Common Paper is a contract management platform that helps revenue, legal, and operations teams build, negotiate, sign, and manage commercial agreements in minutes using a library of committee-drafted standard agreements (Cloud Service Agreement, Mutual NDA, DPA, BAA, Professional Services, Partnership, Software License, Pilot, Design Partner, and Letter of Intent) paired with AI-assisted contract review. The company exposes a public REST API at api.commonpaper.com/v1 with Bearer-token authentication, JSON:API read responses, Ransack filtering, offset pagination, a documented webhook catalog, an agentic account-provisioning flow, and an official hosted MCP server plus a published Claude agent skill, so agents and integrations can list, create, send, void, reassign, and download agreements and templates programmatically.
Common Paper is listed with 1 API on the APIs.io network. Tagged areas include Company, Contracts, Contract Management, Legal Tech, and Agreements.
The Common Paper catalog on APIs.io includes 1 event-driven AsyncAPI specification.
Common Paper’s developer surface includes documentation, API reference, getting-started guide, authentication, support, engineering blog, pricing, and 20 more developer resources.
Regulatory Posture applies to this provider. Its tags matched the
Horizontal (data, software, accessibility, platform) regime, so
Regulatory Posture carries 15 points of the composite.
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provider repo — the
applicability map is public and we will correct it.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for
this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero:
never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and
several others — scorable at all.
The six quality facets above are damped to 85 points between them,
because the conditional facet above carries the other
15. That is why each facet's contribution is shown against a damped
maximum: raising a quality facet moves the composite by 85% of its nominal
weight, not 100%. The full arithmetic is at apis.io/rating/.
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Agent readiness — checks not met, largest first (exact, from this profile):
Idempotency+9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card+8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling+7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples+7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Documented Reversibility+6 pts — a reversal operation in the contract, graded up when a window is documented too
4 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
The Kin Score Market layer reads a provider inside its market:
its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted:
not part of the Kin Score or agent readiness.
Registered MCP server and declares compatibility are report only — not weighted.
Undeclared means we found nothing we can read, so there is no number: we never infer integrations.
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.
REST API for managing Common Paper agreements and templates — list, create, send, void, reassign, download, and share agreements; manage templates, attachments, users, organizat...
aid: common-paper
deliveryModel:
model: saas
open_source: false
commercial: true
callable_host: false
label: Hosted service · you call their endpoint
confidence: medium
source:
- pricing
generated: '2026-08-28'
method: derived
accessModel:
pricing: freemium
onboarding: self-serve
trial: false
try_now: true
public: false
gated: none
gated_source:
- onboarding
label: Freemium · Self-serve signup
confidence: medium
source:
- plans
- authentication
- security
generated: '2026-11-06'
method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/common-paper.png
name: Common Paper
description: Common Paper is a contract management platform that helps revenue, legal, and operations teams build, negotiate,
sign, and manage commercial agreements in minutes using a library of committee-drafted standard agreements (Cloud Service
Agreement, Mutual NDA, DPA, BAA, Professional Services, Partnership, Software License, Pilot, Design Partner, and Letter
of Intent) paired with AI-assisted contract review. The company exposes a public REST API at api.commonpaper.com/v1 with
Bearer-token authentication, JSON:API read responses, Ransack filtering, offset pagination, a documented webhook catalog,
an agentic account-provisioning flow, and an official hosted MCP server plus a published Claude agent skill, so agents and
integrations can list, create, send, void, reassign, and download agreements and templates programmatically.
url: https://raw.githubusercontent.com/api-evangelist/common-paper/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- uncork-capital
x-tier: profile
x-tier-reason: portfolio-lead-enriched
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Contracts
- Contract Management
- Legal Tech
- Agreements
- SaaS Contracts
- E-Signature
- Webhook
- MCP
tags_raw:
- Company
- Contracts
- Contract Management
- Legal Tech
- Agreements
- SaaS Contracts
- E-Signature
- API
- Webhooks
- MCP
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
- FN: APIs.json
email: info@apis.io
apis:
- name: Common Paper API
description: REST API for managing Common Paper agreements and templates — list, create, send, void, reassign, download,
and share agreements; manage templates, attachments, users, organizations, invitations, and agreement history; plus an
agentic account-provisioning flow (mint-key / redeem-for-account) and a hosted MCP endpoint. Bearer-token auth, JSON:API
reads, Ransack filtering, offset pagination.
humanURL: https://api.commonpaper.com/docs
baseURL: https://api.commonpaper.com/v1
tags:
- Contracts
- Agreements
- Templates
- Legal Tech
properties:
- type: Documentation
url: https://api.commonpaper.com/docs
- type: APIReference
url: https://api.commonpaper.com/docs/api
- type: Authentication
url: authentication/common-paper-authentication.yml
- type: Conventions
url: conventions/common-paper-conventions.yml
- type: ErrorCatalog
url: errors/common-paper-problem-types.yml
- type: DataModel
url: data-model/common-paper-data-model.yml
- type: Conformance
url: conformance/common-paper-conformance.yml
- type: Webhooks
url: asyncapi/common-paper-webhooks.yml
- type: X-MCPServerCandidate
url: mcp/common-paper-mcp.yml
note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list
derived from the published API contracts, not an existing server. The scorer already read the manifest and reported
mcp_server correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
common:
- type: Plans
url: plans/common-paper-plans-pricing.yml
- type: DomainSecurity
url: security/common-paper-domain-security.yml
- type: Website
url: https://commonpaper.com
- type: DeveloperPortal
url: https://api.commonpaper.com/docs
- type: Documentation
url: https://api.commonpaper.com/docs
- type: APIReference
url: https://api.commonpaper.com/docs/api
- type: GettingStarted
url: https://api.commonpaper.com/docs
- type: Authentication
url: authentication/common-paper-authentication.yml
- type: X-MCPServerCandidate
url: mcp/common-paper-mcp.yml
note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: AgentSkill
url: skills/_index.yml
- type: Webhooks
url: asyncapi/common-paper-webhooks.yml
- type: LLMsTxt
url: llms/common-paper-llms.txt
- type: Conventions
url: conventions/common-paper-conventions.yml
- type: ErrorCatalog
url: errors/common-paper-problem-types.yml
- type: Lifecycle
url: lifecycle/common-paper-lifecycle.yml
- type: StatusPage
url: https://status.commonpaper.com/
- type: Conformance
url: conformance/common-paper-conformance.yml
- type: DataModel
url: data-model/common-paper-data-model.yml
- type: TrustCenter
url: https://trust.commonpaper.com/
- type: Support
url: https://help.commonpaper.com/en/
- type: Blog
url: https://commonpaper.com/blog
- type: GitHubOrganization
url: https://github.com/commonpaper
- type: Pricing
url: https://commonpaper.com/pricing
- type: SignUp
url: https://app.commonpaper.com/auth/auth0?screen_hint=signup
- type: Login
url: https://app.commonpaper.com/auth/auth0?screen_hint=signin
- type: TermsOfService
url: https://commonpaper.com/website-terms-of-use
- type: PrivacyPolicy
url: https://commonpaper.com/privacy-policy
x-enrichment:
date: '2026-07-19'
status: backfilled
pass: local-v1
note: backfilled from .gitignore signal + verified work evidence
Common Paper API — frequently asked questions
Does Common Paper have an API?
Yes. APIs.io lists 1 API from Common Paper, including Common Paper API.
How do I authenticate with the Common Paper API?
Common Paper documents its authentication (http · 1 scheme). The details are profiled on APIs.io as Common Paper Authentication.
How much does the Common Paper API cost?
Common Paper publishes its prices; its Free plan is $0 as of 2026-10-28. APIs.io lists 4 pricing plans for Common Paper, with each plan's price, limits and inclusions under Pricing on this page.
Is the Common Paper API ready for AI agents?
Common Paper has a Kin Score of 52.9 out of 100 (developing) and an Agent Readiness score of 51.1 (agent-ready), scored by API Evangelist on 2026-11-06.
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