Curve Finance

Curve Finance is a DeFi automated market maker (AMM) optimized for low-slippage swaps among stablecoins and pegged assets across multiple chains. Curve maintains a public read-only REST API at api.curve.finance providing pool, gauge, factory, governance, lending, crvUSD, and TVL data. Smart-contract entry points are the primary write path; the REST API is for indexing and analytics.

Curve Finance publishes 10 API contracts indexed on the APIs.io network, including Crv USD API, Deprecated API, Gauges API, and 7 more. Tagged areas include Web3, DeFi, Decentralized Exchange, AMM, and Stablecoins.

The Curve Finance catalog on APIs.io includes 1 Spectral governance ruleset.

Curve Finance’s developer surface includes developer portal, documentation, GitHub presence, engineering blog, and 9 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

29.6/100 thin ▬ flat Agent 20/100 agent aware Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemium

1 published contract

Web3 DeFi Decentralized Exchange AMM StablecoinsPegged AssetsMulti-Chain Open Source

Kin Score

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

Composite quality — 29.6/100 · thin

Contract Quality 10.3 / 21

Developer Ergonomics 4.5 / 17

Access Clarity 0.9 / 17

Operational Transparency 2.3 / 11

Contract Governance 1.4 / 10

Discoverability 6.2 / 9

Regulatory Posture 2.5 / 15

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 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 Securities & Market Data 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 does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

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
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
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

7 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 5.3 — up to +18.9 composite points
Developer Ergonomics scores 26.2 — up to +14.8 composite points
Contract Quality scores 48.6 — up to +12.9 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/curve-finance/apis.yml: open an issue on github.com/api-evangelist/curve-finance 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 →

Markets this provider is in provisional

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.

Market	Position	Depth	Registered MCP server	Declares compatibility
Stablecoins and Tokenization (stablecoin issuers, tokenized assets)	covered	17.2 (thin)	-	-

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 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.

OpenAPI

measured — observed by APIs.io (published)

APIs 10

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

Curve REST API

Public read-only REST API used by the Curve UI and third parties. Endpoints cover /getPools/all, /getSubgraphData, /getFactoryAPYs, /getLendingVaults, /getCrvUsdData, and simila...

Curve Smart Contracts

Curve's primary surface for swaps and liquidity is a set of audited Vyper smart contracts deployed across multiple chains (StableSwap and CryptoSwap pools, factories, gauges, vo...

Curve Finance Crv USD API

The crvUSD API from Curve Finance — 6 operation(s) for crvusd.

Curve Finance Deprecated API

The Deprecated API from Curve Finance — 10 operation(s) for deprecated.

Curve Finance Gauges API

The Gauges API from Curve Finance — 1 operation(s) for gauges.

Curve Finance Lending API

The Lending API from Curve Finance — 3 operation(s) for lending.

Curve Finance Misc API

The Misc API from Curve Finance — 5 operation(s) for misc.

Curve Finance Pools API

The Pools API from Curve Finance — 11 operation(s) for pools.

Curve Finance Tokens API

The Tokens API from Curve Finance — 1 operation(s) for tokens.

Curve Finance Volumes and APYs API

The Volumes and APYs API from Curve Finance — 8 operation(s) for volumes and apys.

Scroll for all 10

Open Collections 9

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Curve.finance crvUSD API

OPEN COLLECTION

Curve.finance crvUSD Deprecated API

OPEN COLLECTION

Curve.finance crvUSD Gauges API

OPEN COLLECTION

Curve.finance crvUSD Lending API

OPEN COLLECTION

Curve.finance crvUSD Misc API

OPEN COLLECTION

Curve.finance crvUSD Pools API

OPEN COLLECTION

Curve.finance crvUSD Tokens API

OPEN COLLECTION

Curve.finance crvUSD Volumes and APYs API

OPEN COLLECTION

Curve.finance API

OPEN COLLECTION

Scroll for all 9

GraphQL 1

GraphQL schemas published by this provider.

Curve Finance GraphQL

Curve Finance exposes on-chain data through The Graph Protocol subgraphs. The primary production subgraph is maintained by Messari and follows the DEX AMM schema standard (versi...

GRAPHQL

Curve Finance API pricing

Not yet checked against Curve Finance's own pricing page. Compiled by API Evangelist on 2026-05-08 from docs.curve.finance/; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Public REST API (Free) open	Free
On-chain (gas + protocol fee) usage	—

Plan details, limits and sources →

Rate limits

Public API (fair use): 60 requests per minute

Compiled by API Evangelist, not yet checked against Curve Finance's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Curve Finance Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Curve Finance Rate Limits

1 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Curve Finance

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Curve Finance Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Curve Finance API Rules

41 rules · 38 errors 2 warnings 1 info

SPECTRAL

Security Posture 2

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

Curve Finance Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Curve Finance Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Curve Finance Agentic Access

43 operations

43 operations · 0 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Portal

Portal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

Access & Security 2

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Forums

Forums

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: curve-finance
url: https://raw.githubusercontent.com/api-evangelist/curve-finance/refs/heads/main/apis.yml
name: Curve Finance
kind: protocol
deliveryModel:
  model: saas
  license_evidence:
    not_product:
    - curvefi/curve-api
    - curvefi/curve-contract
  open_source: unknown
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: low
  source:
  - openapi
  - pricing
  - repository-not-product
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/curve-finance.png
x-docs-platform: docusaurus
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-25
tags:
- Web3
- DeFi
- Decentralized Exchange
- AMM
- Stablecoins
- Pegged Assets
- Multi-Chain
- Open Source
tags_raw:
- Web3
- DeFi
- DEX
- AMM
- Stablecoins
- Pegged Assets
- Multi-chain
- Open Source
- Open-Source
created: '2026-05-08'
modified: '2026-05-08'
specificationVersion: '0.23'
description: Curve Finance is a DeFi automated market maker (AMM) optimized for low-slippage swaps among stablecoins and pegged
  assets across multiple chains. Curve maintains a public read-only REST API at api.curve.finance providing pool, gauge, factory,
  governance, lending, crvUSD, and TVL data. Smart-contract entry points are the primary write path; the REST API is for indexing
  and analytics.
apis:
- aid: curve-finance:rest-api
  name: Curve REST API
  tags:
  - Pools
  - Gauges
  - TVL
  - Lending
  - crvUSD
  - Governance
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://api.curve.finance/api
  humanURL: https://docs.curve.finance/curve-api/curve-api/
  description: Public read-only REST API used by the Curve UI and third parties. Endpoints cover /getPools/all, /getSubgraphData,
    /getFactoryAPYs, /getLendingVaults, /getCrvUsdData, and similar. JSON output. No authentication or rate limiting at the
    documented level.
  properties:
  - type: Documentation
    url: https://docs.curve.finance/curve-api/curve-api/
  - type: GitHub
    url: https://github.com/curvefi/curve-api
  - url: graphql/curve-finance-graphql.md
    type: GraphQL
  x-features:
  - Pool, gauge, factory, lending, crvUSD endpoints
  - Multi-chain (Ethereum, Arbitrum, Optimism, Polygon, Avalanche, etc.)
  - JSON read-only
  x-use-cases:
  - Indexing Curve liquidity for analytics
  - Building Curve dashboards
  - Pool APY calculators
- aid: curve-finance:smart-contracts
  name: Curve Smart Contracts
  tags:
  - Smart Contracts
  - Onchain
  - Vyper
  - Pools
  tags_raw:
  - Smart Contracts
  - On-chain
  - Vyper
  - Pools
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://etherscan.io/address/curve.fi
  humanURL: https://docs.curve.finance/
  description: Curve's primary surface for swaps and liquidity is a set of audited Vyper smart contracts deployed across multiple
    chains (StableSwap and CryptoSwap pools, factories, gauges, voting escrow, crvUSD, lending markets).
  properties:
  - type: Documentation
    url: https://docs.curve.finance/
  - type: GitHub
    url: https://github.com/curvefi/curve-contract
  x-features:
  - StableSwap and CryptoSwap pools
  - Factory pools and gauges
  - veCRV voting escrow
  - crvUSD stablecoin
  - Lending markets
  x-use-cases:
  - On-chain swap execution
  - Liquidity provisioning
  - Governance voting
- aid: curve-finance:curve-finance-crvusd-api
  name: Curve Finance Crv USD API
  description: The crvUSD API from Curve Finance — 6 operation(s) for crvusd.
  humanURL: https://docs.curve.finance/curve-api/curve-api/
  baseURL: https://api.curve.finance/api
  tags:
  - crvUSD
  properties:
  - type: OpenAPI
    url: openapi/curve-finance-crvusd-api-openapi.yml
- aid: curve-finance:curve-finance-deprecated-api
  name: Curve Finance Deprecated API
  description: The Deprecated API from Curve Finance — 10 operation(s) for deprecated.
  humanURL: https://docs.curve.finance/curve-api/curve-api/
  baseURL: https://api.curve.finance/api
  tags:
  - Deprecated
  properties:
  - type: OpenAPI
    url: openapi/curve-finance-deprecated-api-openapi.yml
- aid: curve-finance:curve-finance-gauges-api
  name: Curve Finance Gauges API
  description: The Gauges API from Curve Finance — 1 operation(s) for gauges.
  humanURL: https://docs.curve.finance/curve-api/curve-api/
  baseURL: https://api.curve.finance/api
  tags:
  - Gauges
  properties:
  - type: OpenAPI
    url: openapi/curve-finance-gauges-api-openapi.yml
- aid: curve-finance:curve-finance-lending-api
  name: Curve Finance Lending API
  description: The Lending API from Curve Finance — 3 operation(s) for lending.
  humanURL: https://docs.curve.finance/curve-api/curve-api/
  baseURL: https://api.curve.finance/api
  tags:
  - Lending
  properties:
  - type: OpenAPI
    url: openapi/curve-finance-lending-api-openapi.yml
- aid: curve-finance:curve-finance-misc-api
  name: Curve Finance Misc API
  description: The Misc API from Curve Finance — 5 operation(s) for misc.
  humanURL: https://docs.curve.finance/curve-api/curve-api/
  baseURL: https://api.curve.finance/api
  tags: []
  tags_raw:
  - Misc
  properties:
  - type: OpenAPI
    url: openapi/curve-finance-misc-api-openapi.yml
- aid: curve-finance:curve-finance-pools-api
  name: Curve Finance Pools API
  description: The Pools API from Curve Finance — 11 operation(s) for pools.
  humanURL: https://docs.curve.finance/curve-api/curve-api/
  baseURL: https://api.curve.finance/api
  tags:
  - Pools
  properties:
  - type: OpenAPI
    url: openapi/curve-finance-pools-api-openapi.yml
- aid: curve-finance:curve-finance-tokens-api
  name: Curve Finance Tokens API
  description: The Tokens API from Curve Finance — 1 operation(s) for tokens.
  humanURL: https://docs.curve.finance/curve-api/curve-api/
  baseURL: https://api.curve.finance/api
  tags:
  - Tokens
  properties:
  - type: OpenAPI
    url: openapi/curve-finance-tokens-api-openapi.yml
- aid: curve-finance:curve-finance-volumes-and-apys-api
  name: Curve Finance Volumes and APYs API
  description: The Volumes and APYs API from Curve Finance — 8 operation(s) for volumes and apys.
  humanURL: https://docs.curve.finance/curve-api/curve-api/
  baseURL: https://api.curve.finance/api
  tags:
  - Volumes and APYs
  properties:
  - type: OpenAPI
    url: openapi/curve-finance-volumes-and-apys-api-openapi.yml
common:
- type: Website
  url: https://www.curve.finance/
- type: AgenticAccess
  url: agentic-access/curve-finance-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/curve-finance-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/curve-finance-domain-security.yml
- type: Portal
  url: https://curve.fi/
- type: Documentation
  url: https://docs.curve.finance/
- type: GitHub
  url: https://github.com/curvefi
- type: Forums
  url: https://gov.curve.finance/
- type: Plans
  url: plans/curve-finance-plans-pricing.yml
- type: RateLimits
  url: rate-limits/curve-finance-rate-limits.yml
- type: FinOps
  url: finops/curve-finance-finops.yml
- type: LlmsText
  url: https://docs.curve.finance/llms.txt
- url: https://news.curve.finance/rss/
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Curve Finance API — frequently asked questions

Does Curve Finance have an API?

Yes. APIs.io lists 10 APIs from Curve Finance, including Curve REST API, Curve Smart Contracts and Curve Finance Crv USD API, and 7 more.

Is there an OpenAPI specification for the Curve Finance API?

Yes. APIs.io indexes 8 OpenAPI specifications for Curve Finance, each linked for download from this page.

How much does the Curve Finance API cost?

APIs.io lists 2 pricing plans for Curve Finance, with each plan's price, limits and inclusions under Pricing on this page.

Is the Curve Finance API ready for AI agents?

Curve Finance has a Kin Score of 29.6 out of 100 (thin) and an Agent Readiness score of 19.8 (agent-aware), scored by API Evangelist on 2026-11-06.

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