Cofferline

Cofferline provides treasury and risk infrastructure for prediction‑market agents. It offers a non‑custodial, API‑first service where agents can set risk policies, manage funds, and execute trades via SIWE authentication. The platform aims to enable autonomous agents to handle money safely, with features like per‑market caps, daily loss stops, and double‑entry bookkeeping, all accessible through a single OpenAPI.

Cofferline publishes 1 API contract indexed on the APIs.io network. Tagged areas include Treasury, Prediction Markets, Non-Custodial, SIWE Authentication, and Agent Infrastructure.

The Cofferline catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 1 Spectral governance ruleset.

Cofferline’s developer surface includes authentication, documentation, API reference, getting-started guide, support, and 23 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

42.4/100 developing Agent 35/100 agent ready Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

2 published contracts

Treasury Prediction Markets Non-CustodialSIWE AuthenticationAgent Infrastructure

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 42.4/100 · developing

Contract Quality 11.3 / 21

Developer Ergonomics 9.3 / 17

Access Clarity 3.6 / 17

Operational Transparency 2.0 / 11

Contract Governance 2.2 / 10

Discoverability 5.6 / 9

Regulatory Posture 4.6 / 15

Agent readiness — 35/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 6

Agent Skills 0 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 8 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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. If this regime is wrong for your business, say so on your 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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

6 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 21.1 — up to +15.8 composite points
Contract Quality scores 53.2 — up to +11.7 composite points
Operational Transparency scores 18.4 — up to +10.6 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/cofferline-com/apis.yml: open an issue on github.com/api-evangelist/cofferline-com to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

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.

Agent2Agent

measured — observed by APIs.io (conformant)

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Cofferline API

Treasury infrastructure for autonomous agents.

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Cofferline Com Webhooks

ASYNCAPI

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Cofferline Com Context

12 classes · 78 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Cofferline API Rules

45 rules · 39 errors 4 warnings 2 info

SPECTRAL

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Cofferline Com Authentication

1 scheme

SECURITY

Cofferline Com Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Cofferline Com Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 9

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

Webhooks

DataModel

Idempotency

Conventions

ErrorCatalog

Conformance

Scroll for all 9

Access & Security 6

Authentication, authorization, and security posture

Security

Authentication

SecurityTxt

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 1

The organization behind the API

Website

Website

Other 3

Properties that don't map to a standard resource type

AgentCard

AgentCard

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: cofferline-com
name: Cofferline
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://cofferline.com/brand/logo.png
description: Cofferline provides treasury and risk infrastructure for prediction‑market agents. It offers a non‑custodial,
  API‑first service where agents can set risk policies, manage funds, and execute trades via SIWE authentication. The platform
  aims to enable autonomous agents to handle money safely, with features like per‑market caps, daily loss stops, and double‑entry
  bookkeeping, all accessible through a single OpenAPI.
url: https://artifacts.apis.io/cofferline-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-04 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-04'
modified: '2026-11-04'
tags:
- Treasury
- Prediction Markets
- Non-Custodial
- SIWE Authentication
- Agent Infrastructure
tags_raw:
- Treasury
- Prediction Markets
- API
- Non‑custodial
- SIWE Authentication
- Agent Infrastructure
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: PrivacyPolicy
  url: https://cofferline.com/docs/privacy-v1
- type: Spectral
  url: rules/cofferline-com-rules.yml
- type: JSONLD
  url: json-ld/cofferline-com-context.jsonld
- type: Vocabulary
  url: vocabulary/cofferline-com-vocabulary.yml
- type: Webhooks
  url: asyncapi/cofferline-com-webhooks.yml
- type: DataModel
  url: data-model/cofferline-com-data-model.yml
- type: Idempotency
  url: conventions/cofferline-com-conventions.yml
- type: Conventions
  url: conventions/cofferline-com-conventions.yml
- type: Security
  url: security/cofferline-com-vulnerability-disclosure.yml
- type: Authentication
  url: authentication/cofferline-com-authentication.yml
- type: ErrorCatalog
  url: errors/cofferline-com-problem-types.yml
- type: Conformance
  url: conformance/cofferline-com-conformance.yml
- type: LLMsTxt
  url: llms/cofferline-com-llms.txt
- type: AgentCard
  url: a2a/cofferline-com-a2a.yml
- type: SecurityTxt
  url: well-known/cofferline-com-security.txt
- type: SecurityTxt
  url: well-known/cofferline-com-dev-security.txt
- type: WellKnown
  url: well-known/cofferline-com-well-known.yml
- type: Hosts
  url: hosts/cofferline-com-hosts.yml
- type: Vendors
  url: vendors/cofferline-com-vendors.yml
- type: DeveloperPortal
  url: https://dev.cofferline.com/
- type: VulnerabilityDisclosure
  url: security/cofferline-com-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/cofferline-com-domain-security.yml
- type: Website
  url: https://cofferline.com/
- type: Documentation
  url: https://cofferline.com/docs
- type: APIReference
  url: https://api.cofferline.com/openapi.json
- type: GettingStarted
  url: https://cofferline.com/docs/agent-quickstart
- type: Support
  url: https://cofferline.com/legal/custody.json
- type: TermsOfService
  url: https://cofferline.com/legal/tos
apis:
- name: Cofferline API
  description: Treasury infrastructure for autonomous agents.
  humanURL: https://cofferline.com/docs
  baseURL: https://api.cofferline.com
  properties: []
  aid: cofferline-com:cofferline-api
x-enrichment:
  date: '2026-11-04'
  status: enriched
  artifacts_added: 27
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Cofferline API — frequently asked questions

Does Cofferline have an API?

Yes. APIs.io lists 1 API from Cofferline, including Cofferline API.

How do I authenticate with the Cofferline API?

Cofferline uses bearer-token authentication (1 scheme). The details are profiled on APIs.io as Cofferline Com Authentication.

Is the Cofferline API ready for AI agents?

Cofferline has a Kin Score of 42.4 out of 100 (developing) and an Agent Readiness score of 34.5 (agent-ready), scored by API Evangelist on 2026-11-06.

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get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
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find_cohortsEvery scored population of providers in the catalog.

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