# flexyield-io

**Canonical:** https://apis.io/providers/flexyield-io/  
**Website:** https://flexyield.io/  
**APIs profiled:** 1

FlexYield provides a unified API gateway that aggregates JSON-RPC traffic across multiple blockchain providers, offering automatic failover, a single billing meter, and support for several major chains including Ethereum, Base, Arbitrum, Optimism, Polygon, and Solana. Users can start for free without a wallet or crypto, access a toolbox of utilities, and view real-time uptime and performance metrics. The platform aims to simplify blockchain integration by consolidating endpoints, reducing complexity, and delivering transparent pricing.

## Kin Score — 61.3 / 100 (strong)

Scored 2026-10-31 under rubric 0.25.0.

| Facet | Score |
|---|---|
| Discoverability | 65.0 |
| Contract Quality | 52.9 |
| Contract Governance | 79.1 |
| Operational Transparency | 52.6 |
| Developer Ergonomics | 54.8 |
| Access Clarity | 60.0 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 30.4 (matched via fallback).

## Agent readiness — 36.5 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | unknown |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | yes |
| Consent Identity | no |
| Agent Card | flavored |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |
| Pagination Ratio | na |
| Operation Distinctiveness | distinct |

## APIs (7)

- **flexyield-io Agents API** — The Agents API from flexyield-io — 1 operation(s) for agents.
- **flexyield-io Data API** — The Data API from flexyield-io — 2 operation(s) for data.
- **flexyield-io Keys API** — The Keys API from flexyield-io — 3 operation(s) for keys.
- **flexyield-io Rpc API** — The Rpc API from flexyield-io — 1 operation(s) for rpc.
- **flexyield-io Statements API** — The Statements API from flexyield-io — 2 operation(s) for statements.
- **flexyield-io Toolbox API** — The Toolbox API from flexyield-io — 7 operation(s) for toolbox.
- **flexyield-io X402 API** — The X402 API from flexyield-io — 2 operation(s) for x402.

## MCP servers (1)

- **flexyield-io MCP Server** — Remote MCP server at flexyield.io.

## Agentic access (1)

- **Flexyield Io Agentic Access** — 18 operations · 6 acting · 1 human-in-the-loop

## Security (3)

- **Flexyield Io Authentication** — apiKey/http · 2 schemes
- **Flexyield Io Domain Security** — TLSv1.3 · HSTS · DMARC
- **Flexyield Io Vulnerability Disclosure** — security.txt · contact published

## Plans (1)

- **Flexyield Io Plans Pricing**

## Tags

Blockchain, API Gateway, Unified Billing, Multi-Chain, Free Tier

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/flexyield-io/). Scores are computed from the provider's own public artifacts under a published rubric.