|
| Starter | $9 |
| Standard | $39 |
| Professional | $69 |
| Business | $119 |
| Enterprise | $499 |
Pricing Plans 1
Published pricing tiers and plan structures.
Event Specifications 1
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Inkseal Net Webhooks
ASYNCAPISemantic Vocabularies 1
JSON-LD contexts and semantic vocabularies used across these APIs.
Inkseal Net Context
JSON-LDSpectral Rules 1
Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.
InkSeal API Rules
SPECTRALJSON Schema 6
Standalone JSON Schema definitions for this provider's data models.
AuditTrailEntry
JSON SCHEMAAuthorizedSender
JSON SCHEMADetectionRun
JSON SCHEMAEnvelopeCreated
JSON SCHEMAEnvelopeDetail
JSON SCHEMAStructuredEnvelopeField
JSON SCHEMASecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access (API Evangelist recommendations) 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 3
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 10
Pagination, idempotency, versioning, errors, and events
Scroll for all 10
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 3
Status, limits, changes, and where to get help
Commercial 4
Pricing, plans, and the legal terms of use
Company 1
The organization behind the API
Other 2
Properties that don't map to a standard resource type
Source (apis.yml)
InkSeal API — frequently asked questions
Does InkSeal have an API?
Yes. APIs.io lists 10 APIs from InkSeal, including InkSeal Account API, InkSeal Credentials API and InkSeal Credits API, and 7 more.
Is there an OpenAPI specification for the InkSeal API?
Yes. APIs.io indexes 10 OpenAPI specifications for InkSeal, each linked for download from this page.
How do I authenticate with the InkSeal API?
InkSeal documents its authentication (2 schemes). The details are profiled on APIs.io as InkSeal Authentication.
How much does the InkSeal API cost?
InkSeal publishes its prices; its Starter plan is $9 as of 2026-11-12. APIs.io lists 5 pricing plans for InkSeal, with each plan's price, limits and inclusions under Pricing on this page.
Is the InkSeal API ready for AI agents?
InkSeal has a Kin Score of 54.9 out of 100 (strong) and an Agent Readiness score of 55.6 (agent-native), scored by API Evangelist on 2026-11-13.
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.